1707182d7SNobutomo Nakano# This file is in the public domain, so clarified as of 2707182d7SNobutomo Nakano# 2009-05-17 by Arthur David Olson. 37c478bd9Sstevel@tonic-gate 46f8e8937SDan McDonald# This file is by no means authoritative; if you think you know better, 57c478bd9Sstevel@tonic-gate# go ahead and edit the file (and please send any changes to 66f8e8937SDan McDonald# tz@iana.org for general use in the future). For more, please see 76f8e8937SDan McDonald# the file CONTRIBUTING in the tz distribution. 87c478bd9Sstevel@tonic-gate 9dafc4501SDan McDonald# From Paul Eggert (2016-12-05): 1000973057SDan McDonald# 1100973057SDan McDonald# Unless otherwise specified, the source for data through 1990 is: 122f9aa4a7Srobbin# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 132f9aa4a7Srobbin# San Diego: ACS Publications, Inc. (2003). 1400973057SDan McDonald# Unfortunately this book contains many errors and cites no sources. 15a43ba736SRobert Mustacchi# 16dafc4501SDan McDonald# Many years ago Gwillim Law wrote that a good source 17dafc4501SDan McDonald# for time zone data was the International Air Transport 187c478bd9Sstevel@tonic-gate# Association's Standard Schedules Information Manual (IATA SSIM), 197c478bd9Sstevel@tonic-gate# published semiannually. Law sent in several helpful summaries 2000973057SDan McDonald# of the IATA's data after 1990. Except where otherwise noted, 2100973057SDan McDonald# IATA SSIM is the source for entries after 1990. 227c478bd9Sstevel@tonic-gate# 2300973057SDan McDonald# For data circa 1899, a common source is: 2400973057SDan McDonald# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 25b654b02dSYuri Pankov# https://www.jstor.org/stable/1774359 267c478bd9Sstevel@tonic-gate# 27dafc4501SDan McDonald# These tables use numeric abbreviations like -03 and -0330 for 284b8ee424SYuri Pankov# integer hour and minute UT offsets. Although earlier editions used 29dafc4501SDan McDonald# alphabetic time zone abbreviations, these abbreviations were 30dafc4501SDan McDonald# invented and did not reflect common practice. 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate############################################################################### 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate############################################################################### 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate# Argentina 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate# From Bob Devine (1988-01-28): 397c478bd9Sstevel@tonic-gate# Argentina: first Sunday in October to first Sunday in April since 1976. 407c478bd9Sstevel@tonic-gate# Double Summer time from 1969 to 1974. Switches at midnight. 417c478bd9Sstevel@tonic-gate 426f8e8937SDan McDonald# From U. S. Naval Observatory (1988-01-19): 437c478bd9Sstevel@tonic-gate# ARGENTINA 3 H BEHIND UTC 447c478bd9Sstevel@tonic-gate 4580868c53Srobbin# From Hernan G. Otero (1995-06-26): 467c478bd9Sstevel@tonic-gate# I am sending modifications to the Argentine time zone table... 477c478bd9Sstevel@tonic-gate# AR was chosen because they are the ISO letters that represent Argentina. 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 50*3508b934SYuri PankovRule Arg 1930 only - Dec 1 0:00 1:00 - 517c478bd9Sstevel@tonic-gateRule Arg 1931 only - Apr 1 0:00 0 - 52*3508b934SYuri PankovRule Arg 1931 only - Oct 15 0:00 1:00 - 537c478bd9Sstevel@tonic-gateRule Arg 1932 1940 - Mar 1 0:00 0 - 54*3508b934SYuri PankovRule Arg 1932 1939 - Nov 1 0:00 1:00 - 55*3508b934SYuri PankovRule Arg 1940 only - Jul 1 0:00 1:00 - 567c478bd9Sstevel@tonic-gateRule Arg 1941 only - Jun 15 0:00 0 - 57*3508b934SYuri PankovRule Arg 1941 only - Oct 15 0:00 1:00 - 587c478bd9Sstevel@tonic-gateRule Arg 1943 only - Aug 1 0:00 0 - 59*3508b934SYuri PankovRule Arg 1943 only - Oct 15 0:00 1:00 - 607c478bd9Sstevel@tonic-gateRule Arg 1946 only - Mar 1 0:00 0 - 61*3508b934SYuri PankovRule Arg 1946 only - Oct 1 0:00 1:00 - 627c478bd9Sstevel@tonic-gateRule Arg 1963 only - Oct 1 0:00 0 - 63*3508b934SYuri PankovRule Arg 1963 only - Dec 15 0:00 1:00 - 647c478bd9Sstevel@tonic-gateRule Arg 1964 1966 - Mar 1 0:00 0 - 65*3508b934SYuri PankovRule Arg 1964 1966 - Oct 15 0:00 1:00 - 667c478bd9Sstevel@tonic-gateRule Arg 1967 only - Apr 2 0:00 0 - 67*3508b934SYuri PankovRule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - 687c478bd9Sstevel@tonic-gateRule Arg 1968 1969 - Apr Sun>=1 0:00 0 - 69*3508b934SYuri PankovRule Arg 1974 only - Jan 23 0:00 1:00 - 707c478bd9Sstevel@tonic-gateRule Arg 1974 only - May 1 0:00 0 - 71*3508b934SYuri PankovRule Arg 1988 only - Dec 1 0:00 1:00 - 727c478bd9Sstevel@tonic-gate# 7380868c53Srobbin# From Hernan G. Otero (1995-06-26): 747c478bd9Sstevel@tonic-gate# These corrections were contributed by InterSoft Argentina S.A., 757c478bd9Sstevel@tonic-gate# obtaining the data from the: 766f8e8937SDan McDonald# Talleres de Hidrografía Naval Argentina 777c478bd9Sstevel@tonic-gate# (Argentine Naval Hydrography Institute) 787c478bd9Sstevel@tonic-gateRule Arg 1989 1993 - Mar Sun>=1 0:00 0 - 79*3508b934SYuri PankovRule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - 807c478bd9Sstevel@tonic-gate# 8180868c53Srobbin# From Hernan G. Otero (1995-06-26): 827c478bd9Sstevel@tonic-gate# From this moment on, the law that mandated the daylight saving 837c478bd9Sstevel@tonic-gate# time corrections was derogated and no more modifications 847c478bd9Sstevel@tonic-gate# to the time zones (for daylight saving) are now made. 857c478bd9Sstevel@tonic-gate# 867c478bd9Sstevel@tonic-gate# From Rives McDow (2000-01-10): 877c478bd9Sstevel@tonic-gate# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, 887c478bd9Sstevel@tonic-gate# which did not result in the switch of a time zone, as they stayed 9 hours 897c478bd9Sstevel@tonic-gate# from the International Date Line. 90*3508b934SYuri PankovRule Arg 1999 only - Oct Sun>=1 0:00 1:00 - 91106fe065Srobbin# From Paul Eggert (2007-12-28): 92106fe065Srobbin# DST was set to expire on March 5, not March 3, but since it was converted 93106fe065Srobbin# to standard time on March 3 it's more convenient for us to pretend that 94106fe065Srobbin# it ended on March 3. 95106fe065SrobbinRule Arg 2000 only - Mar 3 0:00 0 - 967c478bd9Sstevel@tonic-gate# 977c478bd9Sstevel@tonic-gate# From Peter Gradelski via Steffen Thorsen (2000-03-01): 986f8e8937SDan McDonald# We just checked with our São Paulo office and they say the government of 997c478bd9Sstevel@tonic-gate# Argentina decided not to become one of the countries that go on or off DST. 1007c478bd9Sstevel@tonic-gate# So Buenos Aires should be -3 hours from GMT at all times. 1017c478bd9Sstevel@tonic-gate# 1026f8e8937SDan McDonald# From Fabián L. Arce Jofré (2000-04-04): 1037c478bd9Sstevel@tonic-gate# The law that claimed DST for Argentina was derogated by President Fernando 1046f8e8937SDan McDonald# de la Rúa on March 2, 2000, because it would make people spend more energy 1057c478bd9Sstevel@tonic-gate# in the winter time, rather than less. The change took effect on March 3. 1067c478bd9Sstevel@tonic-gate# 1077c478bd9Sstevel@tonic-gate# From Mariano Absatz (2001-06-06): 1087c478bd9Sstevel@tonic-gate# one of the major newspapers here in Argentina said that the 1999 1097c478bd9Sstevel@tonic-gate# Timezone Law (which never was effectively applied) will (would?) be 1107c478bd9Sstevel@tonic-gate# in effect.... The article is at 1117c478bd9Sstevel@tonic-gate# http://ar.clarin.com/diario/2001-06-06/e-01701.htm 11256b82ca8SDan McDonald# ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted 1137c478bd9Sstevel@tonic-gate# 1999-09-17, and published 1999-09-21. The official publication is at: 1147c478bd9Sstevel@tonic-gate# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF 1157c478bd9Sstevel@tonic-gate# Regretfully, you have to subscribe (and pay) for the on-line version.... 1167c478bd9Sstevel@tonic-gate# 1177c478bd9Sstevel@tonic-gate# (2001-06-12): 1187c478bd9Sstevel@tonic-gate# the timezone for Argentina will not change next Sunday. 1197c478bd9Sstevel@tonic-gate# Apparently it will do so on Sunday 24th.... 1207c478bd9Sstevel@tonic-gate# http://ar.clarin.com/diario/2001-06-12/s-03501.htm 1217c478bd9Sstevel@tonic-gate# 1227c478bd9Sstevel@tonic-gate# (2001-06-25): 1237c478bd9Sstevel@tonic-gate# Last Friday (yes, the last working day before the date of the change), the 1247c478bd9Sstevel@tonic-gate# Senate annulled the 1999 law that introduced the changes later postponed. 1257c478bd9Sstevel@tonic-gate# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm 1267c478bd9Sstevel@tonic-gate# It remains the vote of the Deputies..., but it will be the same.... 1277c478bd9Sstevel@tonic-gate# This kind of things had always been done this way in Argentina. 1287c478bd9Sstevel@tonic-gate# We are still -03:00 all year round in all of the country. 1297c478bd9Sstevel@tonic-gate# 130106fe065Srobbin# From Steffen Thorsen (2007-12-21): 131106fe065Srobbin# A user (Leonardo Chaim) reported that Argentina will adopt DST.... 132106fe065Srobbin# all of the country (all Zone-entries) are affected. News reports like 133106fe065Srobbin# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate 134106fe065Srobbin# that Argentina will use DST next year as well, from October to 135106fe065Srobbin# March, although exact rules are not given. 136106fe065Srobbin# 1376f8e8937SDan McDonald# From Jesper Nørgaard Welen (2007-12-26) 138106fe065Srobbin# The last hurdle of Argentina DST is over, the proposal was approved in 1396f8e8937SDan McDonald# the lower chamber too (Diputados) with a vote 192 for and 2 against. 140106fe065Srobbin# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to 141106fe065Srobbin# the original scanned proposal, where the dates and the zero hours are 142106fe065Srobbin# clear and unambiguous...This is the article about final approval: 143106fe065Srobbin# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 144106fe065Srobbin# 145106fe065Srobbin# From Paul Eggert (2007-12-22): 146106fe065Srobbin# For dates after mid-2008, the following rules are my guesses and 147106fe065Srobbin# are quite possibly wrong, but are more likely than no DST at all. 148376a7c81SRobbin Kawabata 149376a7c81SRobbin Kawabata# From Alexander Krivenyshev (2008-09-05): 150376a7c81SRobbin Kawabata# As per message from Carlos Alberto Fonseca Arauz (Nicaragua), 151376a7c81SRobbin Kawabata# Argentina will start DST on Sunday October 19, 2008. 152376a7c81SRobbin Kawabata# 153376a7c81SRobbin Kawabata# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html 154376a7c81SRobbin Kawabata# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) 155376a7c81SRobbin Kawabata 15656b82ca8SDan McDonald# From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) 15756b82ca8SDan McDonald# via Rodrigo Severo: 15856b82ca8SDan McDonald# Argentinian law No. 25.155 is no longer valid. 159376a7c81SRobbin Kawabata# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm 16056b82ca8SDan McDonald# The new one is law No. 26.350 161376a7c81SRobbin Kawabata# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm 162376a7c81SRobbin Kawabata# So there is no summer time in Argentina for now. 163376a7c81SRobbin Kawabata 1648e4c1c45SRobbin Kawabata# From Mariano Absatz (2008-10-20): 1656f8e8937SDan McDonald# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST 1666f8e8937SDan McDonald# in Argentina from 2008-10-19 until 2009-03-15. 1678e4c1c45SRobbin Kawabata# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 1688e4c1c45SRobbin Kawabata# 1696f8e8937SDan McDonald 1706f8e8937SDan McDonald# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 1716f8e8937SDan McDonald# 2008/2009: Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La 1726f8e8937SDan McDonald# Pampa, Neuquén, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego 1738e4c1c45SRobbin Kawabata# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 1748e4c1c45SRobbin Kawabata# 1756f8e8937SDan McDonald# Press release 235 dated Saturday October 18th, from the Government of the 1766f8e8937SDan McDonald# Province of Jujuy saying it will not apply DST either (even when it was not 1776f8e8937SDan McDonald# included in Decree 1705/2008). 1788e4c1c45SRobbin Kawabata# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc 1798e4c1c45SRobbin Kawabata 1803254abe6SNobutomo Nakano# From fullinet (2009-10-18): 1813254abe6SNobutomo Nakano# As announced in 1823254abe6SNobutomo Nakano# http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 1836f8e8937SDan McDonald# (an official .gob.ar) under title: "Sin Cambio de Hora" 1846f8e8937SDan McDonald# (English: "No hour change"). 1853254abe6SNobutomo Nakano# 1866f8e8937SDan McDonald# "Por el momento, el Gobierno Nacional resolvió no modificar la hora 1876f8e8937SDan McDonald# oficial, decisión que estaba en estudio para su implementación el 1886f8e8937SDan McDonald# domingo 18 de octubre. Desde el Ministerio de Planificación se anunció 1896f8e8937SDan McDonald# que la Argentina hoy, en estas condiciones meteorológicas, no necesita 1906f8e8937SDan McDonald# la modificación del huso horario, ya que 2009 nos encuentra con 1916f8e8937SDan McDonald# crecimiento en la producción y distribución energética." 1923254abe6SNobutomo Nakano 193*3508b934SYuri PankovRule Arg 2007 only - Dec 30 0:00 1:00 - 1943254abe6SNobutomo NakanoRule Arg 2008 2009 - Mar Sun>=15 0:00 0 - 195*3508b934SYuri PankovRule Arg 2008 only - Oct Sun>=15 0:00 1:00 - 196a43ba736SRobert Mustacchi 1977c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-05-21): 1987c478bd9Sstevel@tonic-gate# Today it was officially published that the Province of Mendoza is changing 1997c478bd9Sstevel@tonic-gate# its timezone this winter... starting tomorrow night.... 2007c478bd9Sstevel@tonic-gate# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf 2017c478bd9Sstevel@tonic-gate# From Paul Eggert (2004-05-24): 2027c478bd9Sstevel@tonic-gate# It's Law No. 7,210. This change is due to a public power emergency, so for 2037c478bd9Sstevel@tonic-gate# now we'll assume it's for this year only. 2047c478bd9Sstevel@tonic-gate# 205*3508b934SYuri Pankov# From Paul Eggert (2018-01-31): 2066f8e8937SDan McDonald# Hora de verano para la República Argentina 2076f8e8937SDan McDonald# http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html 2086f8e8937SDan McDonald# says that standard time in Argentina from 1894-10-31 2097c478bd9Sstevel@tonic-gate# to 1920-05-01 was -4:16:48.25. Go with this more-precise value 210*3508b934SYuri Pankov# over Shanks & Pottenger. It is upward compatible with Milne, who 211*3508b934SYuri Pankov# says Córdoba time was -4:16:48.2. 212*3508b934SYuri Pankov 2137c478bd9Sstevel@tonic-gate# 2147c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-06-05): 2157c478bd9Sstevel@tonic-gate# These media articles from a major newspaper mostly cover the current state: 2167c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/05/27/de_604825.asp 2177c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/05/28/de_605203.asp 2187c478bd9Sstevel@tonic-gate# 2197c478bd9Sstevel@tonic-gate# The following eight (8) provinces pulled clocks back to UTC-04:00 at 2207c478bd9Sstevel@tonic-gate# midnight Monday May 31st. (that is, the night between 05/31 and 06/01). 2217c478bd9Sstevel@tonic-gate# Apparently, all nine provinces would go back to UTC-03:00 at the same 2227c478bd9Sstevel@tonic-gate# time in October 17th. 2237c478bd9Sstevel@tonic-gate# 2247c478bd9Sstevel@tonic-gate# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, 2256f8e8937SDan McDonald# Tierra del Fuego, Tucumán. 2267c478bd9Sstevel@tonic-gate# 2277c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-06-14): 2286f8e8937SDan McDonald# ... this weekend, the Province of Tucumán decided it'd go back to UTC-03:00 2297c478bd9Sstevel@tonic-gate# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's 2307c478bd9Sstevel@tonic-gate# annoyance with the change is much higher than the power savings obtained.... 2317c478bd9Sstevel@tonic-gate# 2327c478bd9Sstevel@tonic-gate# From Gwillim Law (2004-06-14): 2337c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/06/10/de_609078.asp ... 2347c478bd9Sstevel@tonic-gate# "The time change in Tierra del Fuego was a conflicted decision from 2357c478bd9Sstevel@tonic-gate# the start. The government had decreed that the measure would take 2367c478bd9Sstevel@tonic-gate# effect on June 1, but a normative error forced the new time to begin 2377c478bd9Sstevel@tonic-gate# three days earlier, from a Saturday to a Sunday.... 2387c478bd9Sstevel@tonic-gate# Our understanding was that the change was originally scheduled to take place 2397c478bd9Sstevel@tonic-gate# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other 2407c478bd9Sstevel@tonic-gate# provinces). Sunday was May 30, only two days earlier. So the article 2417c478bd9Sstevel@tonic-gate# contains a contradiction. I would give more credence to the Saturday/Sunday 2427c478bd9Sstevel@tonic-gate# date than the "three days earlier" phrase, and conclude that Tierra del 2437c478bd9Sstevel@tonic-gate# Fuego set its clocks back at 2004-05-30 00:00. 2447c478bd9Sstevel@tonic-gate# 2457c478bd9Sstevel@tonic-gate# From Steffen Thorsen (2004-10-05): 2467c478bd9Sstevel@tonic-gate# The previous law 7210 which changed the province of Mendoza's time zone 2477c478bd9Sstevel@tonic-gate# back in May have been modified slightly in a new law 7277, which set the 2487c478bd9Sstevel@tonic-gate# new end date to 2004-09-26 (original date was 2004-10-17). 2497c478bd9Sstevel@tonic-gate# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf 2507c478bd9Sstevel@tonic-gate# 2517c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-10-05): 2527c478bd9Sstevel@tonic-gate# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between 2537c478bd9Sstevel@tonic-gate# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 2547c478bd9Sstevel@tonic-gate# at midnight between Saturday, July 24th and Sunday, July 25th.... 2557c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000329.html 2567c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000426.html 2577c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000441.html 2587c478bd9Sstevel@tonic-gate 2598593320bSrobbin# From Alex Krivenyshev (2008-01-17): 2608593320bSrobbin# Here are articles that Argentina Province San Luis is planning to end DST 2618593320bSrobbin# as earlier as upcoming Monday January 21, 2008 or February 2008: 2628593320bSrobbin# 2636f8e8937SDan McDonald# Provincia argentina retrasa reloj y marca diferencia con resto del país 2648593320bSrobbin# (Argentine Province delayed clock and mark difference with the rest of the 2658593320bSrobbin# country) 2668593320bSrobbin# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel 2678593320bSrobbin# 2688593320bSrobbin# Es inminente que en San Luis atrasen una hora los relojes 2698593320bSrobbin# (It is imminent in San Luis clocks one hour delay) 270b654b02dSYuri Pankov# https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html 271b654b02dSYuri Pankov# http://www.worldtimezone.com/dst_news/dst_news_argentina02.html 2728593320bSrobbin 2736f8e8937SDan McDonald# From Jesper Nørgaard Welen (2008-01-18): 2748593320bSrobbin# The page of the San Luis provincial government 2758593320bSrobbin# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 2768593320bSrobbin# confirms what Alex Krivenyshev has earlier sent to the tz 2778593320bSrobbin# emailing list about that San Luis plans to return to standard 2788593320bSrobbin# time much earlier than the rest of the country. It also 279a43ba736SRobert Mustacchi# confirms that upon request the provinces San Juan and Mendoza 280a43ba736SRobert Mustacchi# refused to follow San Luis in this change. 281a43ba736SRobert Mustacchi# 2826f8e8937SDan McDonald# The change is supposed to take place Monday the 21st at 0:00 2838593320bSrobbin# hours. As far as I understand it if this goes ahead, we need 2848593320bSrobbin# a new timezone for San Luis (although there are also documented 2858593320bSrobbin# independent changes in the southamerica file of San Luis in 2868593320bSrobbin# 1990 and 1991 which has not been confirmed). 2878593320bSrobbin 2886f8e8937SDan McDonald# From Jesper Nørgaard Welen (2008-01-25): 2898593320bSrobbin# Unfortunately the below page has become defunct, about the San Luis 2908593320bSrobbin# time change. Perhaps because it now is part of a group of pages "Most 2918593320bSrobbin# important pages of 2008." 2928593320bSrobbin# 2938593320bSrobbin# You can use 2948593320bSrobbin# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 2958593320bSrobbin# instead it seems. Or use "Buscador" from the main page of the San Luis 2968593320bSrobbin# government, and fill in "huso" and click OK, and you will get 3 pages 2978593320bSrobbin# from which the first one is identical to the above. 2988593320bSrobbin 2998593320bSrobbin# From Mariano Absatz (2008-01-28): 3008593320bSrobbin# I can confirm that the Province of San Luis (and so far only that 3018593320bSrobbin# province) decided to go back to UTC-3 effective midnight Jan 20th 2008 3028593320bSrobbin# (that is, Monday 21st at 0:00 is the time the clocks were delayed back 3038593320bSrobbin# 1 hour), and they intend to keep UTC-3 as their timezone all year round 3048593320bSrobbin# (that is, unless they change their mind any minute now). 3058593320bSrobbin# 3068593320bSrobbin# So we'll have to add yet another city to 'southamerica' (I think San 3078593320bSrobbin# Luis city is the mos populated city in the Province, so it'd be 3088593320bSrobbin# America/Argentina/San_Luis... of course I can't remember if San Luis's 3098593320bSrobbin# history of particular changes goes along with Mendoza or San Juan :-( 3108593320bSrobbin# (I only remember not being able to collect hard facts about San Luis 3118593320bSrobbin# back in 2004, when these provinces changed to UTC-4 for a few days, I 3128593320bSrobbin# mailed them personally and never got an answer). 3138593320bSrobbin 3146f8e8937SDan McDonald# From Paul Eggert (2014-08-12): 3156f8e8937SDan McDonald# Unless otherwise specified, data entries are from Shanks & Pottenger through 3166f8e8937SDan McDonald# 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that 31756725381Srobbin# America/Cordoba split into 6 subregions during 1991/1992, one of which 31856725381Srobbin# was America/San_Luis, but we haven't verified this yet so for now we'll 31956725381Srobbin# keep America/Cordoba a single region rather than splitting it into the 32056725381Srobbin# other 5 subregions. 32156725381Srobbin 32210355008SNobutomo Nakano# From Mariano Absatz (2009-03-13): 32310355008SNobutomo Nakano# Yesterday (with our usual 2-day notice) the Province of San Luis 32410355008SNobutomo Nakano# decided that next Sunday instead of "staying" @utc-03:00 they will go 32510355008SNobutomo Nakano# to utc-04:00 until the second Saturday in October... 32610355008SNobutomo Nakano# 32710355008SNobutomo Nakano# The press release is at 32810355008SNobutomo Nakano# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 3296f8e8937SDan McDonald# (I couldn't find the decree, but www.sanluis.gov.ar 3306f8e8937SDan McDonald# is the official page for the Province Government.) 33110355008SNobutomo Nakano# 332a43ba736SRobert Mustacchi# There's also a note in only one of the major national papers ... 33310355008SNobutomo Nakano# http://www.lanacion.com.ar/nota.asp?nota_id=1107912 334a43ba736SRobert Mustacchi# 335a43ba736SRobert Mustacchi# The press release says [quick and dirty translation]: 336a43ba736SRobert Mustacchi# ... announced that next Sunday, at 00:00, Puntanos (the San Luis 33710355008SNobutomo Nakano# inhabitants) will have to turn back one hour their clocks 33810355008SNobutomo Nakano# 33910355008SNobutomo Nakano# Since then, San Luis will establish its own Province timezone. Thus, 34010355008SNobutomo Nakano# during 2009, this timezone change will run from 00:00 the third Sunday 34110355008SNobutomo Nakano# in March until 24:00 of the second Saturday in October. 34210355008SNobutomo Nakano 3433254abe6SNobutomo Nakano# From Mariano Absatz (2009-10-16): 3443254abe6SNobutomo Nakano# ...the Province of San Luis is a case in itself. 3453254abe6SNobutomo Nakano# 3463254abe6SNobutomo Nakano# The Law at 3473254abe6SNobutomo Nakano# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 3483254abe6SNobutomo Nakano# is ambiguous because establishes a calendar from the 2nd Sunday in 3493254abe6SNobutomo Nakano# October at 0:00 thru the 2nd Saturday in March at 24:00 and the 3503254abe6SNobutomo Nakano# complement of that starting on the 2nd Sunday of March at 0:00 and 3513254abe6SNobutomo Nakano# ending on the 2nd Saturday of March at 24:00. 3523254abe6SNobutomo Nakano# 3533254abe6SNobutomo Nakano# This clearly breaks every time the 1st of March or October is a Sunday. 3543254abe6SNobutomo Nakano# 3553254abe6SNobutomo Nakano# IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd 3563254abe6SNobutomo Nakano# Sunday of October and March. 3573254abe6SNobutomo Nakano# 3583254abe6SNobutomo Nakano# The problem is that the changes in the rest of the Provinces that did 3593254abe6SNobutomo Nakano# change in 2007/2008, were made according to the Federal Law and Decrees 3603254abe6SNobutomo Nakano# that did so on the 3rd Sunday of October and March. 3617c478bd9Sstevel@tonic-gate# 3623254abe6SNobutomo Nakano# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday 3633254abe6SNobutomo Nakano# (October 11th) at 0:00. 3643254abe6SNobutomo Nakano# 3653254abe6SNobutomo Nakano# So I guess a new set of rules, besides "Arg", must be made and the last 3663254abe6SNobutomo Nakano# America/Argentina/San_Luis entries should change to use these... 3673254abe6SNobutomo Nakano# ... 3683254abe6SNobutomo Nakano 3690ba103b8SNobutomo Nakano# From Alexander Krivenyshev (2010-04-09): 3706f8e8937SDan McDonald# According to news reports from El Diario de la República Province San 3710ba103b8SNobutomo Nakano# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time 3726f8e8937SDan McDonald# after April 11, 2010 - will continue to have same time as rest of 3730ba103b8SNobutomo Nakano# Argentina (UTC-3) (no DST). 3740ba103b8SNobutomo Nakano# 3756f8e8937SDan McDonald# Confirmaron la prórroga del huso horario de verano (Spanish) 3760ba103b8SNobutomo Nakano# http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 3770ba103b8SNobutomo Nakano# or (some English translation): 3780ba103b8SNobutomo Nakano# http://www.worldtimezone.com/dst_news/dst_news_argentina08.html 3790ba103b8SNobutomo Nakano 3800ba103b8SNobutomo Nakano# From Mariano Absatz (2010-04-12): 3810ba103b8SNobutomo Nakano# yes...I can confirm this...and given that San Luis keeps calling 3820ba103b8SNobutomo Nakano# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" 3830ba103b8SNobutomo Nakano# rules...San Luis is still using "Western ARgentina Time" and it got 3840ba103b8SNobutomo Nakano# stuck on Summer daylight savings time even though the summer is over. 3850ba103b8SNobutomo Nakano 386*3508b934SYuri Pankov# From Paul Eggert (2018-01-23): 387c2d5ab87SDan McDonald# Perhaps San Luis operates on the legal fiction that it is at -04 388*3508b934SYuri Pankov# with perpetual daylight saving time, but ordinary usage typically seems to 389c2d5ab87SDan McDonald# just say it's at -03; see, for example, 390b654b02dSYuri Pankov# https://es.wikipedia.org/wiki/Hora_oficial_argentina 391a43ba736SRobert Mustacchi# We've documented similar situations as being plain changes to 392a43ba736SRobert Mustacchi# standard time, so let's do that here too. This does not change UTC 393a43ba736SRobert Mustacchi# offsets, only tm_isdst and the time zone abbreviations. One minor 394a43ba736SRobert Mustacchi# plus is that this silences a zic complaint that there's no POSIX TZ 395a43ba736SRobert Mustacchi# setting for time stamps past 2038. 396a43ba736SRobert Mustacchi 3977c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3987c478bd9Sstevel@tonic-gate# 3997c478bd9Sstevel@tonic-gate# Buenos Aires (BA), Capital Federal (CF), 4006f8e8937SDan McDonaldZone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 4016f8e8937SDan McDonald -4:16:48 - CMT 1920 May # Córdoba Mean Time 402dafc4501SDan McDonald -4:00 - -04 1930 Dec 403dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 404dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 405dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 406dafc4501SDan McDonald -3:00 Arg -03/-02 4077c478bd9Sstevel@tonic-gate# 4086f8e8937SDan McDonald# Córdoba (CB), Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), 4098e4c1c45SRobbin Kawabata# Chaco (CC), Formosa (FM), Santiago del Estero (SE) 4107c478bd9Sstevel@tonic-gate# 4112f9aa4a7Srobbin# Shanks & Pottenger also make the following claims, which we haven't verified: 4127c478bd9Sstevel@tonic-gate# - Formosa switched to -3:00 on 1991-01-07. 4137c478bd9Sstevel@tonic-gate# - Misiones switched to -3:00 on 1990-12-29. 4147c478bd9Sstevel@tonic-gate# - Chaco switched to -3:00 on 1991-01-04. 4157c478bd9Sstevel@tonic-gate# - Santiago del Estero switched to -4:00 on 1991-04-01, 4167c478bd9Sstevel@tonic-gate# then to -3:00 on 1991-04-26. 4177c478bd9Sstevel@tonic-gate# 4187c478bd9Sstevel@tonic-gateZone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 4197c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 420dafc4501SDan McDonald -4:00 - -04 1930 Dec 421dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 422dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 423dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 424dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 425dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 426dafc4501SDan McDonald -3:00 Arg -03/-02 4277c478bd9Sstevel@tonic-gate# 4286f8e8937SDan McDonald# Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN) 4298e4c1c45SRobbin KawabataZone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 4308e4c1c45SRobbin Kawabata -4:16:48 - CMT 1920 May 431dafc4501SDan McDonald -4:00 - -04 1930 Dec 432dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 433dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 434dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 435dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 436dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 437dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 438dafc4501SDan McDonald -3:00 - -03 4398e4c1c45SRobbin Kawabata# 4406f8e8937SDan McDonald# Tucumán (TM) 4417c478bd9Sstevel@tonic-gateZone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 4427c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 443dafc4501SDan McDonald -4:00 - -04 1930 Dec 444dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 445dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 446dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 447dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 448dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 449dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 450dafc4501SDan McDonald -4:00 - -04 2004 Jun 13 451dafc4501SDan McDonald -3:00 Arg -03/-02 4527c478bd9Sstevel@tonic-gate# 4537c478bd9Sstevel@tonic-gate# La Rioja (LR) 4547c478bd9Sstevel@tonic-gateZone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 4557c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 456dafc4501SDan McDonald -4:00 - -04 1930 Dec 457dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 458dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 1 459dafc4501SDan McDonald -4:00 - -04 1991 May 7 460dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 461dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 462dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 463dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 464dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 465dafc4501SDan McDonald -3:00 - -03 4667c478bd9Sstevel@tonic-gate# 4677c478bd9Sstevel@tonic-gate# San Juan (SJ) 4687c478bd9Sstevel@tonic-gateZone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 4697c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 470dafc4501SDan McDonald -4:00 - -04 1930 Dec 471dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 472dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 1 473dafc4501SDan McDonald -4:00 - -04 1991 May 7 474dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 475dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 476dafc4501SDan McDonald -3:00 - -03 2004 May 31 477dafc4501SDan McDonald -4:00 - -04 2004 Jul 25 478dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 479dafc4501SDan McDonald -3:00 - -03 4807c478bd9Sstevel@tonic-gate# 4817c478bd9Sstevel@tonic-gate# Jujuy (JY) 4827c478bd9Sstevel@tonic-gateZone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 4837c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 484dafc4501SDan McDonald -4:00 - -04 1930 Dec 485dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 486dafc4501SDan McDonald -3:00 Arg -03/-02 1990 Mar 4 487dafc4501SDan McDonald -4:00 - -04 1990 Oct 28 488dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 17 489dafc4501SDan McDonald -4:00 - -04 1991 Oct 6 490dafc4501SDan McDonald -3:00 1:00 -02 1992 491dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 492dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 493dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 494dafc4501SDan McDonald -3:00 - -03 4957c478bd9Sstevel@tonic-gate# 49680868c53Srobbin# Catamarca (CT), Chubut (CH) 4977c478bd9Sstevel@tonic-gateZone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 4987c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 499dafc4501SDan McDonald -4:00 - -04 1930 Dec 500dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 501dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 502dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 503dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 504dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 505dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 506dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 507dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 508dafc4501SDan McDonald -3:00 - -03 5097c478bd9Sstevel@tonic-gate# 5107c478bd9Sstevel@tonic-gate# Mendoza (MZ) 5117c478bd9Sstevel@tonic-gateZone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 5127c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 513dafc4501SDan McDonald -4:00 - -04 1930 Dec 514dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 515dafc4501SDan McDonald -3:00 Arg -03/-02 1990 Mar 4 516dafc4501SDan McDonald -4:00 - -04 1990 Oct 15 517dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 1 518dafc4501SDan McDonald -4:00 - -04 1991 Oct 15 519dafc4501SDan McDonald -4:00 1:00 -03 1992 Mar 1 520dafc4501SDan McDonald -4:00 - -04 1992 Oct 18 521dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 522dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 523dafc4501SDan McDonald -3:00 - -03 2004 May 23 524dafc4501SDan McDonald -4:00 - -04 2004 Sep 26 525dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 526dafc4501SDan McDonald -3:00 - -03 5277c478bd9Sstevel@tonic-gate# 5288593320bSrobbin# San Luis (SL) 5293254abe6SNobutomo Nakano 5300ba103b8SNobutomo NakanoRule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - 531*3508b934SYuri PankovRule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - 5323254abe6SNobutomo Nakano 5338593320bSrobbinZone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 5348593320bSrobbin -4:16:48 - CMT 1920 May 535dafc4501SDan McDonald -4:00 - -04 1930 Dec 536dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 537dafc4501SDan McDonald -3:00 Arg -03/-02 1990 538dafc4501SDan McDonald -3:00 1:00 -02 1990 Mar 14 539dafc4501SDan McDonald -4:00 - -04 1990 Oct 15 540dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 1 541dafc4501SDan McDonald -4:00 - -04 1991 Jun 1 542dafc4501SDan McDonald -3:00 - -03 1999 Oct 3 543dafc4501SDan McDonald -4:00 1:00 -03 2000 Mar 3 544dafc4501SDan McDonald -3:00 - -03 2004 May 31 545dafc4501SDan McDonald -4:00 - -04 2004 Jul 25 546dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Jan 21 547dafc4501SDan McDonald -4:00 SanLuis -04/-03 2009 Oct 11 548dafc4501SDan McDonald -3:00 - -03 5498593320bSrobbin# 5507c478bd9Sstevel@tonic-gate# Santa Cruz (SC) 5516f8e8937SDan McDonaldZone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 552dafc4501SDan McDonald -4:16:48 - CMT 1920 May 553dafc4501SDan McDonald -4:00 - -04 1930 Dec 554dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 555dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 556dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 557dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 558dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 559dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 560dafc4501SDan McDonald -3:00 - -03 5617c478bd9Sstevel@tonic-gate# 5626f8e8937SDan McDonald# Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) 5636f8e8937SDan McDonaldZone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 564dafc4501SDan McDonald -4:16:48 - CMT 1920 May 565dafc4501SDan McDonald -4:00 - -04 1930 Dec 566dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 567dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 568dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 569dafc4501SDan McDonald -3:00 - -03 2004 May 30 570dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 571dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 572dafc4501SDan McDonald -3:00 - -03 5737c478bd9Sstevel@tonic-gate 5747c478bd9Sstevel@tonic-gate# Aruba 575a43ba736SRobert MustacchiLink America/Curacao America/Aruba 5767c478bd9Sstevel@tonic-gate 5777c478bd9Sstevel@tonic-gate# Bolivia 5787c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 5797c478bd9Sstevel@tonic-gateZone America/La_Paz -4:32:36 - LMT 1890 5807c478bd9Sstevel@tonic-gate -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 5814b8ee424SYuri Pankov -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST 582dafc4501SDan McDonald -4:00 - -04 5837c478bd9Sstevel@tonic-gate 5847c478bd9Sstevel@tonic-gate# Brazil 5857c478bd9Sstevel@tonic-gate 58680868c53Srobbin# From Paul Eggert (1993-11-18): 5877c478bd9Sstevel@tonic-gate# The mayor of Rio recently attempted to change the time zone rules 5887c478bd9Sstevel@tonic-gate# just in his city, in order to leave more summer time for the tourist trade. 5897c478bd9Sstevel@tonic-gate# The rule change lasted only part of the day; 5907c478bd9Sstevel@tonic-gate# the federal government refused to follow the city's rules, and business 5917c478bd9Sstevel@tonic-gate# was in a chaos, so the mayor backed down that afternoon. 5927c478bd9Sstevel@tonic-gate 5937c478bd9Sstevel@tonic-gate# From IATA SSIM (1996-02): 5947c478bd9Sstevel@tonic-gate# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 5956f8e8937SDan McDonald# Santa Catarina (SC), Paraná (PR), São Paulo (SP), Rio de Janeiro (RJ), 5966f8e8937SDan McDonald# Espírito Santo (ES), Minas Gerais (MG), Bahia (BA), Goiás (GO), 5977c478bd9Sstevel@tonic-gate# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 5987c478bd9Sstevel@tonic-gate# [The last three states are new to this issue of the IATA SSIM.] 5997c478bd9Sstevel@tonic-gate 6007c478bd9Sstevel@tonic-gate# From Gwillim Law (1996-10-07): 6016f8e8937SDan McDonald# Geography, history (Tocantins was part of Goiás until 1989), and other 6027c478bd9Sstevel@tonic-gate# sources of time zone information lead me to believe that AL, SE, and TO were 6037c478bd9Sstevel@tonic-gate# always in BR1, and so the only change was whether or not they observed DST.... 6047c478bd9Sstevel@tonic-gate# The earliest issue of the SSIM I have is 2/91. Each issue from then until 6057c478bd9Sstevel@tonic-gate# 9/95 says that DST is observed only in the ten states I quoted from 9/95, 6067c478bd9Sstevel@tonic-gate# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 6077c478bd9Sstevel@tonic-gate# (UTC-4).... The other two time zones given for Brazil are BR3, which is 6087c478bd9Sstevel@tonic-gate# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 6097c478bd9Sstevel@tonic-gate# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 6107c478bd9Sstevel@tonic-gate# become part of the state of Pernambuco). The boundary between BR1 and BR2 6117c478bd9Sstevel@tonic-gate# has never been clearly stated. They've simply been called East and West. 6127c478bd9Sstevel@tonic-gate# However, some conclusions can be drawn from another IATA manual: the Airline 6137c478bd9Sstevel@tonic-gate# Coding Directory, which lists close to 400 airports in Brazil. For each 6147c478bd9Sstevel@tonic-gate# airport it gives a time zone which is coded to the SSIM. From that 6156f8e8937SDan McDonald# information, I'm led to conclude that the states of Amapá (AP), Ceará (CE), 6166f8e8937SDan McDonald# Maranhão (MA), Paraíba (PR), Pernambuco (PE), Piauí (PI), and Rio Grande do 6176f8e8937SDan McDonald# Norte (RN), and the eastern part of Pará (PA) are all in BR1 without DST. 6187c478bd9Sstevel@tonic-gate 6197c478bd9Sstevel@tonic-gate# From Marcos Tadeu (1998-09-27): 6206f8e8937SDan McDonald# Brazilian official page <http://pcdsh01.on.br/verao1.html> 6217c478bd9Sstevel@tonic-gate 6226f8e8937SDan McDonald# From Jesper Nørgaard (2000-11-03): 6237c478bd9Sstevel@tonic-gate# [For an official list of which regions in Brazil use which time zones, see:] 6247c478bd9Sstevel@tonic-gate# http://pcdsh01.on.br/Fusbr.htm 6257c478bd9Sstevel@tonic-gate# http://pcdsh01.on.br/Fusbrhv.htm 6267c478bd9Sstevel@tonic-gate 6277c478bd9Sstevel@tonic-gate# From Celso Doria via David Madeo (2002-10-09): 6287c478bd9Sstevel@tonic-gate# The reason for the delay this year has to do with elections in Brazil. 6297c478bd9Sstevel@tonic-gate# 6307c478bd9Sstevel@tonic-gate# Unlike in the United States, elections in Brazil are 100% computerized and 6317c478bd9Sstevel@tonic-gate# the results are known almost immediately. Yesterday, it was the first 6327c478bd9Sstevel@tonic-gate# round of the elections when 115 million Brazilians voted for President, 6337c478bd9Sstevel@tonic-gate# Governor, Senators, Federal Deputies, and State Deputies. Nobody is 6347c478bd9Sstevel@tonic-gate# counting (or re-counting) votes anymore and we know there will be a second 6357c478bd9Sstevel@tonic-gate# round for the Presidency and also for some Governors. The 2nd round will 6367c478bd9Sstevel@tonic-gate# take place on October 27th. 6377c478bd9Sstevel@tonic-gate# 6387c478bd9Sstevel@tonic-gate# The reason why the DST will only begin November 3rd is that the thousands 6397c478bd9Sstevel@tonic-gate# of electoral machines used cannot have their time changed, and since the 6407c478bd9Sstevel@tonic-gate# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 6417c478bd9Sstevel@tonic-gate# the Government decided to postpone DST, instead of changing the Constitution 6427c478bd9Sstevel@tonic-gate# (maybe, for the next elections, it will be possible to change the clock)... 6437c478bd9Sstevel@tonic-gate 6447c478bd9Sstevel@tonic-gate# From Rodrigo Severo (2004-10-04): 6457c478bd9Sstevel@tonic-gate# It's just the biannual change made necessary by the much hyped, supposedly 6467c478bd9Sstevel@tonic-gate# modern Brazilian eletronic voting machines which, apparently, can't deal 6477c478bd9Sstevel@tonic-gate# with a time change between the first and the second rounds of the elections. 6487c478bd9Sstevel@tonic-gate 649538f0434Srobbin# From Steffen Thorsen (2007-09-20): 650538f0434Srobbin# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 651538f0434Srobbin# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 652538f0434Srobbin 65356725381Srobbin# From Paul Schulze (2008-06-24): 65456725381Srobbin# ...by law number 11.662 of April 24, 2008 (published in the "Diario 6556f8e8937SDan McDonald# Oficial da União"...) in Brazil there are changes in the timezones, 65656725381Srobbin# effective today (00:00am at June 24, 2008) as follows: 65756725381Srobbin# 6586f8e8937SDan McDonald# a) The timezone UTC+5 is extinguished, with all the Acre state and the 65956725381Srobbin# part of the Amazonas state that had this timezone now being put to the 66056725381Srobbin# timezone UTC+4 6616f8e8937SDan McDonald# b) The whole Pará state now is put at timezone UTC+3, instead of just 66256725381Srobbin# part of it, as was before. 66356725381Srobbin# 66456725381Srobbin# This change follows a proposal of senator Tiao Viana of Acre state, that 66556725381Srobbin# proposed it due to concerns about open television channels displaying 66656725381Srobbin# programs inappropriate to youths in the states that had the timezone 66756725381Srobbin# UTC+5 too early in the night. In the occasion, some more corrections 66856725381Srobbin# were proposed, trying to unify the timezones of any given state. This 66956725381Srobbin# change modifies timezone rules defined in decree 2.784 of 18 June, 67056725381Srobbin# 1913. 67156725381Srobbin 67256725381Srobbin# From Rodrigo Severo (2008-06-24): 67356725381Srobbin# Just correcting the URL: 674707182d7SNobutomo Nakano# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 67556725381Srobbin# 67656725381Srobbin# As a result of the above Decree I believe the America/Rio_Branco 67756725381Srobbin# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 6786f8e8937SDan McDonald# be created to represent the...west side of the Pará State. I 67956725381Srobbin# suggest this new timezone be called Santarem as the most 68056725381Srobbin# important/populated city in the affected area. 68156725381Srobbin# 68256725381Srobbin# This new timezone would be the same as the Rio_Branco timezone up to 68356725381Srobbin# the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 68456725381Srobbin 68556725381Srobbin# From Alex Krivenyshev (2008-06-24): 68656725381Srobbin# This is a quick reference page for New and Old Brazil Time Zones map. 68756725381Srobbin# http://www.worldtimezone.com/brazil-time-new-old.php 68856725381Srobbin# 6896f8e8937SDan McDonald# - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 6906f8e8937SDan McDonald# (state Acre and the part of the Amazonas will be UTC/GMT-04) - western 6916f8e8937SDan McDonald# part of Par state is moving to one timezone UTC-03 (from UTC-04). 69256725381Srobbin 6937c478bd9Sstevel@tonic-gate# From Paul Eggert (2002-10-10): 6947c478bd9Sstevel@tonic-gate# The official decrees referenced below are mostly taken from 6956f8e8937SDan McDonald# Decretos sobre o Horário de Verão no Brasil. 6966f8e8937SDan McDonald# http://pcdsh01.on.br/DecHV.html 6977c478bd9Sstevel@tonic-gate 698376a7c81SRobbin Kawabata# From Steffen Thorsen (2008-08-29): 699376a7c81SRobbin Kawabata# As announced by the government and many newspapers in Brazil late 700376a7c81SRobbin Kawabata# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 701376a7c81SRobbin Kawabata# it will end on 2009-02-15 (current rule for Brazil is fine). Based on 702376a7c81SRobbin Kawabata# past years experience with the elections, there was a good chance that 703376a7c81SRobbin Kawabata# the start was postponed to November, but it did not happen this year. 704376a7c81SRobbin Kawabata# 705376a7c81SRobbin Kawabata# It has not yet been posted to http://pcdsh01.on.br/DecHV.html 706376a7c81SRobbin Kawabata# 707376a7c81SRobbin Kawabata# An official page about it: 708376a7c81SRobbin Kawabata# http://www.mme.gov.br/site/news/detail.do?newsId=16722 709376a7c81SRobbin Kawabata# Note that this link does not always work directly, but must be accessed 710376a7c81SRobbin Kawabata# by going to 711376a7c81SRobbin Kawabata# http://www.mme.gov.br/first 712376a7c81SRobbin Kawabata# 713376a7c81SRobbin Kawabata# One example link that works directly: 714376a7c81SRobbin Kawabata# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 715376a7c81SRobbin Kawabata# (Portuguese) 716376a7c81SRobbin Kawabata# 717376a7c81SRobbin Kawabata# We have a written a short article about it as well: 718b654b02dSYuri Pankov# https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 719abaa65c8SYuri Pankov# 720abaa65c8SYuri Pankov# From Alexander Krivenyshev (2011-10-04): 721abaa65c8SYuri Pankov# State Bahia will return to Daylight savings time this year after 8 years off. 722a43ba736SRobert Mustacchi# The announcement was made by Governor Jaques Wagner in an interview to a 723a43ba736SRobert Mustacchi# television station in Salvador. 724abaa65c8SYuri Pankov 725abaa65c8SYuri Pankov# In Portuguese: 726abaa65c8SYuri Pankov# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html 727b654b02dSYuri Pankov# https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html 728abaa65c8SYuri Pankov 729abaa65c8SYuri Pankov# From Guilherme Bernardes Rodrigues (2011-10-07): 730abaa65c8SYuri Pankov# There is news in the media, however there is still no decree about it. 7316f8e8937SDan McDonald# I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the 732a43ba736SRobert Mustacchi# official agency about time in Brazil, and she confirmed that the old rule is 733abaa65c8SYuri Pankov# still in force. 734abaa65c8SYuri Pankov 735abaa65c8SYuri Pankov# From Guilherme Bernardes Rodrigues (2011-10-14) 736abaa65c8SYuri Pankov# It's official, the President signed a decree that includes Bahia in summer 737abaa65c8SYuri Pankov# time. 738abaa65c8SYuri Pankov# [ and in a second message (same day): ] 739abaa65c8SYuri Pankov# I found the decree. 740abaa65c8SYuri Pankov# 74156b82ca8SDan McDonald# DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 742abaa65c8SYuri Pankov# Link : 743abaa65c8SYuri Pankov# http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 744abaa65c8SYuri Pankov 745a43ba736SRobert Mustacchi# From Kelley Cook (2012-10-16): 746a43ba736SRobert Mustacchi# The governor of state of Bahia in Brazil announced on Thursday that 747a43ba736SRobert Mustacchi# due to public pressure, he is reversing the DST policy they implemented 748a43ba736SRobert Mustacchi# last year and will not be going to Summer Time on October 21st.... 749a43ba736SRobert Mustacchi# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia 750a43ba736SRobert Mustacchi 751a43ba736SRobert Mustacchi# From Rodrigo Severo (2012-10-16): 752a43ba736SRobert Mustacchi# Tocantins state will have DST. 753b654b02dSYuri Pankov# https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html 754a43ba736SRobert Mustacchi 755a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-09-20): 756a43ba736SRobert Mustacchi# Tocantins in Brazil is very likely not to observe DST from October.... 757a43ba736SRobert Mustacchi# http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto 758a43ba736SRobert Mustacchi# We will keep this article updated when this is confirmed: 759b654b02dSYuri Pankov# https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html 760a43ba736SRobert Mustacchi 761a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-10-17): 762b654b02dSYuri Pankov# https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html 763a43ba736SRobert Mustacchi# Senator Jorge Viana announced that Acre will change time zone on November 10. 764a43ba736SRobert Mustacchi# He did not specify the time of the change, nor if western parts of Amazonas 765a43ba736SRobert Mustacchi# will change as well. 766a43ba736SRobert Mustacchi# 767a43ba736SRobert Mustacchi# From Paul Eggert (2013-10-17): 768a43ba736SRobert Mustacchi# For now, assume western Amazonas will change as well. 769376a7c81SRobbin Kawabata 7707c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 7716f8e8937SDan McDonald# Decree 20,466 <http://pcdsh01.on.br/HV20466.htm> (1931-10-01) 7726f8e8937SDan McDonald# Decree 21,896 <http://pcdsh01.on.br/HV21896.htm> (1932-01-10) 773*3508b934SYuri PankovRule Brazil 1931 only - Oct 3 11:00 1:00 - 7747c478bd9Sstevel@tonic-gateRule Brazil 1932 1933 - Apr 1 0:00 0 - 775*3508b934SYuri PankovRule Brazil 1932 only - Oct 3 0:00 1:00 - 7766f8e8937SDan McDonald# Decree 23,195 <http://pcdsh01.on.br/HV23195.htm> (1933-10-10) 7777c478bd9Sstevel@tonic-gate# revoked DST. 7786f8e8937SDan McDonald# Decree 27,496 <http://pcdsh01.on.br/HV27496.htm> (1949-11-24) 7796f8e8937SDan McDonald# Decree 27,998 <http://pcdsh01.on.br/HV27998.htm> (1950-04-13) 780*3508b934SYuri PankovRule Brazil 1949 1952 - Dec 1 0:00 1:00 - 7817c478bd9Sstevel@tonic-gateRule Brazil 1950 only - Apr 16 1:00 0 - 7827c478bd9Sstevel@tonic-gateRule Brazil 1951 1952 - Apr 1 0:00 0 - 7836f8e8937SDan McDonald# Decree 32,308 <http://pcdsh01.on.br/HV32308.htm> (1953-02-24) 7847c478bd9Sstevel@tonic-gateRule Brazil 1953 only - Mar 1 0:00 0 - 7856f8e8937SDan McDonald# Decree 34,724 <http://pcdsh01.on.br/HV34724.htm> (1953-11-30) 7867c478bd9Sstevel@tonic-gate# revoked DST. 7876f8e8937SDan McDonald# Decree 52,700 <http://pcdsh01.on.br/HV52700.htm> (1963-10-18) 7887c478bd9Sstevel@tonic-gate# established DST from 1963-10-23 00:00 to 1964-02-29 00:00 7897c478bd9Sstevel@tonic-gate# in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 7906f8e8937SDan McDonald# Decree 53,071 <http://pcdsh01.on.br/HV53071.htm> (1963-12-03) 7917c478bd9Sstevel@tonic-gate# extended the above decree to all of the national territory on 12-09. 792*3508b934SYuri PankovRule Brazil 1963 only - Dec 9 0:00 1:00 - 7936f8e8937SDan McDonald# Decree 53,604 <http://pcdsh01.on.br/HV53604.htm> (1964-02-25) 7947c478bd9Sstevel@tonic-gate# extended summer time by one day to 1964-03-01 00:00 (start of school). 7957c478bd9Sstevel@tonic-gateRule Brazil 1964 only - Mar 1 0:00 0 - 7966f8e8937SDan McDonald# Decree 55,639 <http://pcdsh01.on.br/HV55639.htm> (1965-01-27) 797*3508b934SYuri PankovRule Brazil 1965 only - Jan 31 0:00 1:00 - 7987c478bd9Sstevel@tonic-gateRule Brazil 1965 only - Mar 31 0:00 0 - 7996f8e8937SDan McDonald# Decree 57,303 <http://pcdsh01.on.br/HV57303.htm> (1965-11-22) 800*3508b934SYuri PankovRule Brazil 1965 only - Dec 1 0:00 1:00 - 8016f8e8937SDan McDonald# Decree 57,843 <http://pcdsh01.on.br/HV57843.htm> (1966-02-18) 8027c478bd9Sstevel@tonic-gateRule Brazil 1966 1968 - Mar 1 0:00 0 - 803*3508b934SYuri PankovRule Brazil 1966 1967 - Nov 1 0:00 1:00 - 8046f8e8937SDan McDonald# Decree 63,429 <http://pcdsh01.on.br/HV63429.htm> (1968-10-15) 8057c478bd9Sstevel@tonic-gate# revoked DST. 8066f8e8937SDan McDonald# Decree 91,698 <http://pcdsh01.on.br/HV91698.htm> (1985-09-27) 807*3508b934SYuri PankovRule Brazil 1985 only - Nov 2 0:00 1:00 - 8087c478bd9Sstevel@tonic-gate# Decree 92,310 (1986-01-21) 8097c478bd9Sstevel@tonic-gate# Decree 92,463 (1986-03-13) 8107c478bd9Sstevel@tonic-gateRule Brazil 1986 only - Mar 15 0:00 0 - 8117c478bd9Sstevel@tonic-gate# Decree 93,316 (1986-10-01) 812*3508b934SYuri PankovRule Brazil 1986 only - Oct 25 0:00 1:00 - 8137c478bd9Sstevel@tonic-gateRule Brazil 1987 only - Feb 14 0:00 0 - 8146f8e8937SDan McDonald# Decree 94,922 <http://pcdsh01.on.br/HV94922.htm> (1987-09-22) 815*3508b934SYuri PankovRule Brazil 1987 only - Oct 25 0:00 1:00 - 8167c478bd9Sstevel@tonic-gateRule Brazil 1988 only - Feb 7 0:00 0 - 8176f8e8937SDan McDonald# Decree 96,676 <http://pcdsh01.on.br/HV96676.htm> (1988-09-12) 8187c478bd9Sstevel@tonic-gate# except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 819*3508b934SYuri PankovRule Brazil 1988 only - Oct 16 0:00 1:00 - 8207c478bd9Sstevel@tonic-gateRule Brazil 1989 only - Jan 29 0:00 0 - 8216f8e8937SDan McDonald# Decree 98,077 <http://pcdsh01.on.br/HV98077.htm> (1989-08-21) 8227c478bd9Sstevel@tonic-gate# with the same exceptions 823*3508b934SYuri PankovRule Brazil 1989 only - Oct 15 0:00 1:00 - 8247c478bd9Sstevel@tonic-gateRule Brazil 1990 only - Feb 11 0:00 0 - 8256f8e8937SDan McDonald# Decree 99,530 <http://pcdsh01.on.br/HV99530.htm> (1990-09-17) 8267c478bd9Sstevel@tonic-gate# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 8277c478bd9Sstevel@tonic-gate# Decree 99,629 (1990-10-19) adds BA, MT. 828*3508b934SYuri PankovRule Brazil 1990 only - Oct 21 0:00 1:00 - 8297c478bd9Sstevel@tonic-gateRule Brazil 1991 only - Feb 17 0:00 0 - 8306f8e8937SDan McDonald# Unnumbered decree <http://pcdsh01.on.br/HV1991.htm> (1991-09-25) 8317c478bd9Sstevel@tonic-gate# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 832*3508b934SYuri PankovRule Brazil 1991 only - Oct 20 0:00 1:00 - 8337c478bd9Sstevel@tonic-gateRule Brazil 1992 only - Feb 9 0:00 0 - 8346f8e8937SDan McDonald# Unnumbered decree <http://pcdsh01.on.br/HV1992.htm> (1992-10-16) 8357c478bd9Sstevel@tonic-gate# adopted by same states. 836*3508b934SYuri PankovRule Brazil 1992 only - Oct 25 0:00 1:00 - 8377c478bd9Sstevel@tonic-gateRule Brazil 1993 only - Jan 31 0:00 0 - 8386f8e8937SDan McDonald# Decree 942 <http://pcdsh01.on.br/HV942.htm> (1993-09-28) 8397c478bd9Sstevel@tonic-gate# adopted by same states, plus AM. 8406f8e8937SDan McDonald# Decree 1,252 <http://pcdsh01.on.br/HV1252.htm> (1994-09-22; 8417c478bd9Sstevel@tonic-gate# web page corrected 2004-01-07) adopted by same states, minus AM. 8426f8e8937SDan McDonald# Decree 1,636 <http://pcdsh01.on.br/HV1636.htm> (1995-09-14) 8437c478bd9Sstevel@tonic-gate# adopted by same states, plus MT and TO. 8446f8e8937SDan McDonald# Decree 1,674 <http://pcdsh01.on.br/HV1674.htm> (1995-10-13) 8457c478bd9Sstevel@tonic-gate# adds AL, SE. 846*3508b934SYuri PankovRule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - 8477c478bd9Sstevel@tonic-gateRule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 8487c478bd9Sstevel@tonic-gateRule Brazil 1996 only - Feb 11 0:00 0 - 8496f8e8937SDan McDonald# Decree 2,000 <http://pcdsh01.on.br/HV2000.htm> (1996-09-04) 8507c478bd9Sstevel@tonic-gate# adopted by same states, minus AL, SE. 851*3508b934SYuri PankovRule Brazil 1996 only - Oct 6 0:00 1:00 - 8527c478bd9Sstevel@tonic-gateRule Brazil 1997 only - Feb 16 0:00 0 - 85380868c53Srobbin# From Daniel C. Sobral (1998-02-12): 8547c478bd9Sstevel@tonic-gate# In 1997, the DS began on October 6. The stated reason was that 8557c478bd9Sstevel@tonic-gate# because international television networks ignored Brazil's policy on DS, 8567c478bd9Sstevel@tonic-gate# they bought the wrong times on satellite for coverage of Pope's visit. 8577c478bd9Sstevel@tonic-gate# This year, the ending date of DS was postponed to March 1 8587c478bd9Sstevel@tonic-gate# to help dealing with the shortages of electric power. 8597c478bd9Sstevel@tonic-gate# 8607c478bd9Sstevel@tonic-gate# Decree 2,317 (1997-09-04), adopted by same states. 861*3508b934SYuri PankovRule Brazil 1997 only - Oct 6 0:00 1:00 - 8626f8e8937SDan McDonald# Decree 2,495 <http://pcdsh01.on.br/figuras/HV2495.JPG> 8637c478bd9Sstevel@tonic-gate# (1998-02-10) 8647c478bd9Sstevel@tonic-gateRule Brazil 1998 only - Mar 1 0:00 0 - 8656f8e8937SDan McDonald# Decree 2,780 <http://pcdsh01.on.br/figuras/Hv98.jpg> (1998-09-11) 8667c478bd9Sstevel@tonic-gate# adopted by the same states as before. 867*3508b934SYuri PankovRule Brazil 1998 only - Oct 11 0:00 1:00 - 8687c478bd9Sstevel@tonic-gateRule Brazil 1999 only - Feb 21 0:00 0 - 8696f8e8937SDan McDonald# Decree 3,150 <http://pcdsh01.on.br/figuras/HV3150.gif> 8707c478bd9Sstevel@tonic-gate# (1999-08-23) adopted by same states. 8716f8e8937SDan McDonald# Decree 3,188 <http://pcdsh01.on.br/DecHV99.gif> (1999-09-30) 8727c478bd9Sstevel@tonic-gate# adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 873*3508b934SYuri PankovRule Brazil 1999 only - Oct 3 0:00 1:00 - 8747c478bd9Sstevel@tonic-gateRule Brazil 2000 only - Feb 27 0:00 0 - 8756f8e8937SDan McDonald# Decree 3,592 <http://pcdsh01.on.br/DEC3592.htm> (2000-09-06) 8767c478bd9Sstevel@tonic-gate# adopted by the same states as before. 8776f8e8937SDan McDonald# Decree 3,630 <http://pcdsh01.on.br/Dec3630.jpg> (2000-10-13) 8787c478bd9Sstevel@tonic-gate# repeals DST in PE and RR, effective 2000-10-15 00:00. 8796f8e8937SDan McDonald# Decree 3,632 <http://pcdsh01.on.br/Dec3632.jpg> (2000-10-17) 8807c478bd9Sstevel@tonic-gate# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 8816f8e8937SDan McDonald# Decree 3,916 <http://pcdsh01.on.br/figuras/HV3916.gif> 8827c478bd9Sstevel@tonic-gate# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 883*3508b934SYuri PankovRule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - 8842f9aa4a7SrobbinRule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 8857c478bd9Sstevel@tonic-gate# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 8866f8e8937SDan McDonald# 4,399 <http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm> 887*3508b934SYuri PankovRule Brazil 2002 only - Nov 3 0:00 1:00 - 8887c478bd9Sstevel@tonic-gate# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 8896f8e8937SDan McDonald# 4,844 <http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm> 890*3508b934SYuri PankovRule Brazil 2003 only - Oct 19 0:00 1:00 - 8917c478bd9Sstevel@tonic-gate# Decree 5,223 (2004-10-01) reestablishes DST in MT. 8926f8e8937SDan McDonald# 5,223 <http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm> 893*3508b934SYuri PankovRule Brazil 2004 only - Nov 2 0:00 1:00 - 8946f8e8937SDan McDonald# Decree 5,539 <http://pcdsh01.on.br/DecHV5539.gif> (2005-09-19), 89580868c53Srobbin# adopted by the same states as before. 896*3508b934SYuri PankovRule Brazil 2005 only - Oct 16 0:00 1:00 - 8976f8e8937SDan McDonald# Decree 5,920 <http://pcdsh01.on.br/DecHV5920.gif> (2006-10-03), 898538f0434Srobbin# adopted by the same states as before. 899*3508b934SYuri PankovRule Brazil 2006 only - Nov 5 0:00 1:00 - 900538f0434SrobbinRule Brazil 2007 only - Feb 25 0:00 0 - 9016f8e8937SDan McDonald# Decree 6,212 <http://pcdsh01.on.br/DecHV6212.gif> (2007-09-26), 90256725381Srobbin# adopted by the same states as before. 903*3508b934SYuri PankovRule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - 904376a7c81SRobbin Kawabata# From Frederico A. C. Neves (2008-09-10): 905a43ba736SRobert Mustacchi# According to this decree 906376a7c81SRobbin Kawabata# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 907376a7c81SRobbin Kawabata# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 908376a7c81SRobbin Kawabata# 3rd Feb Sunday. There is an exception on the return date when this is 909376a7c81SRobbin Kawabata# the Carnival Sunday then the return date will be the next Sunday... 910*3508b934SYuri PankovRule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - 911376a7c81SRobbin KawabataRule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 9124b8ee424SYuri Pankov# Decree 7,584 <http://pcdsh01.on.br/HVdecreto7584_20111013.jpg> (2011-10-13) 9134b8ee424SYuri Pankov# added Bahia. 914376a7c81SRobbin KawabataRule Brazil 2012 only - Feb Sun>=22 0:00 0 - 9154b8ee424SYuri Pankov# Decree 7,826 <http://pcdsh01.on.br/HVdecreto7826_20121015.jpg> (2012-10-15) 9164b8ee424SYuri Pankov# removed Bahia and added Tocantins. 9174b8ee424SYuri Pankov# Decree 8,112 <http://pcdsh01.on.br/HVdecreto8112_20130930.JPG> (2013-09-30) 9184b8ee424SYuri Pankov# removed Tocantins. 919376a7c81SRobbin KawabataRule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 920376a7c81SRobbin KawabataRule Brazil 2015 only - Feb Sun>=22 0:00 0 - 921376a7c81SRobbin KawabataRule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 9224b8ee424SYuri Pankov# From Steffen Thorsen (2017-12-18): 9234b8ee424SYuri Pankov# According to many media sources, next year's DST start in Brazil will move to 9244b8ee424SYuri Pankov# the first Sunday of November, and it will stay like that for the years after. 9254b8ee424SYuri Pankov# ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html 9264b8ee424SYuri Pankov# From Steffen Thorsen (2017-12-20): 9274b8ee424SYuri Pankov# http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm 928*3508b934SYuri PankovRule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - 929376a7c81SRobbin KawabataRule Brazil 2023 only - Feb Sun>=22 0:00 0 - 930376a7c81SRobbin KawabataRule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 931376a7c81SRobbin KawabataRule Brazil 2026 only - Feb Sun>=22 0:00 0 - 932376a7c81SRobbin KawabataRule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 933376a7c81SRobbin KawabataRule Brazil 2034 only - Feb Sun>=22 0:00 0 - 934376a7c81SRobbin KawabataRule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 935376a7c81SRobbin KawabataRule Brazil 2037 only - Feb Sun>=22 0:00 0 - 936376a7c81SRobbin Kawabata# From Arthur David Olson (2008-09-29): 937376a7c81SRobbin Kawabata# The next is wrong in some years but is better than nothing. 938376a7c81SRobbin KawabataRule Brazil 2038 max - Feb Sun>=15 0:00 0 - 939376a7c81SRobbin Kawabata 9407c478bd9Sstevel@tonic-gate# The latest ruleset listed above says that the following states observe DST: 9417c478bd9Sstevel@tonic-gate# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 9427c478bd9Sstevel@tonic-gate 9437c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 9447c478bd9Sstevel@tonic-gate# 9457c478bd9Sstevel@tonic-gate# Fernando de Noronha (administratively part of PE) 9467c478bd9Sstevel@tonic-gateZone America/Noronha -2:09:40 - LMT 1914 947dafc4501SDan McDonald -2:00 Brazil -02/-01 1990 Sep 17 948dafc4501SDan McDonald -2:00 - -02 1999 Sep 30 949dafc4501SDan McDonald -2:00 Brazil -02/-01 2000 Oct 15 950dafc4501SDan McDonald -2:00 - -02 2001 Sep 13 951dafc4501SDan McDonald -2:00 Brazil -02/-01 2002 Oct 1 952dafc4501SDan McDonald -2:00 - -02 9537c478bd9Sstevel@tonic-gate# Other Atlantic islands have no permanent settlement. 9546f8e8937SDan McDonald# These include Trindade and Martim Vaz (administratively part of ES), 9556f8e8937SDan McDonald# Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). 9567c478bd9Sstevel@tonic-gate# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 9577c478bd9Sstevel@tonic-gate# it also included the Penedos. 9587c478bd9Sstevel@tonic-gate# 9596f8e8937SDan McDonald# Amapá (AP), east Pará (PA) 9606f8e8937SDan McDonald# East Pará includes Belém, Marabá, Serra Norte, and São Félix do Xingu. 9616f8e8937SDan McDonald# The division between east and west Pará is the river Xingu. 9627c478bd9Sstevel@tonic-gate# In the north a very small part from the river Javary (now Jari I guess, 9636f8e8937SDan McDonald# the border with Amapá) to the Amazon, then to the Xingu. 9647c478bd9Sstevel@tonic-gateZone America/Belem -3:13:56 - LMT 1914 965dafc4501SDan McDonald -3:00 Brazil -03/-02 1988 Sep 12 966dafc4501SDan McDonald -3:00 - -03 9677c478bd9Sstevel@tonic-gate# 9686f8e8937SDan McDonald# west Pará (PA) 9696f8e8937SDan McDonald# West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. 97056725381SrobbinZone America/Santarem -3:38:48 - LMT 1914 971dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 972dafc4501SDan McDonald -4:00 - -04 2008 Jun 24 0:00 973dafc4501SDan McDonald -3:00 - -03 97456725381Srobbin# 9756f8e8937SDan McDonald# Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), 9766f8e8937SDan McDonald# Paraíba (PB) 9777c478bd9Sstevel@tonic-gateZone America/Fortaleza -2:34:00 - LMT 1914 978dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 979dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 980dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 22 981dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 982dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 983dafc4501SDan McDonald -3:00 - -03 9847c478bd9Sstevel@tonic-gate# 9857c478bd9Sstevel@tonic-gate# Pernambuco (PE) (except Atlantic islands) 9867c478bd9Sstevel@tonic-gateZone America/Recife -2:19:36 - LMT 1914 987dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 988dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 989dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 15 990dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 991dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 992dafc4501SDan McDonald -3:00 - -03 9937c478bd9Sstevel@tonic-gate# 9947c478bd9Sstevel@tonic-gate# Tocantins (TO) 9957c478bd9Sstevel@tonic-gateZone America/Araguaina -3:12:48 - LMT 1914 996dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 997dafc4501SDan McDonald -3:00 - -03 1995 Sep 14 998dafc4501SDan McDonald -3:00 Brazil -03/-02 2003 Sep 24 999dafc4501SDan McDonald -3:00 - -03 2012 Oct 21 1000dafc4501SDan McDonald -3:00 Brazil -03/-02 2013 Sep 1001dafc4501SDan McDonald -3:00 - -03 10027c478bd9Sstevel@tonic-gate# 10037c478bd9Sstevel@tonic-gate# Alagoas (AL), Sergipe (SE) 10047c478bd9Sstevel@tonic-gateZone America/Maceio -2:22:52 - LMT 1914 1005dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 1006dafc4501SDan McDonald -3:00 - -03 1995 Oct 13 1007dafc4501SDan McDonald -3:00 Brazil -03/-02 1996 Sep 4 1008dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 1009dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 22 1010dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 1011dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 1012dafc4501SDan McDonald -3:00 - -03 10137c478bd9Sstevel@tonic-gate# 10147c478bd9Sstevel@tonic-gate# Bahia (BA) 10157c478bd9Sstevel@tonic-gate# There are too many Salvadors elsewhere, so use America/Bahia instead 10167c478bd9Sstevel@tonic-gate# of America/Salvador. 10177c478bd9Sstevel@tonic-gateZone America/Bahia -2:34:04 - LMT 1914 1018dafc4501SDan McDonald -3:00 Brazil -03/-02 2003 Sep 24 1019dafc4501SDan McDonald -3:00 - -03 2011 Oct 16 1020dafc4501SDan McDonald -3:00 Brazil -03/-02 2012 Oct 21 1021dafc4501SDan McDonald -3:00 - -03 10227c478bd9Sstevel@tonic-gate# 10236f8e8937SDan McDonald# Goiás (GO), Distrito Federal (DF), Minas Gerais (MG), 10246f8e8937SDan McDonald# Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), 10257c478bd9Sstevel@tonic-gate# Santa Catarina (SC), Rio Grande do Sul (RS) 10267c478bd9Sstevel@tonic-gateZone America/Sao_Paulo -3:06:28 - LMT 1914 1027dafc4501SDan McDonald -3:00 Brazil -03/-02 1963 Oct 23 0:00 1028dafc4501SDan McDonald -3:00 1:00 -02 1964 1029dafc4501SDan McDonald -3:00 Brazil -03/-02 10307c478bd9Sstevel@tonic-gate# 10317c478bd9Sstevel@tonic-gate# Mato Grosso do Sul (MS) 10327c478bd9Sstevel@tonic-gateZone America/Campo_Grande -3:38:28 - LMT 1914 1033dafc4501SDan McDonald -4:00 Brazil -04/-03 10347c478bd9Sstevel@tonic-gate# 10357c478bd9Sstevel@tonic-gate# Mato Grosso (MT) 10367c478bd9Sstevel@tonic-gateZone America/Cuiaba -3:44:20 - LMT 1914 1037dafc4501SDan McDonald -4:00 Brazil -04/-03 2003 Sep 24 1038dafc4501SDan McDonald -4:00 - -04 2004 Oct 1 1039dafc4501SDan McDonald -4:00 Brazil -04/-03 10407c478bd9Sstevel@tonic-gate# 10416f8e8937SDan McDonald# Rondônia (RO) 10427c478bd9Sstevel@tonic-gateZone America/Porto_Velho -4:15:36 - LMT 1914 1043dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1044dafc4501SDan McDonald -4:00 - -04 10457c478bd9Sstevel@tonic-gate# 10467c478bd9Sstevel@tonic-gate# Roraima (RR) 10477c478bd9Sstevel@tonic-gateZone America/Boa_Vista -4:02:40 - LMT 1914 1048dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1049dafc4501SDan McDonald -4:00 - -04 1999 Sep 30 1050dafc4501SDan McDonald -4:00 Brazil -04/-03 2000 Oct 15 1051dafc4501SDan McDonald -4:00 - -04 10527c478bd9Sstevel@tonic-gate# 10536f8e8937SDan McDonald# east Amazonas (AM): Boca do Acre, Jutaí, Manaus, Floriano Peixoto 10547c478bd9Sstevel@tonic-gate# The great circle line from Tabatinga to Porto Acre divides 10557c478bd9Sstevel@tonic-gate# east from west Amazonas. 10567c478bd9Sstevel@tonic-gateZone America/Manaus -4:00:04 - LMT 1914 1057dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1058dafc4501SDan McDonald -4:00 - -04 1993 Sep 28 1059dafc4501SDan McDonald -4:00 Brazil -04/-03 1994 Sep 22 1060dafc4501SDan McDonald -4:00 - -04 10617c478bd9Sstevel@tonic-gate# 10627c478bd9Sstevel@tonic-gate# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 10636f8e8937SDan McDonald# Eirunepé, Envira, Ipixuna 10647c478bd9Sstevel@tonic-gateZone America/Eirunepe -4:39:28 - LMT 1914 1065dafc4501SDan McDonald -5:00 Brazil -05/-04 1988 Sep 12 1066dafc4501SDan McDonald -5:00 - -05 1993 Sep 28 1067dafc4501SDan McDonald -5:00 Brazil -05/-04 1994 Sep 22 1068dafc4501SDan McDonald -5:00 - -05 2008 Jun 24 0:00 1069dafc4501SDan McDonald -4:00 - -04 2013 Nov 10 1070dafc4501SDan McDonald -5:00 - -05 10717c478bd9Sstevel@tonic-gate# 10727c478bd9Sstevel@tonic-gate# Acre (AC) 10737c478bd9Sstevel@tonic-gateZone America/Rio_Branco -4:31:12 - LMT 1914 1074dafc4501SDan McDonald -5:00 Brazil -05/-04 1988 Sep 12 1075dafc4501SDan McDonald -5:00 - -05 2008 Jun 24 0:00 1076dafc4501SDan McDonald -4:00 - -04 2013 Nov 10 1077dafc4501SDan McDonald -5:00 - -05 10787c478bd9Sstevel@tonic-gate 10797c478bd9Sstevel@tonic-gate# Chile 10807c478bd9Sstevel@tonic-gate 108156b82ca8SDan McDonald# From Paul Eggert (2015-04-03): 108256b82ca8SDan McDonald# Shanks & Pottenger says America/Santiago introduced standard time in 10834b8ee424SYuri Pankov# 1890 and rounds its UT offset to 70W40; guess that in practice this 108456b82ca8SDan McDonald# was the same offset as in 1916-1919. It also says Pacific/Easter 108556b82ca8SDan McDonald# standardized on 109W22 in 1890; assume this didn't change the clocks. 108656b82ca8SDan McDonald# 108756b82ca8SDan McDonald# Dates for America/Santiago from 1910 to 2004 are primarily from 108856b82ca8SDan McDonald# the following source, cited by Oscar van Vlijmen (2006-10-08): 108956b82ca8SDan McDonald# [1] Chile Law 109056b82ca8SDan McDonald# http://www.webexhibits.org/daylightsaving/chile.html 1091b654b02dSYuri Pankov# This contains a copy of this official table: 109256b82ca8SDan McDonald# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) 1093b654b02dSYuri Pankov# https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm 109456b82ca8SDan McDonald# [1] needs several corrections, though. 109556b82ca8SDan McDonald# 109656b82ca8SDan McDonald# The first set of corrections is from: 109756b82ca8SDan McDonald# [2] History of the Official Time of Chile 109856b82ca8SDan McDonald# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: 1099b654b02dSYuri Pankov# https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html 110056b82ca8SDan McDonald# This is an English translation of: 110156b82ca8SDan McDonald# Historia de la hora oficial de Chile (retrieved 2012-10-24). See: 1102b654b02dSYuri Pankov# https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm 110356b82ca8SDan McDonald# A fancier Spanish version (requiring mouse-clicking) is at: 110456b82ca8SDan McDonald# http://www.horaoficial.cl/historia_hora.html 110556b82ca8SDan McDonald# Conflicts between [1] and [2] were resolved as follows: 110656b82ca8SDan McDonald# 110756b82ca8SDan McDonald# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites 110856b82ca8SDan McDonald# Boletín No. 1, Aviso No. 1 (1910). Go with [2]. 110956b82ca8SDan McDonald# 111056b82ca8SDan McDonald# - [1] says SMT was -4:42:45, [2] says Chile's official time from 111156b82ca8SDan McDonald# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National 111256b82ca8SDan McDonald# Astronomical Observatory (OAN), then located in what is now 111356b82ca8SDan McDonald# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. 111456b82ca8SDan McDonald# 111556b82ca8SDan McDonald# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites 111656b82ca8SDan McDonald# Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. 111756b82ca8SDan McDonald# 111856b82ca8SDan McDonald# - [1] does not give times for transitions; assume they occur 111956b82ca8SDan McDonald# at midnight mainland time, the current common practice. However, 112056b82ca8SDan McDonald# go with [2]'s specification of 23:00 for the 1947-05-21 transition. 112156b82ca8SDan McDonald# 112256b82ca8SDan McDonald# Another correction to [1] is from Jesper Nørgaard Welen, who 112356b82ca8SDan McDonald# wrote (2006-10-08), "I think that there are some obvious mistakes in 112456b82ca8SDan McDonald# the suggested link from Oscar van Vlijmen,... for instance entry 66 112556b82ca8SDan McDonald# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at 112656b82ca8SDan McDonald# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 112756b82ca8SDan McDonald# respectively), but anyhow it clears up some doubts too." 112856b82ca8SDan McDonald# 112956b82ca8SDan McDonald# Data for Pacific/Easter from 1910 through 1967 come from Shanks & 113056b82ca8SDan McDonald# Pottenger. After that, for lack of better info assume 113156b82ca8SDan McDonald# Pacific/Easter is always two hours behind America/Santiago; 113256b82ca8SDan McDonald# this is known to work for DST transitions starting in 2008 and 113356b82ca8SDan McDonald# may well be true for earlier transitions. 113456b82ca8SDan McDonald 11357c478bd9Sstevel@tonic-gate# From Eduardo Krell (1995-10-19): 11367c478bd9Sstevel@tonic-gate# The law says to switch to DST at midnight [24:00] on the second SATURDAY 11377c478bd9Sstevel@tonic-gate# of October.... The law is the same for March and October. 11387c478bd9Sstevel@tonic-gate# (1998-09-29): 11397c478bd9Sstevel@tonic-gate# Because of the drought this year, the government decided to go into 11407c478bd9Sstevel@tonic-gate# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 11417c478bd9Sstevel@tonic-gate# (unless there's another dry season next year, I guess). 11427c478bd9Sstevel@tonic-gate 11437c478bd9Sstevel@tonic-gate# From Julio I. Pacheco Troncoso (1999-03-18): 11447c478bd9Sstevel@tonic-gate# Because of the same drought, the government decided to end DST later, 11457c478bd9Sstevel@tonic-gate# on April 3, (one-time change). 11467c478bd9Sstevel@tonic-gate 11476f8e8937SDan McDonald# From Germán Poo-Caamaño (2008-03-03): 11488593320bSrobbin# Due to drought, Chile extends Daylight Time in three weeks. This 11498593320bSrobbin# is one-time change (Saturday 3/29 at 24:00 for America/Santiago 11508593320bSrobbin# and Saturday 3/29 at 22:00 for Pacific/Easter) 1151a43ba736SRobert Mustacchi# The Supreme Decree is located at 11528593320bSrobbin# http://www.shoa.cl/servicios/supremo316.pdf 115356b82ca8SDan McDonald# 11546f8e8937SDan McDonald# From José Miguel Garrido (2008-03-05): 11558593320bSrobbin# http://www.shoa.cl/noticias/2008/04hora/hora.htm 11568593320bSrobbin 1157d8ff9d22SNobutomo Nakano# From Angel Chiang (2010-03-04): 1158d8ff9d22SNobutomo Nakano# Subject: DST in Chile exceptionally extended to 3 April due to earthquake 1159d8ff9d22SNobutomo Nakano# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 1160d8ff9d22SNobutomo Nakano# 11616f8e8937SDan McDonald# From Arthur David Olson (2010-03-06): 1162d8ff9d22SNobutomo Nakano# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. 1163d8ff9d22SNobutomo Nakano 1164abaa65c8SYuri Pankov# From Glenn Eychaner (2011-03-28): 1165abaa65c8SYuri Pankov# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} 1166abaa65c8SYuri Pankov# In English: 1167abaa65c8SYuri Pankov# Chile's clocks will go back an hour this year on the 7th of May instead 1168abaa65c8SYuri Pankov# of this Saturday. They will go forward again the 3rd Saturday in 116956b82ca8SDan McDonald# August, not in October as they have since 1968. 1170abaa65c8SYuri Pankov 1171a43ba736SRobert Mustacchi# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): 1172a43ba736SRobert Mustacchi# As stated in the website of the Chilean Energy Ministry 1173a43ba736SRobert Mustacchi# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html 1174a43ba736SRobert Mustacchi# The Chilean Government has decided to postpone the entrance into winter time 117556b82ca8SDan McDonald# (to leave DST) from March 11 2012 to April 28th 2012.... 1176a43ba736SRobert Mustacchi# Quote from the website communication: 1177a43ba736SRobert Mustacchi# 1178a43ba736SRobert Mustacchi# 6. For the year 2012, the dates of entry into winter time will be as follows: 1179a43ba736SRobert Mustacchi# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at 1180a43ba736SRobert Mustacchi# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 1181a43ba736SRobert Mustacchi# of the same day. 1182a43ba736SRobert Mustacchi# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, 1183a43ba736SRobert Mustacchi# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be 1184a43ba736SRobert Mustacchi# 01:00 on September 2. 1185a43ba736SRobert Mustacchi 1186a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-02-15): 1187a43ba736SRobert Mustacchi# According to several news sources, Chile has extended DST this year, 1188a43ba736SRobert Mustacchi# they will end DST later and start DST earlier than planned. They 1189a43ba736SRobert Mustacchi# hope to save energy. The new end date is 2013-04-28 00:00 and new 1190a43ba736SRobert Mustacchi# start date is 2013-09-08 00:00.... 1191a43ba736SRobert Mustacchi# http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm 1192a43ba736SRobert Mustacchi 11936f8e8937SDan McDonald# From José Miguel Garrido (2014-02-19): 11946f8e8937SDan McDonald# Today appeared in the Diario Oficial a decree amending the time change 11956f8e8937SDan McDonald# dates to 2014. 11966f8e8937SDan McDonald# DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) 11976f8e8937SDan McDonald# DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) 11986f8e8937SDan McDonald# http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf 11996f8e8937SDan McDonald 120056b82ca8SDan McDonald# From Eduardo Romero Urra (2015-03-03): 120156b82ca8SDan McDonald# Today has been published officially that Chile will use the DST time 120256b82ca8SDan McDonald# permanently until March 25 of 2017 120356b82ca8SDan McDonald# http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg 120456b82ca8SDan McDonald# 120556b82ca8SDan McDonald# From Paul Eggert (2015-03-03): 120656b82ca8SDan McDonald# For now, assume that the extension will persist indefinitely. 1207a43ba736SRobert Mustacchi 1208f63cc156SDan McDonald# From Juan Correa (2016-03-18): 1209f63cc156SDan McDonald# The decree regarding DST has been published in today's Official Gazette: 1210f63cc156SDan McDonald# http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ 1211f63cc156SDan McDonald# http://www.leychile.cl/Navegar?idNorma=1088502 1212f63cc156SDan McDonald# It does consider the second Saturday of May and August as the dates 1213f63cc156SDan McDonald# for the transition; and it lists DST dates until 2019, but I think 1214f63cc156SDan McDonald# this scheme will stick. 1215f63cc156SDan McDonald# 1216f63cc156SDan McDonald# From Paul Eggert (2016-03-18): 1217f63cc156SDan McDonald# For now, assume the pattern holds for the indefinite future. 1218f63cc156SDan McDonald# The decree says transitions occur at 24:00; in practice this appears 1219f63cc156SDan McDonald# to mean 24:00 mainland time, not 24:00 local time, so that Easter 1220f63cc156SDan McDonald# Island is always two hours behind the mainland. 1221f63cc156SDan McDonald 1222dafc4501SDan McDonald# From Juan Correa (2016-12-04): 1223dafc4501SDan McDonald# Magallanes region ... will keep DST (UTC -3) all year round.... 1224dafc4501SDan McDonald# http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx 1225dafc4501SDan McDonald# 1226dafc4501SDan McDonald# From Deborah Goldsmith (2017-01-19): 1227dafc4501SDan McDonald# http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf 1228dafc4501SDan McDonald# From Paul Eggert (2017-01-19): 1229dafc4501SDan McDonald# The above says the Magallanes change expires 2019-05-11 at 24:00, 1230dafc4501SDan McDonald# so in theory, they will revert to -04/-03 after that, which means 1231dafc4501SDan McDonald# they will switch from -03 to -04 one hour after Santiago does that day. 1232dafc4501SDan McDonald# For now, assume that they will not revert. 1233dafc4501SDan McDonald 12347c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1235*3508b934SYuri PankovRule Chile 1927 1931 - Sep 1 0:00 1:00 - 12367c478bd9Sstevel@tonic-gateRule Chile 1928 1932 - Apr 1 0:00 0 - 1237*3508b934SYuri PankovRule Chile 1968 only - Nov 3 4:00u 1:00 - 1238150c1068SrobbinRule Chile 1969 only - Mar 30 3:00u 0 - 1239*3508b934SYuri PankovRule Chile 1969 only - Nov 23 4:00u 1:00 - 1240150c1068SrobbinRule Chile 1970 only - Mar 29 3:00u 0 - 1241150c1068SrobbinRule Chile 1971 only - Mar 14 3:00u 0 - 1242*3508b934SYuri PankovRule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - 1243150c1068SrobbinRule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1244*3508b934SYuri PankovRule Chile 1973 only - Sep 30 4:00u 1:00 - 1245*3508b934SYuri PankovRule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - 1246150c1068SrobbinRule Chile 1987 only - Apr 12 3:00u 0 - 124756b82ca8SDan McDonaldRule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - 1248*3508b934SYuri PankovRule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - 1249*3508b934SYuri PankovRule Chile 1990 only - Sep 16 4:00u 1:00 - 1250150c1068SrobbinRule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1251*3508b934SYuri PankovRule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - 1252150c1068SrobbinRule Chile 1997 only - Mar 30 3:00u 0 - 1253150c1068SrobbinRule Chile 1998 only - Mar Sun>=9 3:00u 0 - 1254*3508b934SYuri PankovRule Chile 1998 only - Sep 27 4:00u 1:00 - 12557c478bd9Sstevel@tonic-gateRule Chile 1999 only - Apr 4 3:00u 0 - 1256*3508b934SYuri PankovRule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - 12578593320bSrobbinRule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 12588593320bSrobbin# N.B.: the end of March 29 in Chile is March 30 in Universal time, 12598593320bSrobbin# which is used below in specifying the transition. 12608593320bSrobbinRule Chile 2008 only - Mar 30 3:00u 0 - 1261d8ff9d22SNobutomo NakanoRule Chile 2009 only - Mar Sun>=9 3:00u 0 - 1262abaa65c8SYuri PankovRule Chile 2010 only - Apr Sun>=1 3:00u 0 - 1263abaa65c8SYuri PankovRule Chile 2011 only - May Sun>=2 3:00u 0 - 1264*3508b934SYuri PankovRule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - 1265f63cc156SDan McDonaldRule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - 1266*3508b934SYuri PankovRule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - 1267f63cc156SDan McDonaldRule Chile 2016 max - May Sun>=9 3:00u 0 - 1268*3508b934SYuri PankovRule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - 1269150c1068Srobbin# IATA SSIM anomalies: (1992-02) says 1992-03-14; 12707c478bd9Sstevel@tonic-gate# (1996-09) says 1998-03-08. Ignore these. 12717c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1272150c1068SrobbinZone America/Santiago -4:42:46 - LMT 1890 127356b82ca8SDan McDonald -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time 1274dafc4501SDan McDonald -5:00 - -05 1916 Jul 1 127556b82ca8SDan McDonald -4:42:46 - SMT 1918 Sep 10 1276dafc4501SDan McDonald -4:00 - -04 1919 Jul 1 127756b82ca8SDan McDonald -4:42:46 - SMT 1927 Sep 1 1278dafc4501SDan McDonald -5:00 Chile -05/-04 1932 Sep 1 1279dafc4501SDan McDonald -4:00 - -04 1942 Jun 1 1280dafc4501SDan McDonald -5:00 - -05 1942 Aug 1 1281dafc4501SDan McDonald -4:00 - -04 1946 Jul 15 1282dafc4501SDan McDonald -4:00 1:00 -03 1946 Sep 1 # central Chile 1283dafc4501SDan McDonald -4:00 - -04 1947 Apr 1 1284dafc4501SDan McDonald -5:00 - -05 1947 May 21 23:00 1285dafc4501SDan McDonald -4:00 Chile -04/-03 1286dafc4501SDan McDonaldZone America/Punta_Arenas -4:43:40 - LMT 1890 1287dafc4501SDan McDonald -4:42:46 - SMT 1910 Jan 10 1288dafc4501SDan McDonald -5:00 - -05 1916 Jul 1 1289dafc4501SDan McDonald -4:42:46 - SMT 1918 Sep 10 1290dafc4501SDan McDonald -4:00 - -04 1919 Jul 1 1291dafc4501SDan McDonald -4:42:46 - SMT 1927 Sep 1 1292dafc4501SDan McDonald -5:00 Chile -05/-04 1932 Sep 1 1293dafc4501SDan McDonald -4:00 - -04 1942 Jun 1 1294dafc4501SDan McDonald -5:00 - -05 1942 Aug 1 1295dafc4501SDan McDonald -4:00 - -04 1947 Apr 1 1296dafc4501SDan McDonald -5:00 - -05 1947 May 21 23:00 1297dafc4501SDan McDonald -4:00 Chile -04/-03 2016 Dec 4 1298dafc4501SDan McDonald -3:00 - -03 129956b82ca8SDan McDonaldZone Pacific/Easter -7:17:28 - LMT 1890 1300a68d064cSrobbin -7:17:28 - EMT 1932 Sep # Easter Mean Time 1301dafc4501SDan McDonald -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time 1302dafc4501SDan McDonald -6:00 Chile -06/-05 13037c478bd9Sstevel@tonic-gate# 13046f8e8937SDan McDonald# Salas y Gómez Island is uninhabited. 13056f8e8937SDan McDonald# Other Chilean locations, including Juan Fernández Is, Desventuradas Is, 13066f8e8937SDan McDonald# and Antarctic bases, are like America/Santiago. 13077c478bd9Sstevel@tonic-gate 130856b82ca8SDan McDonald# Antarctic base using South American rules 130956b82ca8SDan McDonald# (See the file 'antarctica' for more.) 131056b82ca8SDan McDonald# 131156b82ca8SDan McDonald# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) 131256b82ca8SDan McDonald# 131356b82ca8SDan McDonald# From Ethan Dicks (1996-10-06): 131456b82ca8SDan McDonald# It keeps the same time as Punta Arenas, Chile, because, just like us 131556b82ca8SDan McDonald# and the South Pole, that's the other end of their supply line.... 131656b82ca8SDan McDonald# I verified with someone who was there that since 1980, 131756b82ca8SDan McDonald# Palmer has followed Chile. Prior to that, before the Falklands War, 131856b82ca8SDan McDonald# Palmer used to be supplied from Argentina. 131956b82ca8SDan McDonald# 132056b82ca8SDan McDonald# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1321c2d5ab87SDan McDonaldZone Antarctica/Palmer 0 - -00 1965 1322dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 1323dafc4501SDan McDonald -3:00 Arg -03/-02 1982 May 1324dafc4501SDan McDonald -4:00 Chile -04/-03 2016 Dec 4 1325dafc4501SDan McDonald -3:00 - -03 132656b82ca8SDan McDonald 13277c478bd9Sstevel@tonic-gate# Colombia 1328a43ba736SRobert Mustacchi 13296f8e8937SDan McDonald# Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, 1330a43ba736SRobert Mustacchi# "A variation of fifteen minutes in the public clocks of Bogota is not rare." 1331a43ba736SRobert Mustacchi 13327c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1333*3508b934SYuri PankovRule CO 1992 only - May 3 0:00 1:00 - 13342f9aa4a7SrobbinRule CO 1993 only - Apr 4 0:00 0 - 13357c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1336a43ba736SRobert MustacchiZone America/Bogota -4:56:16 - LMT 1884 Mar 13 13376f8e8937SDan McDonald -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time 1338dafc4501SDan McDonald -5:00 CO -05/-04 13397c478bd9Sstevel@tonic-gate# Malpelo, Providencia, San Andres 13407c478bd9Sstevel@tonic-gate# no information; probably like America/Bogota 13417c478bd9Sstevel@tonic-gate 13426f8e8937SDan McDonald# Curaçao 1343a43ba736SRobert Mustacchi 13446f8e8937SDan McDonald# Milne gives 4:35:46.9 for Curaçao mean time; round to nearest. 13452f9aa4a7Srobbin# 1346a68d064cSrobbin# From Paul Eggert (2006-03-22): 13472f9aa4a7Srobbin# Shanks & Pottenger say that The Bottom and Philipsburg have been at 13482f9aa4a7Srobbin# -4:00 since standard time was introduced on 1912-03-02; and that 13492f9aa4a7Srobbin# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 13502f9aa4a7Srobbin# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 13516f8e8937SDan McDonald# Saba Island has been like Curaçao. 1352a68d064cSrobbin# This all predates our 1970 cutoff, though. 13532f9aa4a7Srobbin# 13546f8e8937SDan McDonald# By July 2007 Curaçao and St Maarten are planned to become 13552f9aa4a7Srobbin# associated states within the Netherlands, much like Aruba; 13562f9aa4a7Srobbin# Bonaire, Saba and St Eustatius would become directly part of the 13572f9aa4a7Srobbin# Netherlands as Kingdom Islands. This won't affect their time zones 13582f9aa4a7Srobbin# though, as far as we know. 1359a68d064cSrobbin# 13607c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13616f8e8937SDan McDonaldZone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad 1362dafc4501SDan McDonald -4:30 - -0430 1965 13637c478bd9Sstevel@tonic-gate -4:00 - AST 13647c478bd9Sstevel@tonic-gate 1365abaa65c8SYuri Pankov# From Arthur David Olson (2011-06-15): 1366a43ba736SRobert Mustacchi# use links for places with new iso3166 codes. 13676f8e8937SDan McDonald# The name "Lower Prince's Quarter" is both longer than fourteen characters 1368abaa65c8SYuri Pankov# and contains an apostrophe; use "Lower_Princes" below. 1369abaa65c8SYuri Pankov 1370a43ba736SRobert MustacchiLink America/Curacao America/Lower_Princes # Sint Maarten 1371a43ba736SRobert MustacchiLink America/Curacao America/Kralendijk # Caribbean Netherlands 1372abaa65c8SYuri Pankov 13737c478bd9Sstevel@tonic-gate# Ecuador 1374a68d064cSrobbin# 13756f8e8937SDan McDonald# Milne says the Central and South American Telegraph Company used -5:24:15. 1376a43ba736SRobert Mustacchi# 1377dafc4501SDan McDonald# From Alois Treindl (2016-12-15): 1378b654b02dSYuri Pankov# https://www.elcomercio.com/actualidad/hora-sixto-1993.html 1379dafc4501SDan McDonald# ... Whether the law applied also to Galápagos, I do not know. 1380dafc4501SDan McDonald# From Paul Eggert (2016-12-15): 1381b654b02dSYuri Pankov# https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html 1382dafc4501SDan McDonald# This says President Sixto Durán Ballén signed decree No. 285, which 1383dafc4501SDan McDonald# established DST from 1992-11-28 to 1993-02-05; it does not give transition 1384dafc4501SDan McDonald# times. The people called it "hora de Sixto" ("Sixto hour"). The change did 1385dafc4501SDan McDonald# not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics 1386dafc4501SDan McDonald# that included "Amanecía en mitad de la noche, los guaguas iban a clase sin 1387dafc4501SDan McDonald# sol" ("It was dawning in the middle of the night, the buses went to class 1388dafc4501SDan McDonald# without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" 1389dafc4501SDan McDonald# (Not one step back), the clocks went back in 1993 and the experiment was not 1390dafc4501SDan McDonald# repeated. For now, assume transitions were at 00:00 local time country-wide. 1391dafc4501SDan McDonald# 1392dafc4501SDan McDonald# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1393*3508b934SYuri PankovRule Ecuador 1992 only - Nov 28 0:00 1:00 - 1394dafc4501SDan McDonaldRule Ecuador 1993 only - Feb 5 0:00 0 - 1395a68d064cSrobbin# 13967c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13977c478bd9Sstevel@tonic-gateZone America/Guayaquil -5:19:20 - LMT 1890 13987c478bd9Sstevel@tonic-gate -5:14:00 - QMT 1931 # Quito Mean Time 1399dafc4501SDan McDonald -5:00 Ecuador -05/-04 14007c478bd9Sstevel@tonic-gateZone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 1401dafc4501SDan McDonald -5:00 - -05 1986 1402dafc4501SDan McDonald -6:00 Ecuador -06/-05 14037c478bd9Sstevel@tonic-gate 14047c478bd9Sstevel@tonic-gate# Falklands 14057c478bd9Sstevel@tonic-gate 14062f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 14072f9aa4a7Srobbin# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 14082f9aa4a7Srobbin# the IATA gives 1996-09-08. Go with Shanks & Pottenger. 14097c478bd9Sstevel@tonic-gate 14107c478bd9Sstevel@tonic-gate# From Falkland Islands Government Office, London (2001-01-22) 14116f8e8937SDan McDonald# via Jesper Nørgaard: 14127c478bd9Sstevel@tonic-gate# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 14137c478bd9Sstevel@tonic-gate# April 2001 and advance one hour to summer time at 2 am on Sunday 2 14147c478bd9Sstevel@tonic-gate# September. It is anticipated that the clocks will revert back at 2 14157c478bd9Sstevel@tonic-gate# am on Sunday 21 April 2002 and advance to summer time at 2 am on 14167c478bd9Sstevel@tonic-gate# Sunday 1 September. 14177c478bd9Sstevel@tonic-gate 14187c478bd9Sstevel@tonic-gate# From Rives McDow (2001-02-13): 14197c478bd9Sstevel@tonic-gate# 14207c478bd9Sstevel@tonic-gate# I have communicated several times with people there, and the last 14217c478bd9Sstevel@tonic-gate# time I had communications that was helpful was in 1998. Here is 14227c478bd9Sstevel@tonic-gate# what was said then: 14237c478bd9Sstevel@tonic-gate# 14247c478bd9Sstevel@tonic-gate# "The general rule was that Stanley used daylight saving and the Camp 14257c478bd9Sstevel@tonic-gate# did not. However for various reasons many people in the Camp have 14267c478bd9Sstevel@tonic-gate# started to use daylight saving (known locally as 'Stanley Time') 14277c478bd9Sstevel@tonic-gate# There is no rule as to who uses daylight saving - it is a matter of 14287c478bd9Sstevel@tonic-gate# personal choice and so it is impossible to draw a map showing who 14297c478bd9Sstevel@tonic-gate# uses it and who does not. Any list would be out of date as soon as 14307c478bd9Sstevel@tonic-gate# it was produced. This year daylight saving ended on April 18/19th 14317c478bd9Sstevel@tonic-gate# and started again on September 12/13th. I do not know what the rule 14327c478bd9Sstevel@tonic-gate# is, but can find out if you like. We do not change at the same time 14337c478bd9Sstevel@tonic-gate# as UK or Chile." 14347c478bd9Sstevel@tonic-gate# 14357c478bd9Sstevel@tonic-gate# I did have in my notes that the rule was "Second Saturday in Sep at 14367c478bd9Sstevel@tonic-gate# 0:00 until third Saturday in Apr at 0:00". I think that this does 14377c478bd9Sstevel@tonic-gate# not agree in some cases with Shanks; is this true? 14387c478bd9Sstevel@tonic-gate# 14397c478bd9Sstevel@tonic-gate# Also, there is no mention in the list that some areas in the 14407c478bd9Sstevel@tonic-gate# Falklands do not use DST. I have found in my communications there 14417c478bd9Sstevel@tonic-gate# that these areas are on the western half of East Falkland and all of 14427c478bd9Sstevel@tonic-gate# West Falkland. Stanley is the only place that consistently observes 14437c478bd9Sstevel@tonic-gate# DST. Again, as in other places in the world, the farmers don't like 14447c478bd9Sstevel@tonic-gate# it. West Falkland is almost entirely sheep farmers. 14457c478bd9Sstevel@tonic-gate# 14467c478bd9Sstevel@tonic-gate# I know one lady there that keeps a list of which farm keeps DST and 14477c478bd9Sstevel@tonic-gate# which doesn't each year. She runs a shop in Stanley, and says that 14487c478bd9Sstevel@tonic-gate# the list changes each year. She uses it to communicate to her 14497c478bd9Sstevel@tonic-gate# customers, catching them when they are home for lunch or dinner. 14507c478bd9Sstevel@tonic-gate 14517c478bd9Sstevel@tonic-gate# From Paul Eggert (2001-03-05): 14527c478bd9Sstevel@tonic-gate# For now, we'll just record the time in Stanley, since we have no 14537c478bd9Sstevel@tonic-gate# better info. 14547c478bd9Sstevel@tonic-gate 1455abaa65c8SYuri Pankov# From Steffen Thorsen (2011-04-01): 1456abaa65c8SYuri Pankov# The Falkland Islands will not turn back clocks this winter, but stay on 1457abaa65c8SYuri Pankov# daylight saving time. 1458abaa65c8SYuri Pankov# 1459abaa65c8SYuri Pankov# One source: 1460abaa65c8SYuri Pankov# http://www.falklandnews.com/public/story.cfm?get=5914&source=3 1461abaa65c8SYuri Pankov# 1462abaa65c8SYuri Pankov# We have gotten this confirmed by a clerk of the legislative assembly: 1463abaa65c8SYuri Pankov# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the 1464abaa65c8SYuri Pankov# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 1465abaa65c8SYuri Pankov# hours) on the first Sunday of September at 0200hrs. 1466abaa65c8SYuri Pankov# 1467abaa65c8SYuri Pankov# IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands 1468abaa65c8SYuri Pankov# will not revert to local mean time, but clocks will remain on Summer 1469abaa65c8SYuri Pankov# time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term 1470abaa65c8SYuri Pankov# change to local time following the trial period will be notified. 1471a43ba736SRobert Mustacchi# 1472a43ba736SRobert Mustacchi# From Andrew Newman (2012-02-24) 1473a43ba736SRobert Mustacchi# A letter from Justin McPhee, Chief Executive, 1474a43ba736SRobert Mustacchi# Cable & Wireless Falkland Islands (dated 2012-02-22) 1475a43ba736SRobert Mustacchi# states... 1476a43ba736SRobert Mustacchi# The current Atlantic/Stanley entry under South America expects the 1477a43ba736SRobert Mustacchi# clocks to go back to standard Falklands Time (FKT) on the 15th April. 1478a43ba736SRobert Mustacchi# The database entry states that in 2011 Stanley was staying on fixed 1479a43ba736SRobert Mustacchi# summer time on a trial basis only. FIG need to contact IANA and/or 1480a43ba736SRobert Mustacchi# the maintainers of the database to inform them we're adopting 1481a43ba736SRobert Mustacchi# the same policy this year and suggest recommendations for future years. 1482a43ba736SRobert Mustacchi# 1483*3508b934SYuri Pankov# For now we will assume permanent -03 for the Falklands 1484a43ba736SRobert Mustacchi# until advised differently (to apply for 2012 and beyond, after the 2011 1485a43ba736SRobert Mustacchi# experiment was apparently successful.) 14867c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1487*3508b934SYuri PankovRule Falk 1937 1938 - Sep lastSun 0:00 1:00 - 14887c478bd9Sstevel@tonic-gateRule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 1489*3508b934SYuri PankovRule Falk 1939 only - Oct 1 0:00 1:00 - 1490*3508b934SYuri PankovRule Falk 1940 1942 - Sep lastSun 0:00 1:00 - 14917c478bd9Sstevel@tonic-gateRule Falk 1943 only - Jan 1 0:00 0 - 1492*3508b934SYuri PankovRule Falk 1983 only - Sep lastSun 0:00 1:00 - 14937c478bd9Sstevel@tonic-gateRule Falk 1984 1985 - Apr lastSun 0:00 0 - 1494*3508b934SYuri PankovRule Falk 1984 only - Sep 16 0:00 1:00 - 1495*3508b934SYuri PankovRule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - 14967c478bd9Sstevel@tonic-gateRule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 1497abaa65c8SYuri PankovRule Falk 2001 2010 - Apr Sun>=15 2:00 0 - 1498*3508b934SYuri PankovRule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - 14997c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15007c478bd9Sstevel@tonic-gateZone Atlantic/Stanley -3:51:24 - LMT 1890 15016f8e8937SDan McDonald -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 1502dafc4501SDan McDonald -4:00 Falk -04/-03 1983 May 1503dafc4501SDan McDonald -3:00 Falk -03/-02 1985 Sep 15 1504dafc4501SDan McDonald -4:00 Falk -04/-03 2010 Sep 5 2:00 1505dafc4501SDan McDonald -3:00 - -03 15067c478bd9Sstevel@tonic-gate 15077c478bd9Sstevel@tonic-gate# French Guiana 15087c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15097c478bd9Sstevel@tonic-gateZone America/Cayenne -3:29:20 - LMT 1911 Jul 1510dafc4501SDan McDonald -4:00 - -04 1967 Oct 1511dafc4501SDan McDonald -3:00 - -03 15127c478bd9Sstevel@tonic-gate 15137c478bd9Sstevel@tonic-gate# Guyana 15147c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15156f8e8937SDan McDonaldZone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 1516dafc4501SDan McDonald -3:45 - -0345 1975 Jul 31 1517dafc4501SDan McDonald -3:00 - -03 1991 15187c478bd9Sstevel@tonic-gate# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 1519dafc4501SDan McDonald -4:00 - -04 15207c478bd9Sstevel@tonic-gate 15217c478bd9Sstevel@tonic-gate# Paraguay 1522a43ba736SRobert Mustacchi# 15232f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 15246f8e8937SDan McDonald# Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, 15256f8e8937SDan McDonald# and autumn transitions are 00:00 -> 23:00. Go with pre-1999 15267c478bd9Sstevel@tonic-gate# editions of Shanks, and with the IATA, who say transitions occur at 00:00. 1527a43ba736SRobert Mustacchi# 1528a43ba736SRobert Mustacchi# From Waldemar Villamayor-Venialbo (2013-09-20): 1529a43ba736SRobert Mustacchi# No time of the day is established for the adjustment, so people normally 1530a43ba736SRobert Mustacchi# adjust their clocks at 0 hour of the given dates. 1531a43ba736SRobert Mustacchi# 15327c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1533*3508b934SYuri PankovRule Para 1975 1988 - Oct 1 0:00 1:00 - 15347c478bd9Sstevel@tonic-gateRule Para 1975 1978 - Mar 1 0:00 0 - 15357c478bd9Sstevel@tonic-gateRule Para 1979 1991 - Apr 1 0:00 0 - 1536*3508b934SYuri PankovRule Para 1989 only - Oct 22 0:00 1:00 - 1537*3508b934SYuri PankovRule Para 1990 only - Oct 1 0:00 1:00 - 1538*3508b934SYuri PankovRule Para 1991 only - Oct 6 0:00 1:00 - 15397c478bd9Sstevel@tonic-gateRule Para 1992 only - Mar 1 0:00 0 - 1540*3508b934SYuri PankovRule Para 1992 only - Oct 5 0:00 1:00 - 15417c478bd9Sstevel@tonic-gateRule Para 1993 only - Mar 31 0:00 0 - 1542*3508b934SYuri PankovRule Para 1993 1995 - Oct 1 0:00 1:00 - 15437c478bd9Sstevel@tonic-gateRule Para 1994 1995 - Feb lastSun 0:00 0 - 15447c478bd9Sstevel@tonic-gateRule Para 1996 only - Mar 1 0:00 0 - 15457c478bd9Sstevel@tonic-gate# IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 15467c478bd9Sstevel@tonic-gate# From Steffen Thorsen (2000-10-02): 15477c478bd9Sstevel@tonic-gate# I have three independent reports that Paraguay changed to DST this Sunday 15487c478bd9Sstevel@tonic-gate# (10-01). 15497c478bd9Sstevel@tonic-gate# 15507c478bd9Sstevel@tonic-gate# Translated by Gwillim Law (2001-02-27) from 15516f8e8937SDan McDonald# Noticias, a daily paper in Asunción, Paraguay (2000-10-01): 15526f8e8937SDan McDonald# http://www.diarionoticias.com.py/011000/nacional/naciona1.htm 15537c478bd9Sstevel@tonic-gate# Starting at 0:00 today, the clock will be set forward 60 minutes, in 15547c478bd9Sstevel@tonic-gate# fulfillment of Decree No. 7,273 of the Executive Power.... The time change 15557c478bd9Sstevel@tonic-gate# system has been operating for several years. Formerly there was a separate 15567c478bd9Sstevel@tonic-gate# decree each year; the new law has the same effect, but permanently. Every 15577c478bd9Sstevel@tonic-gate# year, the time will change on the first Sunday of October; likewise, the 15587c478bd9Sstevel@tonic-gate# clock will be set back on the first Sunday of March. 15597c478bd9Sstevel@tonic-gate# 1560*3508b934SYuri PankovRule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - 15612f9aa4a7Srobbin# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 15627c478bd9Sstevel@tonic-gateRule Para 1997 only - Feb lastSun 0:00 0 - 15632f9aa4a7Srobbin# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 15647c478bd9Sstevel@tonic-gate# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 15657c478bd9Sstevel@tonic-gateRule Para 1998 2001 - Mar Sun>=1 0:00 0 - 15667c478bd9Sstevel@tonic-gate# From Rives McDow (2002-02-28): 156756b82ca8SDan McDonald# A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the 15687c478bd9Sstevel@tonic-gate# dst method to be from the first Sunday in September to the first Sunday in 15697c478bd9Sstevel@tonic-gate# April. 157080868c53SrobbinRule Para 2002 2004 - Apr Sun>=1 0:00 0 - 1571*3508b934SYuri PankovRule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - 157280868c53Srobbin# 15736f8e8937SDan McDonald# From Jesper Nørgaard Welen (2005-01-02): 157480868c53Srobbin# There are several sources that claim that Paraguay made 157580868c53Srobbin# a timezone rule change in autumn 2004. 157680868c53Srobbin# From Steffen Thorsen (2005-01-05): 1577150c1068Srobbin# Decree 1,867 (2004-03-05) 15786f8e8937SDan McDonald# From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) 15796f8e8937SDan McDonald# http://www.presidencia.gov.py/decretos/D1867.pdf 1580*3508b934SYuri PankovRule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - 1581d8ff9d22SNobutomo NakanoRule Para 2005 2009 - Mar Sun>=8 0:00 0 - 15826f8e8937SDan McDonald# From Carlos Raúl Perasso (2010-02-18): 15836f8e8937SDan McDonald# By decree number 3958 issued yesterday 1584d8ff9d22SNobutomo Nakano# http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf 1585d8ff9d22SNobutomo Nakano# Paraguay changes its DST schedule, postponing the March rule to April and 1586d8ff9d22SNobutomo Nakano# modifying the October date. The decree reads: 1587d8ff9d22SNobutomo Nakano# ... 1588d8ff9d22SNobutomo Nakano# Art. 1. It is hereby established that from the second Sunday of the month of 1589d8ff9d22SNobutomo Nakano# April of this year (2010), the official time is to be set back 60 minutes, 1590d8ff9d22SNobutomo Nakano# and that on the first Sunday of the month of October, it is to be set 1591d8ff9d22SNobutomo Nakano# forward 60 minutes, in all the territory of the Paraguayan Republic. 1592d8ff9d22SNobutomo Nakano# ... 1593*3508b934SYuri PankovRule Para 2010 max - Oct Sun>=1 0:00 1:00 - 1594a43ba736SRobert MustacchiRule Para 2010 2012 - Apr Sun>=8 0:00 0 - 1595a43ba736SRobert Mustacchi# 1596a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-03-07): 1597a43ba736SRobert Mustacchi# Paraguay will end DST on 2013-03-24 00:00.... 1598a43ba736SRobert Mustacchi# http://www.ande.gov.py/interna.php?id=1075 1599a43ba736SRobert Mustacchi# 16006f8e8937SDan McDonald# From Carlos Raúl Perasso (2013-03-15): 1601a43ba736SRobert Mustacchi# The change in Paraguay is now final. Decree number 10780 1602a43ba736SRobert Mustacchi# http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf 16036f8e8937SDan McDonald# From Carlos Raúl Perasso (2014-02-28): 16046f8e8937SDan McDonald# Decree 1264 can be found at: 16056f8e8937SDan McDonald# http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf 1606a43ba736SRobert MustacchiRule Para 2013 max - Mar Sun>=22 0:00 0 - 16077c478bd9Sstevel@tonic-gate 16087c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16097c478bd9Sstevel@tonic-gateZone America/Asuncion -3:50:40 - LMT 1890 16106f8e8937SDan McDonald -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time 1611dafc4501SDan McDonald -4:00 - -04 1972 Oct 1612dafc4501SDan McDonald -3:00 - -03 1974 Apr 1613dafc4501SDan McDonald -4:00 Para -04/-03 16147c478bd9Sstevel@tonic-gate 16157c478bd9Sstevel@tonic-gate# Peru 16167c478bd9Sstevel@tonic-gate# 16176f8e8937SDan McDonald# From Evelyn C. Leeper via Mark Brader (2003-10-26) 16186f8e8937SDan McDonald# <news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net>: 161980868c53Srobbin# When we were in Peru in 1985-1986, they apparently switched over 16207c478bd9Sstevel@tonic-gate# sometime between December 29 and January 3 while we were on the Amazon. 16217c478bd9Sstevel@tonic-gate# 16222f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 16232f9aa4a7Srobbin# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 16247c478bd9Sstevel@tonic-gate 16257c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1626*3508b934SYuri PankovRule Peru 1938 only - Jan 1 0:00 1:00 - 16277c478bd9Sstevel@tonic-gateRule Peru 1938 only - Apr 1 0:00 0 - 1628*3508b934SYuri PankovRule Peru 1938 1939 - Sep lastSun 0:00 1:00 - 16297c478bd9Sstevel@tonic-gateRule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 1630*3508b934SYuri PankovRule Peru 1986 1987 - Jan 1 0:00 1:00 - 16317c478bd9Sstevel@tonic-gateRule Peru 1986 1987 - Apr 1 0:00 0 - 1632*3508b934SYuri PankovRule Peru 1990 only - Jan 1 0:00 1:00 - 16337c478bd9Sstevel@tonic-gateRule Peru 1990 only - Apr 1 0:00 0 - 16342f9aa4a7Srobbin# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 1635*3508b934SYuri PankovRule Peru 1994 only - Jan 1 0:00 1:00 - 16367c478bd9Sstevel@tonic-gateRule Peru 1994 only - Apr 1 0:00 0 - 16377c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16387c478bd9Sstevel@tonic-gateZone America/Lima -5:08:12 - LMT 1890 16397c478bd9Sstevel@tonic-gate -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 1640dafc4501SDan McDonald -5:00 Peru -05/-04 16417c478bd9Sstevel@tonic-gate 16427c478bd9Sstevel@tonic-gate# South Georgia 16437c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16446f8e8937SDan McDonaldZone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 1645dafc4501SDan McDonald -2:00 - -02 16467c478bd9Sstevel@tonic-gate 16477c478bd9Sstevel@tonic-gate# South Sandwich Is 16487c478bd9Sstevel@tonic-gate# uninhabited; scientific personnel have wintered 16497c478bd9Sstevel@tonic-gate 16507c478bd9Sstevel@tonic-gate# Suriname 16517c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16527c478bd9Sstevel@tonic-gateZone America/Paramaribo -3:40:40 - LMT 1911 16537c478bd9Sstevel@tonic-gate -3:40:52 - PMT 1935 # Paramaribo Mean Time 16546f8e8937SDan McDonald -3:40:36 - PMT 1945 Oct # The capital moved? 1655dafc4501SDan McDonald -3:30 - -0330 1984 Oct 1656dafc4501SDan McDonald -3:00 - -03 16577c478bd9Sstevel@tonic-gate 16587c478bd9Sstevel@tonic-gate# Trinidad and Tobago 16597c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16607c478bd9Sstevel@tonic-gateZone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 16617c478bd9Sstevel@tonic-gate -4:00 - AST 16627c478bd9Sstevel@tonic-gate 16636f8e8937SDan McDonald# These all agree with Trinidad and Tobago since 1970. 1664a43ba736SRobert MustacchiLink America/Port_of_Spain America/Anguilla 166556b82ca8SDan McDonaldLink America/Port_of_Spain America/Antigua 1666a43ba736SRobert MustacchiLink America/Port_of_Spain America/Dominica 1667a43ba736SRobert MustacchiLink America/Port_of_Spain America/Grenada 1668a43ba736SRobert MustacchiLink America/Port_of_Spain America/Guadeloupe 16696f8e8937SDan McDonaldLink America/Port_of_Spain America/Marigot # St Martin (French part) 1670a43ba736SRobert MustacchiLink America/Port_of_Spain America/Montserrat 16716f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Barthelemy # St Barthélemy 16726f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Kitts # St Kitts & Nevis 1673a43ba736SRobert MustacchiLink America/Port_of_Spain America/St_Lucia 16746f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Thomas # Virgin Islands (US) 1675a43ba736SRobert MustacchiLink America/Port_of_Spain America/St_Vincent 16766f8e8937SDan McDonaldLink America/Port_of_Spain America/Tortola # Virgin Islands (UK) 1677a43ba736SRobert Mustacchi 16787c478bd9Sstevel@tonic-gate# Uruguay 167980868c53Srobbin# From Paul Eggert (1993-11-18): 16807c478bd9Sstevel@tonic-gate# Uruguay wins the prize for the strangest peacetime manipulation of the rules. 1681*3508b934SYuri Pankov# 1682*3508b934SYuri Pankov# From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael 1683*3508b934SYuri Pankov# Deckers (2018-02-20): 1684*3508b934SYuri Pankov# ... At least they kept good records... 1685*3508b934SYuri Pankov# 1686*3508b934SYuri Pankov# http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 1687*3508b934SYuri Pankov# Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and 1688*3508b934SYuri Pankov# Meteorology Service of the Uruguayan Navy, seems to give many transitions 1689*3508b934SYuri Pankov# with greater clarity than we've had before. It directly references many laws 1690*3508b934SYuri Pankov# and decrees which are, in turn, referenced below. They can be viewed in the 1691*3508b934SYuri Pankov# public archives of the Diario Oficial (in Spanish) at 1692*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/ 1693*3508b934SYuri Pankov# 1694*3508b934SYuri Pankov# Ley No. 3920 of 1908-06-10 placed the determination of legal time under the 1695*3508b934SYuri Pankov# auspices of the National Institute for the Prediction of Time. It is unclear 1696*3508b934SYuri Pankov# exactly what offset was used during this period, though Ley No. 7200 of 1697*3508b934SYuri Pankov# 1920-04-23 used the Observatory of the National Meteorological Institute in 1698*3508b934SYuri Pankov# Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, 1699*3508b934SYuri Pankov# retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, 1700*3508b934SYuri Pankov# resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on 1701*3508b934SYuri Pankov# page 725 of the Proceedings of the Second Pan-American Scientific Congress, 1702*3508b934SYuri Pankov# 1915-1916) was in use, and merely became official from 1908-06-10. 1703*3508b934SYuri Pankov# https://www.impo.com.uy/diariooficial/1908/06/18/12 1704*3508b934SYuri Pankov# https://www.impo.com.uy/diariooficial/1920/04/27/9 1705*3508b934SYuri Pankov# 1706*3508b934SYuri Pankov# Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced 1707*3508b934SYuri Pankov# by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 1708*3508b934SYuri Pankov# minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the 1709*3508b934SYuri Pankov# National Council of Administration the same day, published directly below the 1710*3508b934SYuri Pankov# law in the Diario Oficial, specified the first transition to be 1923-09-30 1711*3508b934SYuri Pankov# 24:00. This effectively established standard time at UT-03:30 with 30 1712*3508b934SYuri Pankov# minutes DST. Assume transitions at 24:00 on the specified days until Ley No. 1713*3508b934SYuri Pankov# 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other 1714*3508b934SYuri Pankov# provisions which oppose" it, resulting in year-round UT-03:30; a Resolución 1715*3508b934SYuri Pankov# of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it 1716*3508b934SYuri Pankov# would have been under the previous law. 1717*3508b934SYuri Pankov# https://www.impo.com.uy/diariooficial/1923/07/02/2 1718*3508b934SYuri Pankov# https://www.impo.com.uy/diariooficial/1926/03/10/2 1719*3508b934SYuri Pankov# https://www.impo.com.uy/diariooficial/1926/03/18/2 1720*3508b934SYuri Pankov# 17217c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1722*3508b934SYuri PankovRule Uruguay 1923 1925 - Oct 1 0:00 0:30 - 17237c478bd9Sstevel@tonic-gateRule Uruguay 1924 1926 - Apr 1 0:00 0 - 1724*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1725*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1933/10/27/6 1726*3508b934SYuri Pankov# 1727*3508b934SYuri Pankov# It appears Ley No. 9122 of 1933 was never published as such in the Diario 1728*3508b934SYuri Pankov# Oficial, but instead appeared as Document 26 in the Diario on Friday 1729*3508b934SYuri Pankov# 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of 1730*3508b934SYuri Pankov# National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the 1731*3508b934SYuri Pankov# last Sunday of October...until the last Saturday of March." In accordance 1732*3508b934SYuri Pankov# with this provision, the first transition was explicitly specified in Article 1733*3508b934SYuri Pankov# 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 1734*3508b934SYuri Pankov# at 00:00. Assume transitions at 00:00 Sunday throughout. 1735*3508b934SYuri Pankov# 1736*3508b934SYuri Pankov# Departing from the matter-of-fact nature of previous timekeeping laws, the 1737*3508b934SYuri Pankov# 1933 decree "consider[s] the advantages of...the advance of legal time": 1738*3508b934SYuri Pankov# 1739*3508b934SYuri Pankov# "Whereas: The measure adopted by almost all nations at the time of the last 1740*3508b934SYuri Pankov# World War still persists in North America and Europe, precisely because of 1741*3508b934SYuri Pankov# the economic, hygienic, and social advantages derived from such an 1742*3508b934SYuri Pankov# emergency measure... 1743*3508b934SYuri Pankov# 1744*3508b934SYuri Pankov# Whereas: The advance of the legal time during the summer seasons, by 1745*3508b934SYuri Pankov# displacing social activity near sunrise, favors the citizen populations 1746*3508b934SYuri Pankov# and especially the society that creates and works..." 1747*3508b934SYuri Pankov# 1748*3508b934SYuri Pankov# It further specified that "necessary measures" be taken to ensure that 1749*3508b934SYuri Pankov# "public spectacles finish, in general, before [01:00]." 1750*3508b934SYuri PankovRule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - 1751*3508b934SYuri PankovRule Uruguay 1934 1941 - Mar lastSat 24:00 0 - 1752*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1753*3508b934SYuri Pankov# Most of the Rules below, and their contemporaneous Zone lines, have been 1754*3508b934SYuri Pankov# updated simply to match the Almanaque 2018. Although the document does not 1755*3508b934SYuri Pankov# list exact transition times, midnight transitions were already present in our 1756*3508b934SYuri Pankov# data here for all transitions through 2004-09, and this is both consistent 1757*3508b934SYuri Pankov# with prior transitions and verified in several decrees marked below between 1758*3508b934SYuri Pankov# 1939-09 and 2004-09, wherein the relevant text was typically of the form: 1759*3508b934SYuri Pankov# 1760*3508b934SYuri Pankov# "From 0 hours on [date], the legal time of the entire Republic will be... 1761*3508b934SYuri Pankov# 1762*3508b934SYuri Pankov# In accordance with [the preceding], on [previous date] at 24 hours, all 1763*3508b934SYuri Pankov# clocks throughout the Republic will be [advanced/retarded] by..." 1764*3508b934SYuri Pankov# 1765*3508b934SYuri Pankov# It is possible that there is greater specificity to be found for the Rules 1766*3508b934SYuri Pankov# below, but it is buried in no fewer than 40 different decrees individually 1767*3508b934SYuri Pankov# referenced by the Almanaque for the period from 1939-09 to 2014-09. 1768*3508b934SYuri Pankov# Four-fifths of these were promulgated less than two weeks before taking 1769*3508b934SYuri Pankov# effect; more than half within a week and none more than 5 weeks. Only the 1770*3508b934SYuri Pankov# handful with comments below have been checked with any thoroughness. 1771*3508b934SYuri PankovRule Uruguay 1939 only - Oct 1 0:00 0:30 - 1772*3508b934SYuri PankovRule Uruguay 1940 only - Oct 27 0:00 0:30 - 1773*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1774*3508b934SYuri Pankov# Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified 1775*3508b934SYuri Pankov# UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". 1776*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1941/08/04/1 1777*3508b934SYuri PankovRule Uruguay 1941 only - Aug 1 0:00 0:30 - 1778*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1779*3508b934SYuri Pankov# Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified 1780*3508b934SYuri Pankov# further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks 1781*3508b934SYuri Pankov# never went back to UT-03:30 thereafter, this is modeled as advancing standard 1782*3508b934SYuri Pankov# time by 30 minutes to UT-03, while retaining 30 minutes of DST. 1783*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1942/12/16/3 1784*3508b934SYuri PankovRule Uruguay 1942 only - Dec 14 0:00 0:30 - 17857c478bd9Sstevel@tonic-gateRule Uruguay 1943 only - Mar 14 0:00 0 - 1786*3508b934SYuri PankovRule Uruguay 1959 only - May 24 0:00 0:30 - 17877c478bd9Sstevel@tonic-gateRule Uruguay 1959 only - Nov 15 0:00 0 - 1788*3508b934SYuri PankovRule Uruguay 1960 only - Jan 17 0:00 1:00 - 17897c478bd9Sstevel@tonic-gateRule Uruguay 1960 only - Mar 6 0:00 0 - 1790*3508b934SYuri PankovRule Uruguay 1965 only - Apr 4 0:00 1:00 - 17917c478bd9Sstevel@tonic-gateRule Uruguay 1965 only - Sep 26 0:00 0 - 1792*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1793*3508b934SYuri Pankov# Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the 1794*3508b934SYuri Pankov# day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. 1795*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1968/05/30/5 1796*3508b934SYuri PankovRule Uruguay 1968 only - May 27 0:00 0:30 - 1797*3508b934SYuri PankovRule Uruguay 1968 only - Dec 1 0:00 0 - 1798*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1799*3508b934SYuri Pankov# Decreto 188/970 of 1970-04-23 instituted restrictions on electricity 1800*3508b934SYuri Pankov# consumption "as a consequence of the current rainfall regime in the country". 1801*3508b934SYuri Pankov# Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. 1802*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1970/04/29/4 1803*3508b934SYuri PankovRule Uruguay 1970 only - Apr 25 0:00 1:00 - 1804*3508b934SYuri PankovRule Uruguay 1970 only - Jun 14 0:00 0 - 1805*3508b934SYuri PankovRule Uruguay 1972 only - Apr 23 0:00 1:00 - 1806*3508b934SYuri PankovRule Uruguay 1972 only - Jul 16 0:00 0 - 1807*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1808*3508b934SYuri Pankov# Decreto 29/974 of 1974-01-11, citing "the international rise in the price of 1809*3508b934SYuri Pankov# oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of 1810*3508b934SYuri Pankov# 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 1811*3508b934SYuri Pankov# minutes followed in Decreto 679/974 of 1974-08-29. 1812*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1974/01/22/11 1813*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1974/03/14/3 1814*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1974/09/04/6 1815*3508b934SYuri PankovRule Uruguay 1974 only - Jan 13 0:00 1:30 - 1816*3508b934SYuri PankovRule Uruguay 1974 only - Mar 10 0:00 0:30 - 1817*3508b934SYuri PankovRule Uruguay 1974 only - Sep 1 0:00 0 - 1818*3508b934SYuri PankovRule Uruguay 1974 only - Dec 22 0:00 1:00 - 1819*3508b934SYuri PankovRule Uruguay 1975 only - Mar 30 0:00 0 - 1820*3508b934SYuri PankovRule Uruguay 1976 only - Dec 19 0:00 1:00 - 1821*3508b934SYuri PankovRule Uruguay 1977 only - Mar 6 0:00 0 - 1822*3508b934SYuri PankovRule Uruguay 1977 only - Dec 4 0:00 1:00 - 1823*3508b934SYuri PankovRule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - 1824*3508b934SYuri PankovRule Uruguay 1978 only - Dec 17 0:00 1:00 - 1825*3508b934SYuri PankovRule Uruguay 1979 only - Apr 29 0:00 1:00 - 1826*3508b934SYuri PankovRule Uruguay 1980 only - Mar 16 0:00 0 - 1827*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1828*3508b934SYuri Pankov# Decreto 725/987 of 1987-12-04 cited "better use of national tourist 1829*3508b934SYuri Pankov# attractions" to advance clocks one hour from Monday 1987-12-14 00:00. 1830*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/1988/01/25/1 1831*3508b934SYuri PankovRule Uruguay 1987 only - Dec 14 0:00 1:00 - 1832*3508b934SYuri PankovRule Uruguay 1988 only - Feb 28 0:00 0 - 1833*3508b934SYuri PankovRule Uruguay 1988 only - Dec 11 0:00 1:00 - 1834*3508b934SYuri PankovRule Uruguay 1989 only - Mar 5 0:00 0 - 1835*3508b934SYuri PankovRule Uruguay 1989 only - Oct 29 0:00 1:00 - 1836*3508b934SYuri PankovRule Uruguay 1990 only - Feb 25 0:00 0 - 1837*3508b934SYuri Pankov# From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): 1838*3508b934SYuri Pankov# IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the 1839*3508b934SYuri Pankov# 1992/1993 season appears to be the first in over half a century where DST 1840*3508b934SYuri Pankov# both began and ended pursuant to the same decree. 1841*3508b934SYuri PankovRule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - 1842*3508b934SYuri PankovRule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - 1843*3508b934SYuri PankovRule Uruguay 1992 only - Oct 18 0:00 1:00 - 18447c478bd9Sstevel@tonic-gateRule Uruguay 1993 only - Feb 28 0:00 0 - 18457c478bd9Sstevel@tonic-gate# From Eduardo Cota (2004-09-20): 18466f8e8937SDan McDonald# The Uruguayan government has decreed a change in the local time.... 1847*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1848*3508b934SYuri Pankov# Decreto 328/004 of 2004-09-15. 1849*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 1850*3508b934SYuri PankovRule Uruguay 2004 only - Sep 19 0:00 1:00 - 185180868c53Srobbin# From Steffen Thorsen (2005-03-11): 185280868c53Srobbin# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 185380868c53Srobbin# save energy ... it was postponed two weeks.... 1854*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1855*3508b934SYuri Pankov# This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous 1856*3508b934SYuri Pankov# reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending 1857*3508b934SYuri Pankov# Decreto 328/004: 1858*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 1859*3508b934SYuri Pankov# The original decree specified a transition of 2005-03-12 24:00, but the new 1860*3508b934SYuri Pankov# one specified 2005-03-27 02:00. 186180868c53SrobbinRule Uruguay 2005 only - Mar 27 2:00 0 - 186280868c53Srobbin# From Eduardo Cota (2005-09-27): 1863*3508b934SYuri Pankov# ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, 1864*3508b934SYuri Pankov# official time in Uruguay will be at GMT -2. 1865*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1866*3508b934SYuri Pankov# Decreto 318/005 of 2005-09-19. 1867*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 1868*3508b934SYuri PankovRule Uruguay 2005 only - Oct 9 2:00 1:00 - 1869*3508b934SYuri PankovRule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - 1870*3508b934SYuri Pankov# From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): 1871*3508b934SYuri Pankov# Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday 1872*3508b934SYuri Pankov# of October at 02:00 through the second Sunday of March at 02:00. Almanaque 1873*3508b934SYuri Pankov# 2018 appears to have a few typoed dates through this period; ignore them. 1874*3508b934SYuri Pankov# http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 1875*3508b934SYuri PankovRule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - 187656b82ca8SDan McDonald# From Steffen Thorsen (2015-06-30): 187756b82ca8SDan McDonald# ... it looks like they will not be using DST the coming summer: 187856b82ca8SDan McDonald# http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 187956b82ca8SDan McDonald# http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ 188056b82ca8SDan McDonald# From Paul Eggert (2015-06-30): 188156b82ca8SDan McDonald# Apparently restaurateurs complained that DST caused people to go to the beach 188256b82ca8SDan McDonald# instead of out to dinner. 188356b82ca8SDan McDonald# From Pablo Camargo (2015-07-13): 188456b82ca8SDan McDonald# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf 1885*3508b934SYuri Pankov# From Tim Parenti (2018-02-15): 1886*3508b934SYuri Pankov# Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. 1887dafc4501SDan McDonald 1888dafc4501SDan McDonald# This Zone can be simplified once we assume zic %z. 1889*3508b934SYuri PankovZone America/Montevideo -3:44:51 - LMT 1908 Jun 10 1890*3508b934SYuri Pankov -3:44:51 - MMT 1920 May 1 # Montevideo MT 1891*3508b934SYuri Pankov -4:00 - -04 1923 Oct 1 1892dafc4501SDan McDonald -3:30 Uruguay -0330/-03 1942 Dec 14 1893*3508b934SYuri Pankov -3:00 Uruguay -03/-0230 1960 1894dafc4501SDan McDonald -3:00 Uruguay -03/-02 1968 1895*3508b934SYuri Pankov -3:00 Uruguay -03/-0230 1970 1896dafc4501SDan McDonald -3:00 Uruguay -03/-02 1974 1897*3508b934SYuri Pankov -3:00 Uruguay -03/-0130 1974 Mar 10 1898dafc4501SDan McDonald -3:00 Uruguay -03/-0230 1974 Dec 22 1899dafc4501SDan McDonald -3:00 Uruguay -03/-02 19007c478bd9Sstevel@tonic-gate 19017c478bd9Sstevel@tonic-gate# Venezuela 1902538f0434Srobbin# 190356b82ca8SDan McDonald# From Paul Eggert (2015-07-28): 190456b82ca8SDan McDonald# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 190556b82ca8SDan McDonald# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf 190656b82ca8SDan McDonald# 190717d9c33fSrobbin# From John Stainforth (2007-11-28): 190817d9c33fSrobbin# ... the change for Venezuela originally expected for 2007-12-31 has 190917d9c33fSrobbin# been brought forward to 2007-12-09. The official announcement was 19106f8e8937SDan McDonald# published today in the "Gaceta Oficial de la República Bolivariana 19116f8e8937SDan McDonald# de Venezuela, número 38.819" (official document for all laws or 191217d9c33fSrobbin# resolution publication) 191317d9c33fSrobbin# http://www.globovision.com/news.php?nid=72208 1914538f0434Srobbin 1915c2d5ab87SDan McDonald# From Alexander Krivenyshev (2016-04-15): 1916c2d5ab87SDan McDonald# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino 1917c2d5ab87SDan McDonald# 1918c2d5ab87SDan McDonald# From Paul Eggert (2016-04-15): 1919c2d5ab87SDan McDonald# Clocks advance 30 minutes on 2016-05-01 at 02:30.... 1920c2d5ab87SDan McDonald# "'Venezuela's new time-zone: hours without light, hours without water, 1921c2d5ab87SDan McDonald# hours of presidential broadcasts, hours of lines,' quipped comedian 1922c2d5ab87SDan McDonald# Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps 1923c2d5ab87SDan McDonald# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 1924b654b02dSYuri Pankov# https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE 1925c2d5ab87SDan McDonald# 1926c2d5ab87SDan McDonald# From Matt Johnson (2016-04-20): 1927c2d5ab87SDan McDonald# ... published in the official Gazette [2016-04-18], here: 1928c2d5ab87SDan McDonald# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf 1929c2d5ab87SDan McDonald 19307c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 19317c478bd9Sstevel@tonic-gateZone America/Caracas -4:27:44 - LMT 1890 19327c478bd9Sstevel@tonic-gate -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 1933dafc4501SDan McDonald -4:30 - -0430 1965 Jan 1 0:00 1934dafc4501SDan McDonald -4:00 - -04 2007 Dec 9 3:00 1935dafc4501SDan McDonald -4:30 - -0430 2016 May 1 2:30 1936dafc4501SDan McDonald -4:00 - -04 1937