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 9*dafc4501SDan 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# 16*dafc4501SDan McDonald# Many years ago Gwillim Law wrote that a good source 17*dafc4501SDan 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. 2500973057SDan McDonald# http://www.jstor.org/stable/1774359 267c478bd9Sstevel@tonic-gate# 27*dafc4501SDan McDonald# These tables use numeric abbreviations like -03 and -0330 for 28*dafc4501SDan McDonald# integer hour and minute UTC offsets. Although earlier editions used 29*dafc4501SDan McDonald# alphabetic time zone abbreviations, these abbreviations were 30*dafc4501SDan 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 507c478bd9Sstevel@tonic-gateRule Arg 1930 only - Dec 1 0:00 1:00 S 517c478bd9Sstevel@tonic-gateRule Arg 1931 only - Apr 1 0:00 0 - 527c478bd9Sstevel@tonic-gateRule Arg 1931 only - Oct 15 0:00 1:00 S 537c478bd9Sstevel@tonic-gateRule Arg 1932 1940 - Mar 1 0:00 0 - 547c478bd9Sstevel@tonic-gateRule Arg 1932 1939 - Nov 1 0:00 1:00 S 557c478bd9Sstevel@tonic-gateRule Arg 1940 only - Jul 1 0:00 1:00 S 567c478bd9Sstevel@tonic-gateRule Arg 1941 only - Jun 15 0:00 0 - 577c478bd9Sstevel@tonic-gateRule Arg 1941 only - Oct 15 0:00 1:00 S 587c478bd9Sstevel@tonic-gateRule Arg 1943 only - Aug 1 0:00 0 - 597c478bd9Sstevel@tonic-gateRule Arg 1943 only - Oct 15 0:00 1:00 S 607c478bd9Sstevel@tonic-gateRule Arg 1946 only - Mar 1 0:00 0 - 617c478bd9Sstevel@tonic-gateRule Arg 1946 only - Oct 1 0:00 1:00 S 627c478bd9Sstevel@tonic-gateRule Arg 1963 only - Oct 1 0:00 0 - 637c478bd9Sstevel@tonic-gateRule Arg 1963 only - Dec 15 0:00 1:00 S 647c478bd9Sstevel@tonic-gateRule Arg 1964 1966 - Mar 1 0:00 0 - 657c478bd9Sstevel@tonic-gateRule Arg 1964 1966 - Oct 15 0:00 1:00 S 667c478bd9Sstevel@tonic-gateRule Arg 1967 only - Apr 2 0:00 0 - 677c478bd9Sstevel@tonic-gateRule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S 687c478bd9Sstevel@tonic-gateRule Arg 1968 1969 - Apr Sun>=1 0:00 0 - 697c478bd9Sstevel@tonic-gateRule Arg 1974 only - Jan 23 0:00 1:00 S 707c478bd9Sstevel@tonic-gateRule Arg 1974 only - May 1 0:00 0 - 717c478bd9Sstevel@tonic-gateRule Arg 1988 only - Dec 1 0:00 1:00 S 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 - 797c478bd9Sstevel@tonic-gateRule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S 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. 907c478bd9Sstevel@tonic-gateRule Arg 1999 only - Oct Sun>=1 0:00 1:00 S 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 193106fe065SrobbinRule Arg 2007 only - Dec 30 0:00 1:00 S 1943254abe6SNobutomo NakanoRule Arg 2008 2009 - Mar Sun>=15 0:00 0 - 1953254abe6SNobutomo NakanoRule Arg 2008 only - Oct Sun>=15 0:00 1:00 S 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# 2056f8e8937SDan McDonald# From Paul Eggert (2014-08-09): 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 2102f9aa4a7Srobbin# over Shanks & Pottenger. 2117c478bd9Sstevel@tonic-gate# 2127c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-06-05): 2137c478bd9Sstevel@tonic-gate# These media articles from a major newspaper mostly cover the current state: 2147c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/05/27/de_604825.asp 2157c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/05/28/de_605203.asp 2167c478bd9Sstevel@tonic-gate# 2177c478bd9Sstevel@tonic-gate# The following eight (8) provinces pulled clocks back to UTC-04:00 at 2187c478bd9Sstevel@tonic-gate# midnight Monday May 31st. (that is, the night between 05/31 and 06/01). 2197c478bd9Sstevel@tonic-gate# Apparently, all nine provinces would go back to UTC-03:00 at the same 2207c478bd9Sstevel@tonic-gate# time in October 17th. 2217c478bd9Sstevel@tonic-gate# 2227c478bd9Sstevel@tonic-gate# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, 2236f8e8937SDan McDonald# Tierra del Fuego, Tucumán. 2247c478bd9Sstevel@tonic-gate# 2257c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-06-14): 2266f8e8937SDan McDonald# ... this weekend, the Province of Tucumán decided it'd go back to UTC-03:00 2277c478bd9Sstevel@tonic-gate# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's 2287c478bd9Sstevel@tonic-gate# annoyance with the change is much higher than the power savings obtained.... 2297c478bd9Sstevel@tonic-gate# 2307c478bd9Sstevel@tonic-gate# From Gwillim Law (2004-06-14): 2317c478bd9Sstevel@tonic-gate# http://www.lanacion.com.ar/04/06/10/de_609078.asp ... 2327c478bd9Sstevel@tonic-gate# "The time change in Tierra del Fuego was a conflicted decision from 2337c478bd9Sstevel@tonic-gate# the start. The government had decreed that the measure would take 2347c478bd9Sstevel@tonic-gate# effect on June 1, but a normative error forced the new time to begin 2357c478bd9Sstevel@tonic-gate# three days earlier, from a Saturday to a Sunday.... 2367c478bd9Sstevel@tonic-gate# Our understanding was that the change was originally scheduled to take place 2377c478bd9Sstevel@tonic-gate# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other 2387c478bd9Sstevel@tonic-gate# provinces). Sunday was May 30, only two days earlier. So the article 2397c478bd9Sstevel@tonic-gate# contains a contradiction. I would give more credence to the Saturday/Sunday 2407c478bd9Sstevel@tonic-gate# date than the "three days earlier" phrase, and conclude that Tierra del 2417c478bd9Sstevel@tonic-gate# Fuego set its clocks back at 2004-05-30 00:00. 2427c478bd9Sstevel@tonic-gate# 2437c478bd9Sstevel@tonic-gate# From Steffen Thorsen (2004-10-05): 2447c478bd9Sstevel@tonic-gate# The previous law 7210 which changed the province of Mendoza's time zone 2457c478bd9Sstevel@tonic-gate# back in May have been modified slightly in a new law 7277, which set the 2467c478bd9Sstevel@tonic-gate# new end date to 2004-09-26 (original date was 2004-10-17). 2477c478bd9Sstevel@tonic-gate# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf 2487c478bd9Sstevel@tonic-gate# 2497c478bd9Sstevel@tonic-gate# From Mariano Absatz (2004-10-05): 2507c478bd9Sstevel@tonic-gate# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between 2517c478bd9Sstevel@tonic-gate# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 2527c478bd9Sstevel@tonic-gate# at midnight between Saturday, July 24th and Sunday, July 25th.... 2537c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000329.html 2547c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000426.html 2557c478bd9Sstevel@tonic-gate# http://www.sanjuan.gov.ar/prensa/archivo/000441.html 2567c478bd9Sstevel@tonic-gate 2578593320bSrobbin# From Alex Krivenyshev (2008-01-17): 2588593320bSrobbin# Here are articles that Argentina Province San Luis is planning to end DST 2598593320bSrobbin# as earlier as upcoming Monday January 21, 2008 or February 2008: 2608593320bSrobbin# 2616f8e8937SDan McDonald# Provincia argentina retrasa reloj y marca diferencia con resto del país 2628593320bSrobbin# (Argentine Province delayed clock and mark difference with the rest of the 2638593320bSrobbin# country) 2648593320bSrobbin# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel 2658593320bSrobbin# 2668593320bSrobbin# Es inminente que en San Luis atrasen una hora los relojes 2678593320bSrobbin# (It is imminent in San Luis clocks one hour delay) 2686f8e8937SDan McDonald# http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html 2698593320bSrobbin# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html 2708593320bSrobbin 2716f8e8937SDan McDonald# From Jesper Nørgaard Welen (2008-01-18): 2728593320bSrobbin# The page of the San Luis provincial government 2738593320bSrobbin# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 2748593320bSrobbin# confirms what Alex Krivenyshev has earlier sent to the tz 2758593320bSrobbin# emailing list about that San Luis plans to return to standard 2768593320bSrobbin# time much earlier than the rest of the country. It also 277a43ba736SRobert Mustacchi# confirms that upon request the provinces San Juan and Mendoza 278a43ba736SRobert Mustacchi# refused to follow San Luis in this change. 279a43ba736SRobert Mustacchi# 2806f8e8937SDan McDonald# The change is supposed to take place Monday the 21st at 0:00 2818593320bSrobbin# hours. As far as I understand it if this goes ahead, we need 2828593320bSrobbin# a new timezone for San Luis (although there are also documented 2838593320bSrobbin# independent changes in the southamerica file of San Luis in 2848593320bSrobbin# 1990 and 1991 which has not been confirmed). 2858593320bSrobbin 2866f8e8937SDan McDonald# From Jesper Nørgaard Welen (2008-01-25): 2878593320bSrobbin# Unfortunately the below page has become defunct, about the San Luis 2888593320bSrobbin# time change. Perhaps because it now is part of a group of pages "Most 2898593320bSrobbin# important pages of 2008." 2908593320bSrobbin# 2918593320bSrobbin# You can use 2928593320bSrobbin# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 2938593320bSrobbin# instead it seems. Or use "Buscador" from the main page of the San Luis 2948593320bSrobbin# government, and fill in "huso" and click OK, and you will get 3 pages 2958593320bSrobbin# from which the first one is identical to the above. 2968593320bSrobbin 2978593320bSrobbin# From Mariano Absatz (2008-01-28): 2988593320bSrobbin# I can confirm that the Province of San Luis (and so far only that 2998593320bSrobbin# province) decided to go back to UTC-3 effective midnight Jan 20th 2008 3008593320bSrobbin# (that is, Monday 21st at 0:00 is the time the clocks were delayed back 3018593320bSrobbin# 1 hour), and they intend to keep UTC-3 as their timezone all year round 3028593320bSrobbin# (that is, unless they change their mind any minute now). 3038593320bSrobbin# 3048593320bSrobbin# So we'll have to add yet another city to 'southamerica' (I think San 3058593320bSrobbin# Luis city is the mos populated city in the Province, so it'd be 3068593320bSrobbin# America/Argentina/San_Luis... of course I can't remember if San Luis's 3078593320bSrobbin# history of particular changes goes along with Mendoza or San Juan :-( 3088593320bSrobbin# (I only remember not being able to collect hard facts about San Luis 3098593320bSrobbin# back in 2004, when these provinces changed to UTC-4 for a few days, I 3108593320bSrobbin# mailed them personally and never got an answer). 3118593320bSrobbin 3126f8e8937SDan McDonald# From Paul Eggert (2014-08-12): 3136f8e8937SDan McDonald# Unless otherwise specified, data entries are from Shanks & Pottenger through 3146f8e8937SDan McDonald# 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that 31556725381Srobbin# America/Cordoba split into 6 subregions during 1991/1992, one of which 31656725381Srobbin# was America/San_Luis, but we haven't verified this yet so for now we'll 31756725381Srobbin# keep America/Cordoba a single region rather than splitting it into the 31856725381Srobbin# other 5 subregions. 31956725381Srobbin 32010355008SNobutomo Nakano# From Mariano Absatz (2009-03-13): 32110355008SNobutomo Nakano# Yesterday (with our usual 2-day notice) the Province of San Luis 32210355008SNobutomo Nakano# decided that next Sunday instead of "staying" @utc-03:00 they will go 32310355008SNobutomo Nakano# to utc-04:00 until the second Saturday in October... 32410355008SNobutomo Nakano# 32510355008SNobutomo Nakano# The press release is at 32610355008SNobutomo Nakano# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 3276f8e8937SDan McDonald# (I couldn't find the decree, but www.sanluis.gov.ar 3286f8e8937SDan McDonald# is the official page for the Province Government.) 32910355008SNobutomo Nakano# 330a43ba736SRobert Mustacchi# There's also a note in only one of the major national papers ... 33110355008SNobutomo Nakano# http://www.lanacion.com.ar/nota.asp?nota_id=1107912 332a43ba736SRobert Mustacchi# 333a43ba736SRobert Mustacchi# The press release says [quick and dirty translation]: 334a43ba736SRobert Mustacchi# ... announced that next Sunday, at 00:00, Puntanos (the San Luis 33510355008SNobutomo Nakano# inhabitants) will have to turn back one hour their clocks 33610355008SNobutomo Nakano# 33710355008SNobutomo Nakano# Since then, San Luis will establish its own Province timezone. Thus, 33810355008SNobutomo Nakano# during 2009, this timezone change will run from 00:00 the third Sunday 33910355008SNobutomo Nakano# in March until 24:00 of the second Saturday in October. 34010355008SNobutomo Nakano 3413254abe6SNobutomo Nakano# From Mariano Absatz (2009-10-16): 3423254abe6SNobutomo Nakano# ...the Province of San Luis is a case in itself. 3433254abe6SNobutomo Nakano# 3443254abe6SNobutomo Nakano# The Law at 3453254abe6SNobutomo Nakano# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 3463254abe6SNobutomo Nakano# is ambiguous because establishes a calendar from the 2nd Sunday in 3473254abe6SNobutomo Nakano# October at 0:00 thru the 2nd Saturday in March at 24:00 and the 3483254abe6SNobutomo Nakano# complement of that starting on the 2nd Sunday of March at 0:00 and 3493254abe6SNobutomo Nakano# ending on the 2nd Saturday of March at 24:00. 3503254abe6SNobutomo Nakano# 3513254abe6SNobutomo Nakano# This clearly breaks every time the 1st of March or October is a Sunday. 3523254abe6SNobutomo Nakano# 3533254abe6SNobutomo Nakano# IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd 3543254abe6SNobutomo Nakano# Sunday of October and March. 3553254abe6SNobutomo Nakano# 3563254abe6SNobutomo Nakano# The problem is that the changes in the rest of the Provinces that did 3573254abe6SNobutomo Nakano# change in 2007/2008, were made according to the Federal Law and Decrees 3583254abe6SNobutomo Nakano# that did so on the 3rd Sunday of October and March. 3597c478bd9Sstevel@tonic-gate# 3603254abe6SNobutomo Nakano# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday 3613254abe6SNobutomo Nakano# (October 11th) at 0:00. 3623254abe6SNobutomo Nakano# 3633254abe6SNobutomo Nakano# So I guess a new set of rules, besides "Arg", must be made and the last 3643254abe6SNobutomo Nakano# America/Argentina/San_Luis entries should change to use these... 3653254abe6SNobutomo Nakano# ... 3663254abe6SNobutomo Nakano 3670ba103b8SNobutomo Nakano# From Alexander Krivenyshev (2010-04-09): 3686f8e8937SDan McDonald# According to news reports from El Diario de la República Province San 3690ba103b8SNobutomo Nakano# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time 3706f8e8937SDan McDonald# after April 11, 2010 - will continue to have same time as rest of 3710ba103b8SNobutomo Nakano# Argentina (UTC-3) (no DST). 3720ba103b8SNobutomo Nakano# 3736f8e8937SDan McDonald# Confirmaron la prórroga del huso horario de verano (Spanish) 3740ba103b8SNobutomo Nakano# http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 3750ba103b8SNobutomo Nakano# or (some English translation): 3760ba103b8SNobutomo Nakano# http://www.worldtimezone.com/dst_news/dst_news_argentina08.html 3770ba103b8SNobutomo Nakano 3780ba103b8SNobutomo Nakano# From Mariano Absatz (2010-04-12): 3790ba103b8SNobutomo Nakano# yes...I can confirm this...and given that San Luis keeps calling 3800ba103b8SNobutomo Nakano# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" 3810ba103b8SNobutomo Nakano# rules...San Luis is still using "Western ARgentina Time" and it got 3820ba103b8SNobutomo Nakano# stuck on Summer daylight savings time even though the summer is over. 3830ba103b8SNobutomo Nakano 384a43ba736SRobert Mustacchi# From Paul Eggert (2013-09-05): 385c2d5ab87SDan McDonald# Perhaps San Luis operates on the legal fiction that it is at -04 386a43ba736SRobert Mustacchi# with perpetual summer time, but ordinary usage typically seems to 387c2d5ab87SDan McDonald# just say it's at -03; see, for example, 3886f8e8937SDan McDonald# http://es.wikipedia.org/wiki/Hora_oficial_argentina 389a43ba736SRobert Mustacchi# We've documented similar situations as being plain changes to 390a43ba736SRobert Mustacchi# standard time, so let's do that here too. This does not change UTC 391a43ba736SRobert Mustacchi# offsets, only tm_isdst and the time zone abbreviations. One minor 392a43ba736SRobert Mustacchi# plus is that this silences a zic complaint that there's no POSIX TZ 393a43ba736SRobert Mustacchi# setting for time stamps past 2038. 394a43ba736SRobert Mustacchi 395a43ba736SRobert Mustacchi# From Paul Eggert (2013-02-21): 3966f8e8937SDan McDonald# Milne says Córdoba time was -4:16:48.2. Round to the nearest second. 397a43ba736SRobert Mustacchi 3987c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3997c478bd9Sstevel@tonic-gate# 4007c478bd9Sstevel@tonic-gate# Buenos Aires (BA), Capital Federal (CF), 4016f8e8937SDan McDonaldZone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 4026f8e8937SDan McDonald -4:16:48 - CMT 1920 May # Córdoba Mean Time 403*dafc4501SDan McDonald -4:00 - -04 1930 Dec 404*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 405*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 406*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 407*dafc4501SDan McDonald -3:00 Arg -03/-02 4087c478bd9Sstevel@tonic-gate# 4096f8e8937SDan McDonald# Córdoba (CB), Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), 4108e4c1c45SRobbin Kawabata# Chaco (CC), Formosa (FM), Santiago del Estero (SE) 4117c478bd9Sstevel@tonic-gate# 4122f9aa4a7Srobbin# Shanks & Pottenger also make the following claims, which we haven't verified: 4137c478bd9Sstevel@tonic-gate# - Formosa switched to -3:00 on 1991-01-07. 4147c478bd9Sstevel@tonic-gate# - Misiones switched to -3:00 on 1990-12-29. 4157c478bd9Sstevel@tonic-gate# - Chaco switched to -3:00 on 1991-01-04. 4167c478bd9Sstevel@tonic-gate# - Santiago del Estero switched to -4:00 on 1991-04-01, 4177c478bd9Sstevel@tonic-gate# then to -3:00 on 1991-04-26. 4187c478bd9Sstevel@tonic-gate# 4197c478bd9Sstevel@tonic-gateZone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 4207c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 421*dafc4501SDan McDonald -4:00 - -04 1930 Dec 422*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 423*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 424*dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 425*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 426*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 427*dafc4501SDan McDonald -3:00 Arg -03/-02 4287c478bd9Sstevel@tonic-gate# 4296f8e8937SDan McDonald# Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN) 4308e4c1c45SRobbin KawabataZone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 4318e4c1c45SRobbin Kawabata -4:16:48 - CMT 1920 May 432*dafc4501SDan McDonald -4:00 - -04 1930 Dec 433*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 434*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 435*dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 436*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 437*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 438*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 439*dafc4501SDan McDonald -3:00 - -03 4408e4c1c45SRobbin Kawabata# 4416f8e8937SDan McDonald# Tucumán (TM) 4427c478bd9Sstevel@tonic-gateZone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 4437c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 444*dafc4501SDan McDonald -4:00 - -04 1930 Dec 445*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 446*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 447*dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 448*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 449*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 450*dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 451*dafc4501SDan McDonald -4:00 - -04 2004 Jun 13 452*dafc4501SDan McDonald -3:00 Arg -03/-02 4537c478bd9Sstevel@tonic-gate# 4547c478bd9Sstevel@tonic-gate# La Rioja (LR) 4557c478bd9Sstevel@tonic-gateZone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 4567c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 457*dafc4501SDan McDonald -4:00 - -04 1930 Dec 458*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 459*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 1 460*dafc4501SDan McDonald -4:00 - -04 1991 May 7 461*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 462*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 463*dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 464*dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 465*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 466*dafc4501SDan McDonald -3:00 - -03 4677c478bd9Sstevel@tonic-gate# 4687c478bd9Sstevel@tonic-gate# San Juan (SJ) 4697c478bd9Sstevel@tonic-gateZone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 4707c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 471*dafc4501SDan McDonald -4:00 - -04 1930 Dec 472*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 473*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 1 474*dafc4501SDan McDonald -4:00 - -04 1991 May 7 475*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 476*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 477*dafc4501SDan McDonald -3:00 - -03 2004 May 31 478*dafc4501SDan McDonald -4:00 - -04 2004 Jul 25 479*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 480*dafc4501SDan McDonald -3:00 - -03 4817c478bd9Sstevel@tonic-gate# 4827c478bd9Sstevel@tonic-gate# Jujuy (JY) 4837c478bd9Sstevel@tonic-gateZone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 4847c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 485*dafc4501SDan McDonald -4:00 - -04 1930 Dec 486*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 487*dafc4501SDan McDonald -3:00 Arg -03/-02 1990 Mar 4 488*dafc4501SDan McDonald -4:00 - -04 1990 Oct 28 489*dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 17 490*dafc4501SDan McDonald -4:00 - -04 1991 Oct 6 491*dafc4501SDan McDonald -3:00 1:00 -02 1992 492*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 493*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 494*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 495*dafc4501SDan McDonald -3:00 - -03 4967c478bd9Sstevel@tonic-gate# 49780868c53Srobbin# Catamarca (CT), Chubut (CH) 4987c478bd9Sstevel@tonic-gateZone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 4997c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 500*dafc4501SDan McDonald -4:00 - -04 1930 Dec 501*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 502*dafc4501SDan McDonald -3:00 Arg -03/-02 1991 Mar 3 503*dafc4501SDan McDonald -4:00 - -04 1991 Oct 20 504*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 505*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 506*dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 507*dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 508*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 509*dafc4501SDan McDonald -3:00 - -03 5107c478bd9Sstevel@tonic-gate# 5117c478bd9Sstevel@tonic-gate# Mendoza (MZ) 5127c478bd9Sstevel@tonic-gateZone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 5137c478bd9Sstevel@tonic-gate -4:16:48 - CMT 1920 May 514*dafc4501SDan McDonald -4:00 - -04 1930 Dec 515*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 516*dafc4501SDan McDonald -3:00 Arg -03/-02 1990 Mar 4 517*dafc4501SDan McDonald -4:00 - -04 1990 Oct 15 518*dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 1 519*dafc4501SDan McDonald -4:00 - -04 1991 Oct 15 520*dafc4501SDan McDonald -4:00 1:00 -03 1992 Mar 1 521*dafc4501SDan McDonald -4:00 - -04 1992 Oct 18 522*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 523*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 524*dafc4501SDan McDonald -3:00 - -03 2004 May 23 525*dafc4501SDan McDonald -4:00 - -04 2004 Sep 26 526*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 527*dafc4501SDan McDonald -3:00 - -03 5287c478bd9Sstevel@tonic-gate# 5298593320bSrobbin# San Luis (SL) 5303254abe6SNobutomo Nakano 5310ba103b8SNobutomo NakanoRule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - 532a43ba736SRobert MustacchiRule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S 5333254abe6SNobutomo Nakano 5348593320bSrobbinZone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 5358593320bSrobbin -4:16:48 - CMT 1920 May 536*dafc4501SDan McDonald -4:00 - -04 1930 Dec 537*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 538*dafc4501SDan McDonald -3:00 Arg -03/-02 1990 539*dafc4501SDan McDonald -3:00 1:00 -02 1990 Mar 14 540*dafc4501SDan McDonald -4:00 - -04 1990 Oct 15 541*dafc4501SDan McDonald -4:00 1:00 -03 1991 Mar 1 542*dafc4501SDan McDonald -4:00 - -04 1991 Jun 1 543*dafc4501SDan McDonald -3:00 - -03 1999 Oct 3 544*dafc4501SDan McDonald -4:00 1:00 -03 2000 Mar 3 545*dafc4501SDan McDonald -3:00 - -03 2004 May 31 546*dafc4501SDan McDonald -4:00 - -04 2004 Jul 25 547*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Jan 21 548*dafc4501SDan McDonald -4:00 SanLuis -04/-03 2009 Oct 11 549*dafc4501SDan McDonald -3:00 - -03 5508593320bSrobbin# 5517c478bd9Sstevel@tonic-gate# Santa Cruz (SC) 5526f8e8937SDan McDonaldZone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 553*dafc4501SDan McDonald -4:16:48 - CMT 1920 May 554*dafc4501SDan McDonald -4:00 - -04 1930 Dec 555*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 556*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 557*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 558*dafc4501SDan McDonald -3:00 - -03 2004 Jun 1 559*dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 560*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 561*dafc4501SDan McDonald -3:00 - -03 5627c478bd9Sstevel@tonic-gate# 5636f8e8937SDan McDonald# Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) 5646f8e8937SDan McDonaldZone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 565*dafc4501SDan McDonald -4:16:48 - CMT 1920 May 566*dafc4501SDan McDonald -4:00 - -04 1930 Dec 567*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 568*dafc4501SDan McDonald -3:00 Arg -03/-02 1999 Oct 3 569*dafc4501SDan McDonald -4:00 Arg -04/-03 2000 Mar 3 570*dafc4501SDan McDonald -3:00 - -03 2004 May 30 571*dafc4501SDan McDonald -4:00 - -04 2004 Jun 20 572*dafc4501SDan McDonald -3:00 Arg -03/-02 2008 Oct 18 573*dafc4501SDan McDonald -3:00 - -03 5747c478bd9Sstevel@tonic-gate 5757c478bd9Sstevel@tonic-gate# Aruba 576a43ba736SRobert MustacchiLink America/Curacao America/Aruba 5777c478bd9Sstevel@tonic-gate 5787c478bd9Sstevel@tonic-gate# Bolivia 5797c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 5807c478bd9Sstevel@tonic-gateZone America/La_Paz -4:32:36 - LMT 1890 5817c478bd9Sstevel@tonic-gate -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 5827c478bd9Sstevel@tonic-gate -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 583*dafc4501SDan McDonald -4:00 - -04 5847c478bd9Sstevel@tonic-gate 5857c478bd9Sstevel@tonic-gate# Brazil 5867c478bd9Sstevel@tonic-gate 58780868c53Srobbin# From Paul Eggert (1993-11-18): 5887c478bd9Sstevel@tonic-gate# The mayor of Rio recently attempted to change the time zone rules 5897c478bd9Sstevel@tonic-gate# just in his city, in order to leave more summer time for the tourist trade. 5907c478bd9Sstevel@tonic-gate# The rule change lasted only part of the day; 5917c478bd9Sstevel@tonic-gate# the federal government refused to follow the city's rules, and business 5927c478bd9Sstevel@tonic-gate# was in a chaos, so the mayor backed down that afternoon. 5937c478bd9Sstevel@tonic-gate 5947c478bd9Sstevel@tonic-gate# From IATA SSIM (1996-02): 5957c478bd9Sstevel@tonic-gate# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 5966f8e8937SDan McDonald# Santa Catarina (SC), Paraná (PR), São Paulo (SP), Rio de Janeiro (RJ), 5976f8e8937SDan McDonald# Espírito Santo (ES), Minas Gerais (MG), Bahia (BA), Goiás (GO), 5987c478bd9Sstevel@tonic-gate# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 5997c478bd9Sstevel@tonic-gate# [The last three states are new to this issue of the IATA SSIM.] 6007c478bd9Sstevel@tonic-gate 6017c478bd9Sstevel@tonic-gate# From Gwillim Law (1996-10-07): 6026f8e8937SDan McDonald# Geography, history (Tocantins was part of Goiás until 1989), and other 6037c478bd9Sstevel@tonic-gate# sources of time zone information lead me to believe that AL, SE, and TO were 6047c478bd9Sstevel@tonic-gate# always in BR1, and so the only change was whether or not they observed DST.... 6057c478bd9Sstevel@tonic-gate# The earliest issue of the SSIM I have is 2/91. Each issue from then until 6067c478bd9Sstevel@tonic-gate# 9/95 says that DST is observed only in the ten states I quoted from 9/95, 6077c478bd9Sstevel@tonic-gate# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 6087c478bd9Sstevel@tonic-gate# (UTC-4).... The other two time zones given for Brazil are BR3, which is 6097c478bd9Sstevel@tonic-gate# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 6107c478bd9Sstevel@tonic-gate# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 6117c478bd9Sstevel@tonic-gate# become part of the state of Pernambuco). The boundary between BR1 and BR2 6127c478bd9Sstevel@tonic-gate# has never been clearly stated. They've simply been called East and West. 6137c478bd9Sstevel@tonic-gate# However, some conclusions can be drawn from another IATA manual: the Airline 6147c478bd9Sstevel@tonic-gate# Coding Directory, which lists close to 400 airports in Brazil. For each 6157c478bd9Sstevel@tonic-gate# airport it gives a time zone which is coded to the SSIM. From that 6166f8e8937SDan McDonald# information, I'm led to conclude that the states of Amapá (AP), Ceará (CE), 6176f8e8937SDan McDonald# Maranhão (MA), Paraíba (PR), Pernambuco (PE), Piauí (PI), and Rio Grande do 6186f8e8937SDan McDonald# Norte (RN), and the eastern part of Pará (PA) are all in BR1 without DST. 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate# From Marcos Tadeu (1998-09-27): 6216f8e8937SDan McDonald# Brazilian official page <http://pcdsh01.on.br/verao1.html> 6227c478bd9Sstevel@tonic-gate 6236f8e8937SDan McDonald# From Jesper Nørgaard (2000-11-03): 6247c478bd9Sstevel@tonic-gate# [For an official list of which regions in Brazil use which time zones, see:] 6257c478bd9Sstevel@tonic-gate# http://pcdsh01.on.br/Fusbr.htm 6267c478bd9Sstevel@tonic-gate# http://pcdsh01.on.br/Fusbrhv.htm 6277c478bd9Sstevel@tonic-gate 6287c478bd9Sstevel@tonic-gate# From Celso Doria via David Madeo (2002-10-09): 6297c478bd9Sstevel@tonic-gate# The reason for the delay this year has to do with elections in Brazil. 6307c478bd9Sstevel@tonic-gate# 6317c478bd9Sstevel@tonic-gate# Unlike in the United States, elections in Brazil are 100% computerized and 6327c478bd9Sstevel@tonic-gate# the results are known almost immediately. Yesterday, it was the first 6337c478bd9Sstevel@tonic-gate# round of the elections when 115 million Brazilians voted for President, 6347c478bd9Sstevel@tonic-gate# Governor, Senators, Federal Deputies, and State Deputies. Nobody is 6357c478bd9Sstevel@tonic-gate# counting (or re-counting) votes anymore and we know there will be a second 6367c478bd9Sstevel@tonic-gate# round for the Presidency and also for some Governors. The 2nd round will 6377c478bd9Sstevel@tonic-gate# take place on October 27th. 6387c478bd9Sstevel@tonic-gate# 6397c478bd9Sstevel@tonic-gate# The reason why the DST will only begin November 3rd is that the thousands 6407c478bd9Sstevel@tonic-gate# of electoral machines used cannot have their time changed, and since the 6417c478bd9Sstevel@tonic-gate# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 6427c478bd9Sstevel@tonic-gate# the Government decided to postpone DST, instead of changing the Constitution 6437c478bd9Sstevel@tonic-gate# (maybe, for the next elections, it will be possible to change the clock)... 6447c478bd9Sstevel@tonic-gate 6457c478bd9Sstevel@tonic-gate# From Rodrigo Severo (2004-10-04): 6467c478bd9Sstevel@tonic-gate# It's just the biannual change made necessary by the much hyped, supposedly 6477c478bd9Sstevel@tonic-gate# modern Brazilian eletronic voting machines which, apparently, can't deal 6487c478bd9Sstevel@tonic-gate# with a time change between the first and the second rounds of the elections. 6497c478bd9Sstevel@tonic-gate 650538f0434Srobbin# From Steffen Thorsen (2007-09-20): 651538f0434Srobbin# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 652538f0434Srobbin# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 653538f0434Srobbin 65456725381Srobbin# From Paul Schulze (2008-06-24): 65556725381Srobbin# ...by law number 11.662 of April 24, 2008 (published in the "Diario 6566f8e8937SDan McDonald# Oficial da União"...) in Brazil there are changes in the timezones, 65756725381Srobbin# effective today (00:00am at June 24, 2008) as follows: 65856725381Srobbin# 6596f8e8937SDan McDonald# a) The timezone UTC+5 is extinguished, with all the Acre state and the 66056725381Srobbin# part of the Amazonas state that had this timezone now being put to the 66156725381Srobbin# timezone UTC+4 6626f8e8937SDan McDonald# b) The whole Pará state now is put at timezone UTC+3, instead of just 66356725381Srobbin# part of it, as was before. 66456725381Srobbin# 66556725381Srobbin# This change follows a proposal of senator Tiao Viana of Acre state, that 66656725381Srobbin# proposed it due to concerns about open television channels displaying 66756725381Srobbin# programs inappropriate to youths in the states that had the timezone 66856725381Srobbin# UTC+5 too early in the night. In the occasion, some more corrections 66956725381Srobbin# were proposed, trying to unify the timezones of any given state. This 67056725381Srobbin# change modifies timezone rules defined in decree 2.784 of 18 June, 67156725381Srobbin# 1913. 67256725381Srobbin 67356725381Srobbin# From Rodrigo Severo (2008-06-24): 67456725381Srobbin# Just correcting the URL: 675707182d7SNobutomo Nakano# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 67656725381Srobbin# 67756725381Srobbin# As a result of the above Decree I believe the America/Rio_Branco 67856725381Srobbin# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 6796f8e8937SDan McDonald# be created to represent the...west side of the Pará State. I 68056725381Srobbin# suggest this new timezone be called Santarem as the most 68156725381Srobbin# important/populated city in the affected area. 68256725381Srobbin# 68356725381Srobbin# This new timezone would be the same as the Rio_Branco timezone up to 68456725381Srobbin# the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 68556725381Srobbin 68656725381Srobbin# From Alex Krivenyshev (2008-06-24): 68756725381Srobbin# This is a quick reference page for New and Old Brazil Time Zones map. 68856725381Srobbin# http://www.worldtimezone.com/brazil-time-new-old.php 68956725381Srobbin# 6906f8e8937SDan McDonald# - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 6916f8e8937SDan McDonald# (state Acre and the part of the Amazonas will be UTC/GMT-04) - western 6926f8e8937SDan McDonald# part of Par state is moving to one timezone UTC-03 (from UTC-04). 69356725381Srobbin 6947c478bd9Sstevel@tonic-gate# From Paul Eggert (2002-10-10): 6957c478bd9Sstevel@tonic-gate# The official decrees referenced below are mostly taken from 6966f8e8937SDan McDonald# Decretos sobre o Horário de Verão no Brasil. 6976f8e8937SDan McDonald# http://pcdsh01.on.br/DecHV.html 6987c478bd9Sstevel@tonic-gate 699376a7c81SRobbin Kawabata# From Steffen Thorsen (2008-08-29): 700376a7c81SRobbin Kawabata# As announced by the government and many newspapers in Brazil late 701376a7c81SRobbin Kawabata# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 702376a7c81SRobbin Kawabata# it will end on 2009-02-15 (current rule for Brazil is fine). Based on 703376a7c81SRobbin Kawabata# past years experience with the elections, there was a good chance that 704376a7c81SRobbin Kawabata# the start was postponed to November, but it did not happen this year. 705376a7c81SRobbin Kawabata# 706376a7c81SRobbin Kawabata# It has not yet been posted to http://pcdsh01.on.br/DecHV.html 707376a7c81SRobbin Kawabata# 708376a7c81SRobbin Kawabata# An official page about it: 709376a7c81SRobbin Kawabata# http://www.mme.gov.br/site/news/detail.do?newsId=16722 710376a7c81SRobbin Kawabata# Note that this link does not always work directly, but must be accessed 711376a7c81SRobbin Kawabata# by going to 712376a7c81SRobbin Kawabata# http://www.mme.gov.br/first 713376a7c81SRobbin Kawabata# 714376a7c81SRobbin Kawabata# One example link that works directly: 715376a7c81SRobbin Kawabata# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 716376a7c81SRobbin Kawabata# (Portuguese) 717376a7c81SRobbin Kawabata# 718376a7c81SRobbin Kawabata# We have a written a short article about it as well: 719376a7c81SRobbin Kawabata# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 720abaa65c8SYuri Pankov# 721abaa65c8SYuri Pankov# From Alexander Krivenyshev (2011-10-04): 722abaa65c8SYuri Pankov# State Bahia will return to Daylight savings time this year after 8 years off. 723a43ba736SRobert Mustacchi# The announcement was made by Governor Jaques Wagner in an interview to a 724a43ba736SRobert Mustacchi# television station in Salvador. 725abaa65c8SYuri Pankov 726abaa65c8SYuri Pankov# In Portuguese: 727abaa65c8SYuri Pankov# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html 728abaa65c8SYuri Pankov# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html 729abaa65c8SYuri Pankov 730abaa65c8SYuri Pankov# From Guilherme Bernardes Rodrigues (2011-10-07): 731abaa65c8SYuri Pankov# There is news in the media, however there is still no decree about it. 7326f8e8937SDan McDonald# I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the 733a43ba736SRobert Mustacchi# official agency about time in Brazil, and she confirmed that the old rule is 734abaa65c8SYuri Pankov# still in force. 735abaa65c8SYuri Pankov 736abaa65c8SYuri Pankov# From Guilherme Bernardes Rodrigues (2011-10-14) 737abaa65c8SYuri Pankov# It's official, the President signed a decree that includes Bahia in summer 738abaa65c8SYuri Pankov# time. 739abaa65c8SYuri Pankov# [ and in a second message (same day): ] 740abaa65c8SYuri Pankov# I found the decree. 741abaa65c8SYuri Pankov# 74256b82ca8SDan McDonald# DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 743abaa65c8SYuri Pankov# Link : 744abaa65c8SYuri Pankov# http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 745abaa65c8SYuri Pankov 746a43ba736SRobert Mustacchi# From Kelley Cook (2012-10-16): 747a43ba736SRobert Mustacchi# The governor of state of Bahia in Brazil announced on Thursday that 748a43ba736SRobert Mustacchi# due to public pressure, he is reversing the DST policy they implemented 749a43ba736SRobert Mustacchi# last year and will not be going to Summer Time on October 21st.... 750a43ba736SRobert Mustacchi# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia 751a43ba736SRobert Mustacchi 752a43ba736SRobert Mustacchi# From Rodrigo Severo (2012-10-16): 753a43ba736SRobert Mustacchi# Tocantins state will have DST. 754a43ba736SRobert Mustacchi# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html 755a43ba736SRobert Mustacchi 756a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-09-20): 757a43ba736SRobert Mustacchi# Tocantins in Brazil is very likely not to observe DST from October.... 758a43ba736SRobert 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 759a43ba736SRobert Mustacchi# We will keep this article updated when this is confirmed: 760a43ba736SRobert Mustacchi# http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html 761a43ba736SRobert Mustacchi 762a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-10-17): 763a43ba736SRobert Mustacchi# http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html 764a43ba736SRobert Mustacchi# Senator Jorge Viana announced that Acre will change time zone on November 10. 765a43ba736SRobert Mustacchi# He did not specify the time of the change, nor if western parts of Amazonas 766a43ba736SRobert Mustacchi# will change as well. 767a43ba736SRobert Mustacchi# 768a43ba736SRobert Mustacchi# From Paul Eggert (2013-10-17): 769a43ba736SRobert Mustacchi# For now, assume western Amazonas will change as well. 770376a7c81SRobbin Kawabata 7717c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 7726f8e8937SDan McDonald# Decree 20,466 <http://pcdsh01.on.br/HV20466.htm> (1931-10-01) 7736f8e8937SDan McDonald# Decree 21,896 <http://pcdsh01.on.br/HV21896.htm> (1932-01-10) 7747c478bd9Sstevel@tonic-gateRule Brazil 1931 only - Oct 3 11:00 1:00 S 7757c478bd9Sstevel@tonic-gateRule Brazil 1932 1933 - Apr 1 0:00 0 - 7767c478bd9Sstevel@tonic-gateRule Brazil 1932 only - Oct 3 0:00 1:00 S 7776f8e8937SDan McDonald# Decree 23,195 <http://pcdsh01.on.br/HV23195.htm> (1933-10-10) 7787c478bd9Sstevel@tonic-gate# revoked DST. 7796f8e8937SDan McDonald# Decree 27,496 <http://pcdsh01.on.br/HV27496.htm> (1949-11-24) 7806f8e8937SDan McDonald# Decree 27,998 <http://pcdsh01.on.br/HV27998.htm> (1950-04-13) 7817c478bd9Sstevel@tonic-gateRule Brazil 1949 1952 - Dec 1 0:00 1:00 S 7827c478bd9Sstevel@tonic-gateRule Brazil 1950 only - Apr 16 1:00 0 - 7837c478bd9Sstevel@tonic-gateRule Brazil 1951 1952 - Apr 1 0:00 0 - 7846f8e8937SDan McDonald# Decree 32,308 <http://pcdsh01.on.br/HV32308.htm> (1953-02-24) 7857c478bd9Sstevel@tonic-gateRule Brazil 1953 only - Mar 1 0:00 0 - 7866f8e8937SDan McDonald# Decree 34,724 <http://pcdsh01.on.br/HV34724.htm> (1953-11-30) 7877c478bd9Sstevel@tonic-gate# revoked DST. 7886f8e8937SDan McDonald# Decree 52,700 <http://pcdsh01.on.br/HV52700.htm> (1963-10-18) 7897c478bd9Sstevel@tonic-gate# established DST from 1963-10-23 00:00 to 1964-02-29 00:00 7907c478bd9Sstevel@tonic-gate# in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 7916f8e8937SDan McDonald# Decree 53,071 <http://pcdsh01.on.br/HV53071.htm> (1963-12-03) 7927c478bd9Sstevel@tonic-gate# extended the above decree to all of the national territory on 12-09. 7937c478bd9Sstevel@tonic-gateRule Brazil 1963 only - Dec 9 0:00 1:00 S 7946f8e8937SDan McDonald# Decree 53,604 <http://pcdsh01.on.br/HV53604.htm> (1964-02-25) 7957c478bd9Sstevel@tonic-gate# extended summer time by one day to 1964-03-01 00:00 (start of school). 7967c478bd9Sstevel@tonic-gateRule Brazil 1964 only - Mar 1 0:00 0 - 7976f8e8937SDan McDonald# Decree 55,639 <http://pcdsh01.on.br/HV55639.htm> (1965-01-27) 7987c478bd9Sstevel@tonic-gateRule Brazil 1965 only - Jan 31 0:00 1:00 S 7997c478bd9Sstevel@tonic-gateRule Brazil 1965 only - Mar 31 0:00 0 - 8006f8e8937SDan McDonald# Decree 57,303 <http://pcdsh01.on.br/HV57303.htm> (1965-11-22) 8017c478bd9Sstevel@tonic-gateRule Brazil 1965 only - Dec 1 0:00 1:00 S 8026f8e8937SDan McDonald# Decree 57,843 <http://pcdsh01.on.br/HV57843.htm> (1966-02-18) 8037c478bd9Sstevel@tonic-gateRule Brazil 1966 1968 - Mar 1 0:00 0 - 8047c478bd9Sstevel@tonic-gateRule Brazil 1966 1967 - Nov 1 0:00 1:00 S 8056f8e8937SDan McDonald# Decree 63,429 <http://pcdsh01.on.br/HV63429.htm> (1968-10-15) 8067c478bd9Sstevel@tonic-gate# revoked DST. 8076f8e8937SDan McDonald# Decree 91,698 <http://pcdsh01.on.br/HV91698.htm> (1985-09-27) 8087c478bd9Sstevel@tonic-gateRule Brazil 1985 only - Nov 2 0:00 1:00 S 8097c478bd9Sstevel@tonic-gate# Decree 92,310 (1986-01-21) 8107c478bd9Sstevel@tonic-gate# Decree 92,463 (1986-03-13) 8117c478bd9Sstevel@tonic-gateRule Brazil 1986 only - Mar 15 0:00 0 - 8127c478bd9Sstevel@tonic-gate# Decree 93,316 (1986-10-01) 8137c478bd9Sstevel@tonic-gateRule Brazil 1986 only - Oct 25 0:00 1:00 S 8147c478bd9Sstevel@tonic-gateRule Brazil 1987 only - Feb 14 0:00 0 - 8156f8e8937SDan McDonald# Decree 94,922 <http://pcdsh01.on.br/HV94922.htm> (1987-09-22) 8167c478bd9Sstevel@tonic-gateRule Brazil 1987 only - Oct 25 0:00 1:00 S 8177c478bd9Sstevel@tonic-gateRule Brazil 1988 only - Feb 7 0:00 0 - 8186f8e8937SDan McDonald# Decree 96,676 <http://pcdsh01.on.br/HV96676.htm> (1988-09-12) 8197c478bd9Sstevel@tonic-gate# except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 8207c478bd9Sstevel@tonic-gateRule Brazil 1988 only - Oct 16 0:00 1:00 S 8217c478bd9Sstevel@tonic-gateRule Brazil 1989 only - Jan 29 0:00 0 - 8226f8e8937SDan McDonald# Decree 98,077 <http://pcdsh01.on.br/HV98077.htm> (1989-08-21) 8237c478bd9Sstevel@tonic-gate# with the same exceptions 8247c478bd9Sstevel@tonic-gateRule Brazil 1989 only - Oct 15 0:00 1:00 S 8257c478bd9Sstevel@tonic-gateRule Brazil 1990 only - Feb 11 0:00 0 - 8266f8e8937SDan McDonald# Decree 99,530 <http://pcdsh01.on.br/HV99530.htm> (1990-09-17) 8277c478bd9Sstevel@tonic-gate# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 8287c478bd9Sstevel@tonic-gate# Decree 99,629 (1990-10-19) adds BA, MT. 8297c478bd9Sstevel@tonic-gateRule Brazil 1990 only - Oct 21 0:00 1:00 S 8307c478bd9Sstevel@tonic-gateRule Brazil 1991 only - Feb 17 0:00 0 - 8316f8e8937SDan McDonald# Unnumbered decree <http://pcdsh01.on.br/HV1991.htm> (1991-09-25) 8327c478bd9Sstevel@tonic-gate# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 8337c478bd9Sstevel@tonic-gateRule Brazil 1991 only - Oct 20 0:00 1:00 S 8347c478bd9Sstevel@tonic-gateRule Brazil 1992 only - Feb 9 0:00 0 - 8356f8e8937SDan McDonald# Unnumbered decree <http://pcdsh01.on.br/HV1992.htm> (1992-10-16) 8367c478bd9Sstevel@tonic-gate# adopted by same states. 8377c478bd9Sstevel@tonic-gateRule Brazil 1992 only - Oct 25 0:00 1:00 S 8387c478bd9Sstevel@tonic-gateRule Brazil 1993 only - Jan 31 0:00 0 - 8396f8e8937SDan McDonald# Decree 942 <http://pcdsh01.on.br/HV942.htm> (1993-09-28) 8407c478bd9Sstevel@tonic-gate# adopted by same states, plus AM. 8416f8e8937SDan McDonald# Decree 1,252 <http://pcdsh01.on.br/HV1252.htm> (1994-09-22; 8427c478bd9Sstevel@tonic-gate# web page corrected 2004-01-07) adopted by same states, minus AM. 8436f8e8937SDan McDonald# Decree 1,636 <http://pcdsh01.on.br/HV1636.htm> (1995-09-14) 8447c478bd9Sstevel@tonic-gate# adopted by same states, plus MT and TO. 8456f8e8937SDan McDonald# Decree 1,674 <http://pcdsh01.on.br/HV1674.htm> (1995-10-13) 8467c478bd9Sstevel@tonic-gate# adds AL, SE. 8477c478bd9Sstevel@tonic-gateRule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S 8487c478bd9Sstevel@tonic-gateRule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 8497c478bd9Sstevel@tonic-gateRule Brazil 1996 only - Feb 11 0:00 0 - 8506f8e8937SDan McDonald# Decree 2,000 <http://pcdsh01.on.br/HV2000.htm> (1996-09-04) 8517c478bd9Sstevel@tonic-gate# adopted by same states, minus AL, SE. 8527c478bd9Sstevel@tonic-gateRule Brazil 1996 only - Oct 6 0:00 1:00 S 8537c478bd9Sstevel@tonic-gateRule Brazil 1997 only - Feb 16 0:00 0 - 85480868c53Srobbin# From Daniel C. Sobral (1998-02-12): 8557c478bd9Sstevel@tonic-gate# In 1997, the DS began on October 6. The stated reason was that 8567c478bd9Sstevel@tonic-gate# because international television networks ignored Brazil's policy on DS, 8577c478bd9Sstevel@tonic-gate# they bought the wrong times on satellite for coverage of Pope's visit. 8587c478bd9Sstevel@tonic-gate# This year, the ending date of DS was postponed to March 1 8597c478bd9Sstevel@tonic-gate# to help dealing with the shortages of electric power. 8607c478bd9Sstevel@tonic-gate# 8617c478bd9Sstevel@tonic-gate# Decree 2,317 (1997-09-04), adopted by same states. 8627c478bd9Sstevel@tonic-gateRule Brazil 1997 only - Oct 6 0:00 1:00 S 8636f8e8937SDan McDonald# Decree 2,495 <http://pcdsh01.on.br/figuras/HV2495.JPG> 8647c478bd9Sstevel@tonic-gate# (1998-02-10) 8657c478bd9Sstevel@tonic-gateRule Brazil 1998 only - Mar 1 0:00 0 - 8666f8e8937SDan McDonald# Decree 2,780 <http://pcdsh01.on.br/figuras/Hv98.jpg> (1998-09-11) 8677c478bd9Sstevel@tonic-gate# adopted by the same states as before. 8687c478bd9Sstevel@tonic-gateRule Brazil 1998 only - Oct 11 0:00 1:00 S 8697c478bd9Sstevel@tonic-gateRule Brazil 1999 only - Feb 21 0:00 0 - 8706f8e8937SDan McDonald# Decree 3,150 <http://pcdsh01.on.br/figuras/HV3150.gif> 8717c478bd9Sstevel@tonic-gate# (1999-08-23) adopted by same states. 8726f8e8937SDan McDonald# Decree 3,188 <http://pcdsh01.on.br/DecHV99.gif> (1999-09-30) 8737c478bd9Sstevel@tonic-gate# adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 8747c478bd9Sstevel@tonic-gateRule Brazil 1999 only - Oct 3 0:00 1:00 S 8757c478bd9Sstevel@tonic-gateRule Brazil 2000 only - Feb 27 0:00 0 - 8766f8e8937SDan McDonald# Decree 3,592 <http://pcdsh01.on.br/DEC3592.htm> (2000-09-06) 8777c478bd9Sstevel@tonic-gate# adopted by the same states as before. 8786f8e8937SDan McDonald# Decree 3,630 <http://pcdsh01.on.br/Dec3630.jpg> (2000-10-13) 8797c478bd9Sstevel@tonic-gate# repeals DST in PE and RR, effective 2000-10-15 00:00. 8806f8e8937SDan McDonald# Decree 3,632 <http://pcdsh01.on.br/Dec3632.jpg> (2000-10-17) 8817c478bd9Sstevel@tonic-gate# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 8826f8e8937SDan McDonald# Decree 3,916 <http://pcdsh01.on.br/figuras/HV3916.gif> 8837c478bd9Sstevel@tonic-gate# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 8847c478bd9Sstevel@tonic-gateRule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S 8852f9aa4a7SrobbinRule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 8867c478bd9Sstevel@tonic-gate# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 8876f8e8937SDan McDonald# 4,399 <http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm> 8887c478bd9Sstevel@tonic-gateRule Brazil 2002 only - Nov 3 0:00 1:00 S 8897c478bd9Sstevel@tonic-gate# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 8906f8e8937SDan McDonald# 4,844 <http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm> 8917c478bd9Sstevel@tonic-gateRule Brazil 2003 only - Oct 19 0:00 1:00 S 8927c478bd9Sstevel@tonic-gate# Decree 5,223 (2004-10-01) reestablishes DST in MT. 8936f8e8937SDan McDonald# 5,223 <http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm> 8947c478bd9Sstevel@tonic-gateRule Brazil 2004 only - Nov 2 0:00 1:00 S 8956f8e8937SDan McDonald# Decree 5,539 <http://pcdsh01.on.br/DecHV5539.gif> (2005-09-19), 89680868c53Srobbin# adopted by the same states as before. 8972f9aa4a7SrobbinRule Brazil 2005 only - Oct 16 0:00 1:00 S 8986f8e8937SDan McDonald# Decree 5,920 <http://pcdsh01.on.br/DecHV5920.gif> (2006-10-03), 899538f0434Srobbin# adopted by the same states as before. 900538f0434SrobbinRule Brazil 2006 only - Nov 5 0:00 1:00 S 901538f0434SrobbinRule Brazil 2007 only - Feb 25 0:00 0 - 9026f8e8937SDan McDonald# Decree 6,212 <http://pcdsh01.on.br/DecHV6212.gif> (2007-09-26), 90356725381Srobbin# adopted by the same states as before. 904376a7c81SRobbin KawabataRule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S 905376a7c81SRobbin Kawabata# From Frederico A. C. Neves (2008-09-10): 906a43ba736SRobert Mustacchi# According to this decree 907376a7c81SRobbin Kawabata# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 908376a7c81SRobbin Kawabata# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 909376a7c81SRobbin Kawabata# 3rd Feb Sunday. There is an exception on the return date when this is 910376a7c81SRobbin Kawabata# the Carnival Sunday then the return date will be the next Sunday... 911376a7c81SRobbin KawabataRule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S 912376a7c81SRobbin KawabataRule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 913376a7c81SRobbin KawabataRule Brazil 2012 only - Feb Sun>=22 0:00 0 - 914376a7c81SRobbin KawabataRule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 915376a7c81SRobbin KawabataRule Brazil 2015 only - Feb Sun>=22 0:00 0 - 916376a7c81SRobbin KawabataRule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 917376a7c81SRobbin KawabataRule Brazil 2023 only - Feb Sun>=22 0:00 0 - 918376a7c81SRobbin KawabataRule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 919376a7c81SRobbin KawabataRule Brazil 2026 only - Feb Sun>=22 0:00 0 - 920376a7c81SRobbin KawabataRule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 921376a7c81SRobbin KawabataRule Brazil 2034 only - Feb Sun>=22 0:00 0 - 922376a7c81SRobbin KawabataRule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 923376a7c81SRobbin KawabataRule Brazil 2037 only - Feb Sun>=22 0:00 0 - 924376a7c81SRobbin Kawabata# From Arthur David Olson (2008-09-29): 925376a7c81SRobbin Kawabata# The next is wrong in some years but is better than nothing. 926376a7c81SRobbin KawabataRule Brazil 2038 max - Feb Sun>=15 0:00 0 - 927376a7c81SRobbin Kawabata 9287c478bd9Sstevel@tonic-gate# The latest ruleset listed above says that the following states observe DST: 9297c478bd9Sstevel@tonic-gate# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 9307c478bd9Sstevel@tonic-gate 9317c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 9327c478bd9Sstevel@tonic-gate# 9337c478bd9Sstevel@tonic-gate# Fernando de Noronha (administratively part of PE) 9347c478bd9Sstevel@tonic-gateZone America/Noronha -2:09:40 - LMT 1914 935*dafc4501SDan McDonald -2:00 Brazil -02/-01 1990 Sep 17 936*dafc4501SDan McDonald -2:00 - -02 1999 Sep 30 937*dafc4501SDan McDonald -2:00 Brazil -02/-01 2000 Oct 15 938*dafc4501SDan McDonald -2:00 - -02 2001 Sep 13 939*dafc4501SDan McDonald -2:00 Brazil -02/-01 2002 Oct 1 940*dafc4501SDan McDonald -2:00 - -02 9417c478bd9Sstevel@tonic-gate# Other Atlantic islands have no permanent settlement. 9426f8e8937SDan McDonald# These include Trindade and Martim Vaz (administratively part of ES), 9436f8e8937SDan McDonald# Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). 9447c478bd9Sstevel@tonic-gate# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 9457c478bd9Sstevel@tonic-gate# it also included the Penedos. 9467c478bd9Sstevel@tonic-gate# 9476f8e8937SDan McDonald# Amapá (AP), east Pará (PA) 9486f8e8937SDan McDonald# East Pará includes Belém, Marabá, Serra Norte, and São Félix do Xingu. 9496f8e8937SDan McDonald# The division between east and west Pará is the river Xingu. 9507c478bd9Sstevel@tonic-gate# In the north a very small part from the river Javary (now Jari I guess, 9516f8e8937SDan McDonald# the border with Amapá) to the Amazon, then to the Xingu. 9527c478bd9Sstevel@tonic-gateZone America/Belem -3:13:56 - LMT 1914 953*dafc4501SDan McDonald -3:00 Brazil -03/-02 1988 Sep 12 954*dafc4501SDan McDonald -3:00 - -03 9557c478bd9Sstevel@tonic-gate# 9566f8e8937SDan McDonald# west Pará (PA) 9576f8e8937SDan McDonald# West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. 95856725381SrobbinZone America/Santarem -3:38:48 - LMT 1914 959*dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 960*dafc4501SDan McDonald -4:00 - -04 2008 Jun 24 0:00 961*dafc4501SDan McDonald -3:00 - -03 96256725381Srobbin# 9636f8e8937SDan McDonald# Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), 9646f8e8937SDan McDonald# Paraíba (PB) 9657c478bd9Sstevel@tonic-gateZone America/Fortaleza -2:34:00 - LMT 1914 966*dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 967*dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 968*dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 22 969*dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 970*dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 971*dafc4501SDan McDonald -3:00 - -03 9727c478bd9Sstevel@tonic-gate# 9737c478bd9Sstevel@tonic-gate# Pernambuco (PE) (except Atlantic islands) 9747c478bd9Sstevel@tonic-gateZone America/Recife -2:19:36 - LMT 1914 975*dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 976*dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 977*dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 15 978*dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 979*dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 980*dafc4501SDan McDonald -3:00 - -03 9817c478bd9Sstevel@tonic-gate# 9827c478bd9Sstevel@tonic-gate# Tocantins (TO) 9837c478bd9Sstevel@tonic-gateZone America/Araguaina -3:12:48 - LMT 1914 984*dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 985*dafc4501SDan McDonald -3:00 - -03 1995 Sep 14 986*dafc4501SDan McDonald -3:00 Brazil -03/-02 2003 Sep 24 987*dafc4501SDan McDonald -3:00 - -03 2012 Oct 21 988*dafc4501SDan McDonald -3:00 Brazil -03/-02 2013 Sep 989*dafc4501SDan McDonald -3:00 - -03 9907c478bd9Sstevel@tonic-gate# 9917c478bd9Sstevel@tonic-gate# Alagoas (AL), Sergipe (SE) 9927c478bd9Sstevel@tonic-gateZone America/Maceio -2:22:52 - LMT 1914 993*dafc4501SDan McDonald -3:00 Brazil -03/-02 1990 Sep 17 994*dafc4501SDan McDonald -3:00 - -03 1995 Oct 13 995*dafc4501SDan McDonald -3:00 Brazil -03/-02 1996 Sep 4 996*dafc4501SDan McDonald -3:00 - -03 1999 Sep 30 997*dafc4501SDan McDonald -3:00 Brazil -03/-02 2000 Oct 22 998*dafc4501SDan McDonald -3:00 - -03 2001 Sep 13 999*dafc4501SDan McDonald -3:00 Brazil -03/-02 2002 Oct 1 1000*dafc4501SDan McDonald -3:00 - -03 10017c478bd9Sstevel@tonic-gate# 10027c478bd9Sstevel@tonic-gate# Bahia (BA) 10037c478bd9Sstevel@tonic-gate# There are too many Salvadors elsewhere, so use America/Bahia instead 10047c478bd9Sstevel@tonic-gate# of America/Salvador. 10057c478bd9Sstevel@tonic-gateZone America/Bahia -2:34:04 - LMT 1914 1006*dafc4501SDan McDonald -3:00 Brazil -03/-02 2003 Sep 24 1007*dafc4501SDan McDonald -3:00 - -03 2011 Oct 16 1008*dafc4501SDan McDonald -3:00 Brazil -03/-02 2012 Oct 21 1009*dafc4501SDan McDonald -3:00 - -03 10107c478bd9Sstevel@tonic-gate# 10116f8e8937SDan McDonald# Goiás (GO), Distrito Federal (DF), Minas Gerais (MG), 10126f8e8937SDan McDonald# Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), 10137c478bd9Sstevel@tonic-gate# Santa Catarina (SC), Rio Grande do Sul (RS) 10147c478bd9Sstevel@tonic-gateZone America/Sao_Paulo -3:06:28 - LMT 1914 1015*dafc4501SDan McDonald -3:00 Brazil -03/-02 1963 Oct 23 0:00 1016*dafc4501SDan McDonald -3:00 1:00 -02 1964 1017*dafc4501SDan McDonald -3:00 Brazil -03/-02 10187c478bd9Sstevel@tonic-gate# 10197c478bd9Sstevel@tonic-gate# Mato Grosso do Sul (MS) 10207c478bd9Sstevel@tonic-gateZone America/Campo_Grande -3:38:28 - LMT 1914 1021*dafc4501SDan McDonald -4:00 Brazil -04/-03 10227c478bd9Sstevel@tonic-gate# 10237c478bd9Sstevel@tonic-gate# Mato Grosso (MT) 10247c478bd9Sstevel@tonic-gateZone America/Cuiaba -3:44:20 - LMT 1914 1025*dafc4501SDan McDonald -4:00 Brazil -04/-03 2003 Sep 24 1026*dafc4501SDan McDonald -4:00 - -04 2004 Oct 1 1027*dafc4501SDan McDonald -4:00 Brazil -04/-03 10287c478bd9Sstevel@tonic-gate# 10296f8e8937SDan McDonald# Rondônia (RO) 10307c478bd9Sstevel@tonic-gateZone America/Porto_Velho -4:15:36 - LMT 1914 1031*dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1032*dafc4501SDan McDonald -4:00 - -04 10337c478bd9Sstevel@tonic-gate# 10347c478bd9Sstevel@tonic-gate# Roraima (RR) 10357c478bd9Sstevel@tonic-gateZone America/Boa_Vista -4:02:40 - LMT 1914 1036*dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1037*dafc4501SDan McDonald -4:00 - -04 1999 Sep 30 1038*dafc4501SDan McDonald -4:00 Brazil -04/-03 2000 Oct 15 1039*dafc4501SDan McDonald -4:00 - -04 10407c478bd9Sstevel@tonic-gate# 10416f8e8937SDan McDonald# east Amazonas (AM): Boca do Acre, Jutaí, Manaus, Floriano Peixoto 10427c478bd9Sstevel@tonic-gate# The great circle line from Tabatinga to Porto Acre divides 10437c478bd9Sstevel@tonic-gate# east from west Amazonas. 10447c478bd9Sstevel@tonic-gateZone America/Manaus -4:00:04 - LMT 1914 1045*dafc4501SDan McDonald -4:00 Brazil -04/-03 1988 Sep 12 1046*dafc4501SDan McDonald -4:00 - -04 1993 Sep 28 1047*dafc4501SDan McDonald -4:00 Brazil -04/-03 1994 Sep 22 1048*dafc4501SDan McDonald -4:00 - -04 10497c478bd9Sstevel@tonic-gate# 10507c478bd9Sstevel@tonic-gate# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 10516f8e8937SDan McDonald# Eirunepé, Envira, Ipixuna 10527c478bd9Sstevel@tonic-gateZone America/Eirunepe -4:39:28 - LMT 1914 1053*dafc4501SDan McDonald -5:00 Brazil -05/-04 1988 Sep 12 1054*dafc4501SDan McDonald -5:00 - -05 1993 Sep 28 1055*dafc4501SDan McDonald -5:00 Brazil -05/-04 1994 Sep 22 1056*dafc4501SDan McDonald -5:00 - -05 2008 Jun 24 0:00 1057*dafc4501SDan McDonald -4:00 - -04 2013 Nov 10 1058*dafc4501SDan McDonald -5:00 - -05 10597c478bd9Sstevel@tonic-gate# 10607c478bd9Sstevel@tonic-gate# Acre (AC) 10617c478bd9Sstevel@tonic-gateZone America/Rio_Branco -4:31:12 - LMT 1914 1062*dafc4501SDan McDonald -5:00 Brazil -05/-04 1988 Sep 12 1063*dafc4501SDan McDonald -5:00 - -05 2008 Jun 24 0:00 1064*dafc4501SDan McDonald -4:00 - -04 2013 Nov 10 1065*dafc4501SDan McDonald -5:00 - -05 10667c478bd9Sstevel@tonic-gate 10677c478bd9Sstevel@tonic-gate# Chile 10687c478bd9Sstevel@tonic-gate 106956b82ca8SDan McDonald# From Paul Eggert (2015-04-03): 107056b82ca8SDan McDonald# Shanks & Pottenger says America/Santiago introduced standard time in 107156b82ca8SDan McDonald# 1890 and rounds its UTC offset to 70W40; guess that in practice this 107256b82ca8SDan McDonald# was the same offset as in 1916-1919. It also says Pacific/Easter 107356b82ca8SDan McDonald# standardized on 109W22 in 1890; assume this didn't change the clocks. 107456b82ca8SDan McDonald# 107556b82ca8SDan McDonald# Dates for America/Santiago from 1910 to 2004 are primarily from 107656b82ca8SDan McDonald# the following source, cited by Oscar van Vlijmen (2006-10-08): 107756b82ca8SDan McDonald# [1] Chile Law 107856b82ca8SDan McDonald# http://www.webexhibits.org/daylightsaving/chile.html 107956b82ca8SDan McDonald# This contains a copy of a this official table: 108056b82ca8SDan McDonald# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) 108156b82ca8SDan McDonald# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm 108256b82ca8SDan McDonald# [1] needs several corrections, though. 108356b82ca8SDan McDonald# 108456b82ca8SDan McDonald# The first set of corrections is from: 108556b82ca8SDan McDonald# [2] History of the Official Time of Chile 108656b82ca8SDan McDonald# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: 108756b82ca8SDan McDonald# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html 108856b82ca8SDan McDonald# This is an English translation of: 108956b82ca8SDan McDonald# Historia de la hora oficial de Chile (retrieved 2012-10-24). See: 109056b82ca8SDan McDonald# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm 109156b82ca8SDan McDonald# A fancier Spanish version (requiring mouse-clicking) is at: 109256b82ca8SDan McDonald# http://www.horaoficial.cl/historia_hora.html 109356b82ca8SDan McDonald# Conflicts between [1] and [2] were resolved as follows: 109456b82ca8SDan McDonald# 109556b82ca8SDan McDonald# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites 109656b82ca8SDan McDonald# Boletín No. 1, Aviso No. 1 (1910). Go with [2]. 109756b82ca8SDan McDonald# 109856b82ca8SDan McDonald# - [1] says SMT was -4:42:45, [2] says Chile's official time from 109956b82ca8SDan McDonald# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National 110056b82ca8SDan McDonald# Astronomical Observatory (OAN), then located in what is now 110156b82ca8SDan McDonald# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. 110256b82ca8SDan McDonald# 110356b82ca8SDan McDonald# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites 110456b82ca8SDan McDonald# Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. 110556b82ca8SDan McDonald# 110656b82ca8SDan McDonald# - [1] does not give times for transitions; assume they occur 110756b82ca8SDan McDonald# at midnight mainland time, the current common practice. However, 110856b82ca8SDan McDonald# go with [2]'s specification of 23:00 for the 1947-05-21 transition. 110956b82ca8SDan McDonald# 111056b82ca8SDan McDonald# Another correction to [1] is from Jesper Nørgaard Welen, who 111156b82ca8SDan McDonald# wrote (2006-10-08), "I think that there are some obvious mistakes in 111256b82ca8SDan McDonald# the suggested link from Oscar van Vlijmen,... for instance entry 66 111356b82ca8SDan McDonald# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at 111456b82ca8SDan McDonald# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 111556b82ca8SDan McDonald# respectively), but anyhow it clears up some doubts too." 111656b82ca8SDan McDonald# 111756b82ca8SDan McDonald# Data for Pacific/Easter from 1910 through 1967 come from Shanks & 111856b82ca8SDan McDonald# Pottenger. After that, for lack of better info assume 111956b82ca8SDan McDonald# Pacific/Easter is always two hours behind America/Santiago; 112056b82ca8SDan McDonald# this is known to work for DST transitions starting in 2008 and 112156b82ca8SDan McDonald# may well be true for earlier transitions. 112256b82ca8SDan McDonald 11237c478bd9Sstevel@tonic-gate# From Eduardo Krell (1995-10-19): 11247c478bd9Sstevel@tonic-gate# The law says to switch to DST at midnight [24:00] on the second SATURDAY 11257c478bd9Sstevel@tonic-gate# of October.... The law is the same for March and October. 11267c478bd9Sstevel@tonic-gate# (1998-09-29): 11277c478bd9Sstevel@tonic-gate# Because of the drought this year, the government decided to go into 11287c478bd9Sstevel@tonic-gate# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 11297c478bd9Sstevel@tonic-gate# (unless there's another dry season next year, I guess). 11307c478bd9Sstevel@tonic-gate 11317c478bd9Sstevel@tonic-gate# From Julio I. Pacheco Troncoso (1999-03-18): 11327c478bd9Sstevel@tonic-gate# Because of the same drought, the government decided to end DST later, 11337c478bd9Sstevel@tonic-gate# on April 3, (one-time change). 11347c478bd9Sstevel@tonic-gate 11356f8e8937SDan McDonald# From Germán Poo-Caamaño (2008-03-03): 11368593320bSrobbin# Due to drought, Chile extends Daylight Time in three weeks. This 11378593320bSrobbin# is one-time change (Saturday 3/29 at 24:00 for America/Santiago 11388593320bSrobbin# and Saturday 3/29 at 22:00 for Pacific/Easter) 1139a43ba736SRobert Mustacchi# The Supreme Decree is located at 11408593320bSrobbin# http://www.shoa.cl/servicios/supremo316.pdf 114156b82ca8SDan McDonald# 11426f8e8937SDan McDonald# From José Miguel Garrido (2008-03-05): 11438593320bSrobbin# http://www.shoa.cl/noticias/2008/04hora/hora.htm 11448593320bSrobbin 1145d8ff9d22SNobutomo Nakano# From Angel Chiang (2010-03-04): 1146d8ff9d22SNobutomo Nakano# Subject: DST in Chile exceptionally extended to 3 April due to earthquake 1147d8ff9d22SNobutomo Nakano# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 1148d8ff9d22SNobutomo Nakano# 11496f8e8937SDan McDonald# From Arthur David Olson (2010-03-06): 1150d8ff9d22SNobutomo Nakano# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. 1151d8ff9d22SNobutomo Nakano 1152abaa65c8SYuri Pankov# From Glenn Eychaner (2011-03-28): 1153abaa65c8SYuri Pankov# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} 1154abaa65c8SYuri Pankov# In English: 1155abaa65c8SYuri Pankov# Chile's clocks will go back an hour this year on the 7th of May instead 1156abaa65c8SYuri Pankov# of this Saturday. They will go forward again the 3rd Saturday in 115756b82ca8SDan McDonald# August, not in October as they have since 1968. 1158abaa65c8SYuri Pankov 1159a43ba736SRobert Mustacchi# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): 1160a43ba736SRobert Mustacchi# As stated in the website of the Chilean Energy Ministry 1161a43ba736SRobert Mustacchi# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html 1162a43ba736SRobert Mustacchi# The Chilean Government has decided to postpone the entrance into winter time 116356b82ca8SDan McDonald# (to leave DST) from March 11 2012 to April 28th 2012.... 1164a43ba736SRobert Mustacchi# Quote from the website communication: 1165a43ba736SRobert Mustacchi# 1166a43ba736SRobert Mustacchi# 6. For the year 2012, the dates of entry into winter time will be as follows: 1167a43ba736SRobert Mustacchi# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at 1168a43ba736SRobert Mustacchi# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 1169a43ba736SRobert Mustacchi# of the same day. 1170a43ba736SRobert Mustacchi# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, 1171a43ba736SRobert Mustacchi# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be 1172a43ba736SRobert Mustacchi# 01:00 on September 2. 1173a43ba736SRobert Mustacchi 1174a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-02-15): 1175a43ba736SRobert Mustacchi# According to several news sources, Chile has extended DST this year, 1176a43ba736SRobert Mustacchi# they will end DST later and start DST earlier than planned. They 1177a43ba736SRobert Mustacchi# hope to save energy. The new end date is 2013-04-28 00:00 and new 1178a43ba736SRobert Mustacchi# start date is 2013-09-08 00:00.... 1179a43ba736SRobert Mustacchi# http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm 1180a43ba736SRobert Mustacchi 11816f8e8937SDan McDonald# From José Miguel Garrido (2014-02-19): 11826f8e8937SDan McDonald# Today appeared in the Diario Oficial a decree amending the time change 11836f8e8937SDan McDonald# dates to 2014. 11846f8e8937SDan McDonald# DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) 11856f8e8937SDan McDonald# DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) 11866f8e8937SDan McDonald# http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf 11876f8e8937SDan McDonald 118856b82ca8SDan McDonald# From Eduardo Romero Urra (2015-03-03): 118956b82ca8SDan McDonald# Today has been published officially that Chile will use the DST time 119056b82ca8SDan McDonald# permanently until March 25 of 2017 119156b82ca8SDan McDonald# http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg 119256b82ca8SDan McDonald# 119356b82ca8SDan McDonald# From Paul Eggert (2015-03-03): 119456b82ca8SDan McDonald# For now, assume that the extension will persist indefinitely. 1195a43ba736SRobert Mustacchi 1196f63cc156SDan McDonald# From Juan Correa (2016-03-18): 1197f63cc156SDan McDonald# The decree regarding DST has been published in today's Official Gazette: 1198f63cc156SDan McDonald# http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ 1199f63cc156SDan McDonald# http://www.leychile.cl/Navegar?idNorma=1088502 1200f63cc156SDan McDonald# It does consider the second Saturday of May and August as the dates 1201f63cc156SDan McDonald# for the transition; and it lists DST dates until 2019, but I think 1202f63cc156SDan McDonald# this scheme will stick. 1203f63cc156SDan McDonald# 1204f63cc156SDan McDonald# From Paul Eggert (2016-03-18): 1205f63cc156SDan McDonald# For now, assume the pattern holds for the indefinite future. 1206f63cc156SDan McDonald# The decree says transitions occur at 24:00; in practice this appears 1207f63cc156SDan McDonald# to mean 24:00 mainland time, not 24:00 local time, so that Easter 1208f63cc156SDan McDonald# Island is always two hours behind the mainland. 1209f63cc156SDan McDonald 1210*dafc4501SDan McDonald# From Juan Correa (2016-12-04): 1211*dafc4501SDan McDonald# Magallanes region ... will keep DST (UTC -3) all year round.... 1212*dafc4501SDan 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 1213*dafc4501SDan McDonald# 1214*dafc4501SDan McDonald# From Deborah Goldsmith (2017-01-19): 1215*dafc4501SDan McDonald# http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf 1216*dafc4501SDan McDonald# From Paul Eggert (2017-01-19): 1217*dafc4501SDan McDonald# The above says the Magallanes change expires 2019-05-11 at 24:00, 1218*dafc4501SDan McDonald# so in theory, they will revert to -04/-03 after that, which means 1219*dafc4501SDan McDonald# they will switch from -03 to -04 one hour after Santiago does that day. 1220*dafc4501SDan McDonald# For now, assume that they will not revert. 1221*dafc4501SDan McDonald 12227c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 122356b82ca8SDan McDonaldRule Chile 1927 1931 - Sep 1 0:00 1:00 S 12247c478bd9Sstevel@tonic-gateRule Chile 1928 1932 - Apr 1 0:00 0 - 1225150c1068SrobbinRule Chile 1968 only - Nov 3 4:00u 1:00 S 1226150c1068SrobbinRule Chile 1969 only - Mar 30 3:00u 0 - 1227150c1068SrobbinRule Chile 1969 only - Nov 23 4:00u 1:00 S 1228150c1068SrobbinRule Chile 1970 only - Mar 29 3:00u 0 - 1229150c1068SrobbinRule Chile 1971 only - Mar 14 3:00u 0 - 1230150c1068SrobbinRule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S 1231150c1068SrobbinRule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1232150c1068SrobbinRule Chile 1973 only - Sep 30 4:00u 1:00 S 1233150c1068SrobbinRule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S 1234150c1068SrobbinRule Chile 1987 only - Apr 12 3:00u 0 - 123556b82ca8SDan McDonaldRule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - 123656b82ca8SDan McDonaldRule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S 1237150c1068SrobbinRule Chile 1990 only - Sep 16 4:00u 1:00 S 1238150c1068SrobbinRule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1239150c1068SrobbinRule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S 1240150c1068SrobbinRule Chile 1997 only - Mar 30 3:00u 0 - 1241150c1068SrobbinRule Chile 1998 only - Mar Sun>=9 3:00u 0 - 12427c478bd9Sstevel@tonic-gateRule Chile 1998 only - Sep 27 4:00u 1:00 S 12437c478bd9Sstevel@tonic-gateRule Chile 1999 only - Apr 4 3:00u 0 - 1244abaa65c8SYuri PankovRule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S 12458593320bSrobbinRule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 12468593320bSrobbin# N.B.: the end of March 29 in Chile is March 30 in Universal time, 12478593320bSrobbin# which is used below in specifying the transition. 12488593320bSrobbinRule Chile 2008 only - Mar 30 3:00u 0 - 1249d8ff9d22SNobutomo NakanoRule Chile 2009 only - Mar Sun>=9 3:00u 0 - 1250abaa65c8SYuri PankovRule Chile 2010 only - Apr Sun>=1 3:00u 0 - 1251abaa65c8SYuri PankovRule Chile 2011 only - May Sun>=2 3:00u 0 - 1252a43ba736SRobert MustacchiRule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S 1253f63cc156SDan McDonaldRule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - 125400973057SDan McDonaldRule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S 1255f63cc156SDan McDonaldRule Chile 2016 max - May Sun>=9 3:00u 0 - 1256f63cc156SDan McDonaldRule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S 1257150c1068Srobbin# IATA SSIM anomalies: (1992-02) says 1992-03-14; 12587c478bd9Sstevel@tonic-gate# (1996-09) says 1998-03-08. Ignore these. 12597c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1260150c1068SrobbinZone America/Santiago -4:42:46 - LMT 1890 126156b82ca8SDan McDonald -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time 1262*dafc4501SDan McDonald -5:00 - -05 1916 Jul 1 126356b82ca8SDan McDonald -4:42:46 - SMT 1918 Sep 10 1264*dafc4501SDan McDonald -4:00 - -04 1919 Jul 1 126556b82ca8SDan McDonald -4:42:46 - SMT 1927 Sep 1 1266*dafc4501SDan McDonald -5:00 Chile -05/-04 1932 Sep 1 1267*dafc4501SDan McDonald -4:00 - -04 1942 Jun 1 1268*dafc4501SDan McDonald -5:00 - -05 1942 Aug 1 1269*dafc4501SDan McDonald -4:00 - -04 1946 Jul 15 1270*dafc4501SDan McDonald -4:00 1:00 -03 1946 Sep 1 # central Chile 1271*dafc4501SDan McDonald -4:00 - -04 1947 Apr 1 1272*dafc4501SDan McDonald -5:00 - -05 1947 May 21 23:00 1273*dafc4501SDan McDonald -4:00 Chile -04/-03 1274*dafc4501SDan McDonaldZone America/Punta_Arenas -4:43:40 - LMT 1890 1275*dafc4501SDan McDonald -4:42:46 - SMT 1910 Jan 10 1276*dafc4501SDan McDonald -5:00 - -05 1916 Jul 1 1277*dafc4501SDan McDonald -4:42:46 - SMT 1918 Sep 10 1278*dafc4501SDan McDonald -4:00 - -04 1919 Jul 1 1279*dafc4501SDan McDonald -4:42:46 - SMT 1927 Sep 1 1280*dafc4501SDan McDonald -5:00 Chile -05/-04 1932 Sep 1 1281*dafc4501SDan McDonald -4:00 - -04 1942 Jun 1 1282*dafc4501SDan McDonald -5:00 - -05 1942 Aug 1 1283*dafc4501SDan McDonald -4:00 - -04 1947 Apr 1 1284*dafc4501SDan McDonald -5:00 - -05 1947 May 21 23:00 1285*dafc4501SDan McDonald -4:00 Chile -04/-03 2016 Dec 4 1286*dafc4501SDan McDonald -3:00 - -03 128756b82ca8SDan McDonaldZone Pacific/Easter -7:17:28 - LMT 1890 1288a68d064cSrobbin -7:17:28 - EMT 1932 Sep # Easter Mean Time 1289*dafc4501SDan McDonald -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time 1290*dafc4501SDan McDonald -6:00 Chile -06/-05 12917c478bd9Sstevel@tonic-gate# 12926f8e8937SDan McDonald# Salas y Gómez Island is uninhabited. 12936f8e8937SDan McDonald# Other Chilean locations, including Juan Fernández Is, Desventuradas Is, 12946f8e8937SDan McDonald# and Antarctic bases, are like America/Santiago. 12957c478bd9Sstevel@tonic-gate 129656b82ca8SDan McDonald# Antarctic base using South American rules 129756b82ca8SDan McDonald# (See the file 'antarctica' for more.) 129856b82ca8SDan McDonald# 129956b82ca8SDan McDonald# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) 130056b82ca8SDan McDonald# 130156b82ca8SDan McDonald# From Ethan Dicks (1996-10-06): 130256b82ca8SDan McDonald# It keeps the same time as Punta Arenas, Chile, because, just like us 130356b82ca8SDan McDonald# and the South Pole, that's the other end of their supply line.... 130456b82ca8SDan McDonald# I verified with someone who was there that since 1980, 130556b82ca8SDan McDonald# Palmer has followed Chile. Prior to that, before the Falklands War, 130656b82ca8SDan McDonald# Palmer used to be supplied from Argentina. 130756b82ca8SDan McDonald# 130856b82ca8SDan McDonald# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1309c2d5ab87SDan McDonaldZone Antarctica/Palmer 0 - -00 1965 1310*dafc4501SDan McDonald -4:00 Arg -04/-03 1969 Oct 5 1311*dafc4501SDan McDonald -3:00 Arg -03/-02 1982 May 1312*dafc4501SDan McDonald -4:00 Chile -04/-03 2016 Dec 4 1313*dafc4501SDan McDonald -3:00 - -03 131456b82ca8SDan McDonald 13157c478bd9Sstevel@tonic-gate# Colombia 1316a43ba736SRobert Mustacchi 13176f8e8937SDan McDonald# Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, 1318a43ba736SRobert Mustacchi# "A variation of fifteen minutes in the public clocks of Bogota is not rare." 1319a43ba736SRobert Mustacchi 13207c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 13212f9aa4a7SrobbinRule CO 1992 only - May 3 0:00 1:00 S 13222f9aa4a7SrobbinRule CO 1993 only - Apr 4 0:00 0 - 13237c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1324a43ba736SRobert MustacchiZone America/Bogota -4:56:16 - LMT 1884 Mar 13 13256f8e8937SDan McDonald -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time 1326*dafc4501SDan McDonald -5:00 CO -05/-04 13277c478bd9Sstevel@tonic-gate# Malpelo, Providencia, San Andres 13287c478bd9Sstevel@tonic-gate# no information; probably like America/Bogota 13297c478bd9Sstevel@tonic-gate 13306f8e8937SDan McDonald# Curaçao 1331a43ba736SRobert Mustacchi 13326f8e8937SDan McDonald# Milne gives 4:35:46.9 for Curaçao mean time; round to nearest. 13332f9aa4a7Srobbin# 1334a68d064cSrobbin# From Paul Eggert (2006-03-22): 13352f9aa4a7Srobbin# Shanks & Pottenger say that The Bottom and Philipsburg have been at 13362f9aa4a7Srobbin# -4:00 since standard time was introduced on 1912-03-02; and that 13372f9aa4a7Srobbin# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 13382f9aa4a7Srobbin# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 13396f8e8937SDan McDonald# Saba Island has been like Curaçao. 1340a68d064cSrobbin# This all predates our 1970 cutoff, though. 13412f9aa4a7Srobbin# 13426f8e8937SDan McDonald# By July 2007 Curaçao and St Maarten are planned to become 13432f9aa4a7Srobbin# associated states within the Netherlands, much like Aruba; 13442f9aa4a7Srobbin# Bonaire, Saba and St Eustatius would become directly part of the 13452f9aa4a7Srobbin# Netherlands as Kingdom Islands. This won't affect their time zones 13462f9aa4a7Srobbin# though, as far as we know. 1347a68d064cSrobbin# 13487c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13496f8e8937SDan McDonaldZone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad 1350*dafc4501SDan McDonald -4:30 - -0430 1965 13517c478bd9Sstevel@tonic-gate -4:00 - AST 13527c478bd9Sstevel@tonic-gate 1353abaa65c8SYuri Pankov# From Arthur David Olson (2011-06-15): 1354a43ba736SRobert Mustacchi# use links for places with new iso3166 codes. 13556f8e8937SDan McDonald# The name "Lower Prince's Quarter" is both longer than fourteen characters 1356abaa65c8SYuri Pankov# and contains an apostrophe; use "Lower_Princes" below. 1357abaa65c8SYuri Pankov 1358a43ba736SRobert MustacchiLink America/Curacao America/Lower_Princes # Sint Maarten 1359a43ba736SRobert MustacchiLink America/Curacao America/Kralendijk # Caribbean Netherlands 1360abaa65c8SYuri Pankov 13617c478bd9Sstevel@tonic-gate# Ecuador 1362a68d064cSrobbin# 13636f8e8937SDan McDonald# Milne says the Central and South American Telegraph Company used -5:24:15. 1364a43ba736SRobert Mustacchi# 1365*dafc4501SDan McDonald# From Alois Treindl (2016-12-15): 1366*dafc4501SDan McDonald# http://www.elcomercio.com/actualidad/hora-sixto-1993.html 1367*dafc4501SDan McDonald# ... Whether the law applied also to Galápagos, I do not know. 1368*dafc4501SDan McDonald# From Paul Eggert (2016-12-15): 1369*dafc4501SDan McDonald# http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html 1370*dafc4501SDan McDonald# This says President Sixto Durán Ballén signed decree No. 285, which 1371*dafc4501SDan McDonald# established DST from 1992-11-28 to 1993-02-05; it does not give transition 1372*dafc4501SDan McDonald# times. The people called it "hora de Sixto" ("Sixto hour"). The change did 1373*dafc4501SDan McDonald# not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics 1374*dafc4501SDan McDonald# that included "Amanecía en mitad de la noche, los guaguas iban a clase sin 1375*dafc4501SDan McDonald# sol" ("It was dawning in the middle of the night, the buses went to class 1376*dafc4501SDan McDonald# without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" 1377*dafc4501SDan McDonald# (Not one step back), the clocks went back in 1993 and the experiment was not 1378*dafc4501SDan McDonald# repeated. For now, assume transitions were at 00:00 local time country-wide. 1379*dafc4501SDan McDonald# 1380*dafc4501SDan McDonald# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1381*dafc4501SDan McDonaldRule Ecuador 1992 only - Nov 28 0:00 1:00 S 1382*dafc4501SDan McDonaldRule Ecuador 1993 only - Feb 5 0:00 0 - 1383a68d064cSrobbin# 13847c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13857c478bd9Sstevel@tonic-gateZone America/Guayaquil -5:19:20 - LMT 1890 13867c478bd9Sstevel@tonic-gate -5:14:00 - QMT 1931 # Quito Mean Time 1387*dafc4501SDan McDonald -5:00 Ecuador -05/-04 13887c478bd9Sstevel@tonic-gateZone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 1389*dafc4501SDan McDonald -5:00 - -05 1986 1390*dafc4501SDan McDonald -6:00 Ecuador -06/-05 13917c478bd9Sstevel@tonic-gate 13927c478bd9Sstevel@tonic-gate# Falklands 13937c478bd9Sstevel@tonic-gate 13942f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 13952f9aa4a7Srobbin# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 13962f9aa4a7Srobbin# the IATA gives 1996-09-08. Go with Shanks & Pottenger. 13977c478bd9Sstevel@tonic-gate 13987c478bd9Sstevel@tonic-gate# From Falkland Islands Government Office, London (2001-01-22) 13996f8e8937SDan McDonald# via Jesper Nørgaard: 14007c478bd9Sstevel@tonic-gate# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 14017c478bd9Sstevel@tonic-gate# April 2001 and advance one hour to summer time at 2 am on Sunday 2 14027c478bd9Sstevel@tonic-gate# September. It is anticipated that the clocks will revert back at 2 14037c478bd9Sstevel@tonic-gate# am on Sunday 21 April 2002 and advance to summer time at 2 am on 14047c478bd9Sstevel@tonic-gate# Sunday 1 September. 14057c478bd9Sstevel@tonic-gate 14067c478bd9Sstevel@tonic-gate# From Rives McDow (2001-02-13): 14077c478bd9Sstevel@tonic-gate# 14087c478bd9Sstevel@tonic-gate# I have communicated several times with people there, and the last 14097c478bd9Sstevel@tonic-gate# time I had communications that was helpful was in 1998. Here is 14107c478bd9Sstevel@tonic-gate# what was said then: 14117c478bd9Sstevel@tonic-gate# 14127c478bd9Sstevel@tonic-gate# "The general rule was that Stanley used daylight saving and the Camp 14137c478bd9Sstevel@tonic-gate# did not. However for various reasons many people in the Camp have 14147c478bd9Sstevel@tonic-gate# started to use daylight saving (known locally as 'Stanley Time') 14157c478bd9Sstevel@tonic-gate# There is no rule as to who uses daylight saving - it is a matter of 14167c478bd9Sstevel@tonic-gate# personal choice and so it is impossible to draw a map showing who 14177c478bd9Sstevel@tonic-gate# uses it and who does not. Any list would be out of date as soon as 14187c478bd9Sstevel@tonic-gate# it was produced. This year daylight saving ended on April 18/19th 14197c478bd9Sstevel@tonic-gate# and started again on September 12/13th. I do not know what the rule 14207c478bd9Sstevel@tonic-gate# is, but can find out if you like. We do not change at the same time 14217c478bd9Sstevel@tonic-gate# as UK or Chile." 14227c478bd9Sstevel@tonic-gate# 14237c478bd9Sstevel@tonic-gate# I did have in my notes that the rule was "Second Saturday in Sep at 14247c478bd9Sstevel@tonic-gate# 0:00 until third Saturday in Apr at 0:00". I think that this does 14257c478bd9Sstevel@tonic-gate# not agree in some cases with Shanks; is this true? 14267c478bd9Sstevel@tonic-gate# 14277c478bd9Sstevel@tonic-gate# Also, there is no mention in the list that some areas in the 14287c478bd9Sstevel@tonic-gate# Falklands do not use DST. I have found in my communications there 14297c478bd9Sstevel@tonic-gate# that these areas are on the western half of East Falkland and all of 14307c478bd9Sstevel@tonic-gate# West Falkland. Stanley is the only place that consistently observes 14317c478bd9Sstevel@tonic-gate# DST. Again, as in other places in the world, the farmers don't like 14327c478bd9Sstevel@tonic-gate# it. West Falkland is almost entirely sheep farmers. 14337c478bd9Sstevel@tonic-gate# 14347c478bd9Sstevel@tonic-gate# I know one lady there that keeps a list of which farm keeps DST and 14357c478bd9Sstevel@tonic-gate# which doesn't each year. She runs a shop in Stanley, and says that 14367c478bd9Sstevel@tonic-gate# the list changes each year. She uses it to communicate to her 14377c478bd9Sstevel@tonic-gate# customers, catching them when they are home for lunch or dinner. 14387c478bd9Sstevel@tonic-gate 14397c478bd9Sstevel@tonic-gate# From Paul Eggert (2001-03-05): 14407c478bd9Sstevel@tonic-gate# For now, we'll just record the time in Stanley, since we have no 14417c478bd9Sstevel@tonic-gate# better info. 14427c478bd9Sstevel@tonic-gate 1443abaa65c8SYuri Pankov# From Steffen Thorsen (2011-04-01): 1444abaa65c8SYuri Pankov# The Falkland Islands will not turn back clocks this winter, but stay on 1445abaa65c8SYuri Pankov# daylight saving time. 1446abaa65c8SYuri Pankov# 1447abaa65c8SYuri Pankov# One source: 1448abaa65c8SYuri Pankov# http://www.falklandnews.com/public/story.cfm?get=5914&source=3 1449abaa65c8SYuri Pankov# 1450abaa65c8SYuri Pankov# We have gotten this confirmed by a clerk of the legislative assembly: 1451abaa65c8SYuri Pankov# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the 1452abaa65c8SYuri Pankov# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 1453abaa65c8SYuri Pankov# hours) on the first Sunday of September at 0200hrs. 1454abaa65c8SYuri Pankov# 1455abaa65c8SYuri Pankov# IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands 1456abaa65c8SYuri Pankov# will not revert to local mean time, but clocks will remain on Summer 1457abaa65c8SYuri Pankov# time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term 1458abaa65c8SYuri Pankov# change to local time following the trial period will be notified. 1459a43ba736SRobert Mustacchi# 1460a43ba736SRobert Mustacchi# From Andrew Newman (2012-02-24) 1461a43ba736SRobert Mustacchi# A letter from Justin McPhee, Chief Executive, 1462a43ba736SRobert Mustacchi# Cable & Wireless Falkland Islands (dated 2012-02-22) 1463a43ba736SRobert Mustacchi# states... 1464a43ba736SRobert Mustacchi# The current Atlantic/Stanley entry under South America expects the 1465a43ba736SRobert Mustacchi# clocks to go back to standard Falklands Time (FKT) on the 15th April. 1466a43ba736SRobert Mustacchi# The database entry states that in 2011 Stanley was staying on fixed 1467a43ba736SRobert Mustacchi# summer time on a trial basis only. FIG need to contact IANA and/or 1468a43ba736SRobert Mustacchi# the maintainers of the database to inform them we're adopting 1469a43ba736SRobert Mustacchi# the same policy this year and suggest recommendations for future years. 1470a43ba736SRobert Mustacchi# 1471a43ba736SRobert Mustacchi# For now we will assume permanent summer time for the Falklands 1472a43ba736SRobert Mustacchi# until advised differently (to apply for 2012 and beyond, after the 2011 1473a43ba736SRobert Mustacchi# experiment was apparently successful.) 14747c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 14757c478bd9Sstevel@tonic-gateRule Falk 1937 1938 - Sep lastSun 0:00 1:00 S 14767c478bd9Sstevel@tonic-gateRule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 14777c478bd9Sstevel@tonic-gateRule Falk 1939 only - Oct 1 0:00 1:00 S 14787c478bd9Sstevel@tonic-gateRule Falk 1940 1942 - Sep lastSun 0:00 1:00 S 14797c478bd9Sstevel@tonic-gateRule Falk 1943 only - Jan 1 0:00 0 - 14807c478bd9Sstevel@tonic-gateRule Falk 1983 only - Sep lastSun 0:00 1:00 S 14817c478bd9Sstevel@tonic-gateRule Falk 1984 1985 - Apr lastSun 0:00 0 - 14827c478bd9Sstevel@tonic-gateRule Falk 1984 only - Sep 16 0:00 1:00 S 14837c478bd9Sstevel@tonic-gateRule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S 14847c478bd9Sstevel@tonic-gateRule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 1485abaa65c8SYuri PankovRule Falk 2001 2010 - Apr Sun>=15 2:00 0 - 1486a43ba736SRobert MustacchiRule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S 14877c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14887c478bd9Sstevel@tonic-gateZone Atlantic/Stanley -3:51:24 - LMT 1890 14896f8e8937SDan McDonald -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 1490*dafc4501SDan McDonald -4:00 Falk -04/-03 1983 May 1491*dafc4501SDan McDonald -3:00 Falk -03/-02 1985 Sep 15 1492*dafc4501SDan McDonald -4:00 Falk -04/-03 2010 Sep 5 2:00 1493*dafc4501SDan McDonald -3:00 - -03 14947c478bd9Sstevel@tonic-gate 14957c478bd9Sstevel@tonic-gate# French Guiana 14967c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14977c478bd9Sstevel@tonic-gateZone America/Cayenne -3:29:20 - LMT 1911 Jul 1498*dafc4501SDan McDonald -4:00 - -04 1967 Oct 1499*dafc4501SDan McDonald -3:00 - -03 15007c478bd9Sstevel@tonic-gate 15017c478bd9Sstevel@tonic-gate# Guyana 15027c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15036f8e8937SDan McDonaldZone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 1504*dafc4501SDan McDonald -3:45 - -0345 1975 Jul 31 1505*dafc4501SDan McDonald -3:00 - -03 1991 15067c478bd9Sstevel@tonic-gate# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 1507*dafc4501SDan McDonald -4:00 - -04 15087c478bd9Sstevel@tonic-gate 15097c478bd9Sstevel@tonic-gate# Paraguay 1510a43ba736SRobert Mustacchi# 15112f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 15126f8e8937SDan McDonald# Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, 15136f8e8937SDan McDonald# and autumn transitions are 00:00 -> 23:00. Go with pre-1999 15147c478bd9Sstevel@tonic-gate# editions of Shanks, and with the IATA, who say transitions occur at 00:00. 1515a43ba736SRobert Mustacchi# 1516a43ba736SRobert Mustacchi# From Waldemar Villamayor-Venialbo (2013-09-20): 1517a43ba736SRobert Mustacchi# No time of the day is established for the adjustment, so people normally 1518a43ba736SRobert Mustacchi# adjust their clocks at 0 hour of the given dates. 1519a43ba736SRobert Mustacchi# 15207c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 15217c478bd9Sstevel@tonic-gateRule Para 1975 1988 - Oct 1 0:00 1:00 S 15227c478bd9Sstevel@tonic-gateRule Para 1975 1978 - Mar 1 0:00 0 - 15237c478bd9Sstevel@tonic-gateRule Para 1979 1991 - Apr 1 0:00 0 - 15247c478bd9Sstevel@tonic-gateRule Para 1989 only - Oct 22 0:00 1:00 S 15257c478bd9Sstevel@tonic-gateRule Para 1990 only - Oct 1 0:00 1:00 S 15267c478bd9Sstevel@tonic-gateRule Para 1991 only - Oct 6 0:00 1:00 S 15277c478bd9Sstevel@tonic-gateRule Para 1992 only - Mar 1 0:00 0 - 15287c478bd9Sstevel@tonic-gateRule Para 1992 only - Oct 5 0:00 1:00 S 15297c478bd9Sstevel@tonic-gateRule Para 1993 only - Mar 31 0:00 0 - 15307c478bd9Sstevel@tonic-gateRule Para 1993 1995 - Oct 1 0:00 1:00 S 15317c478bd9Sstevel@tonic-gateRule Para 1994 1995 - Feb lastSun 0:00 0 - 15327c478bd9Sstevel@tonic-gateRule Para 1996 only - Mar 1 0:00 0 - 15337c478bd9Sstevel@tonic-gate# IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 15347c478bd9Sstevel@tonic-gate# From Steffen Thorsen (2000-10-02): 15357c478bd9Sstevel@tonic-gate# I have three independent reports that Paraguay changed to DST this Sunday 15367c478bd9Sstevel@tonic-gate# (10-01). 15377c478bd9Sstevel@tonic-gate# 15387c478bd9Sstevel@tonic-gate# Translated by Gwillim Law (2001-02-27) from 15396f8e8937SDan McDonald# Noticias, a daily paper in Asunción, Paraguay (2000-10-01): 15406f8e8937SDan McDonald# http://www.diarionoticias.com.py/011000/nacional/naciona1.htm 15417c478bd9Sstevel@tonic-gate# Starting at 0:00 today, the clock will be set forward 60 minutes, in 15427c478bd9Sstevel@tonic-gate# fulfillment of Decree No. 7,273 of the Executive Power.... The time change 15437c478bd9Sstevel@tonic-gate# system has been operating for several years. Formerly there was a separate 15447c478bd9Sstevel@tonic-gate# decree each year; the new law has the same effect, but permanently. Every 15457c478bd9Sstevel@tonic-gate# year, the time will change on the first Sunday of October; likewise, the 15467c478bd9Sstevel@tonic-gate# clock will be set back on the first Sunday of March. 15477c478bd9Sstevel@tonic-gate# 15487c478bd9Sstevel@tonic-gateRule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S 15492f9aa4a7Srobbin# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 15507c478bd9Sstevel@tonic-gateRule Para 1997 only - Feb lastSun 0:00 0 - 15512f9aa4a7Srobbin# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 15527c478bd9Sstevel@tonic-gate# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 15537c478bd9Sstevel@tonic-gateRule Para 1998 2001 - Mar Sun>=1 0:00 0 - 15547c478bd9Sstevel@tonic-gate# From Rives McDow (2002-02-28): 155556b82ca8SDan McDonald# A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the 15567c478bd9Sstevel@tonic-gate# dst method to be from the first Sunday in September to the first Sunday in 15577c478bd9Sstevel@tonic-gate# April. 155880868c53SrobbinRule Para 2002 2004 - Apr Sun>=1 0:00 0 - 155980868c53SrobbinRule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S 156080868c53Srobbin# 15616f8e8937SDan McDonald# From Jesper Nørgaard Welen (2005-01-02): 156280868c53Srobbin# There are several sources that claim that Paraguay made 156380868c53Srobbin# a timezone rule change in autumn 2004. 156480868c53Srobbin# From Steffen Thorsen (2005-01-05): 1565150c1068Srobbin# Decree 1,867 (2004-03-05) 15666f8e8937SDan McDonald# From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) 15676f8e8937SDan McDonald# http://www.presidencia.gov.py/decretos/D1867.pdf 1568d8ff9d22SNobutomo NakanoRule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S 1569d8ff9d22SNobutomo NakanoRule Para 2005 2009 - Mar Sun>=8 0:00 0 - 15706f8e8937SDan McDonald# From Carlos Raúl Perasso (2010-02-18): 15716f8e8937SDan McDonald# By decree number 3958 issued yesterday 1572d8ff9d22SNobutomo Nakano# http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf 1573d8ff9d22SNobutomo Nakano# Paraguay changes its DST schedule, postponing the March rule to April and 1574d8ff9d22SNobutomo Nakano# modifying the October date. The decree reads: 1575d8ff9d22SNobutomo Nakano# ... 1576d8ff9d22SNobutomo Nakano# Art. 1. It is hereby established that from the second Sunday of the month of 1577d8ff9d22SNobutomo Nakano# April of this year (2010), the official time is to be set back 60 minutes, 1578d8ff9d22SNobutomo Nakano# and that on the first Sunday of the month of October, it is to be set 1579d8ff9d22SNobutomo Nakano# forward 60 minutes, in all the territory of the Paraguayan Republic. 1580d8ff9d22SNobutomo Nakano# ... 1581d8ff9d22SNobutomo NakanoRule Para 2010 max - Oct Sun>=1 0:00 1:00 S 1582a43ba736SRobert MustacchiRule Para 2010 2012 - Apr Sun>=8 0:00 0 - 1583a43ba736SRobert Mustacchi# 1584a43ba736SRobert Mustacchi# From Steffen Thorsen (2013-03-07): 1585a43ba736SRobert Mustacchi# Paraguay will end DST on 2013-03-24 00:00.... 1586a43ba736SRobert Mustacchi# http://www.ande.gov.py/interna.php?id=1075 1587a43ba736SRobert Mustacchi# 15886f8e8937SDan McDonald# From Carlos Raúl Perasso (2013-03-15): 1589a43ba736SRobert Mustacchi# The change in Paraguay is now final. Decree number 10780 1590a43ba736SRobert Mustacchi# http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf 15916f8e8937SDan McDonald# From Carlos Raúl Perasso (2014-02-28): 15926f8e8937SDan McDonald# Decree 1264 can be found at: 15936f8e8937SDan McDonald# http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf 1594a43ba736SRobert MustacchiRule Para 2013 max - Mar Sun>=22 0:00 0 - 15957c478bd9Sstevel@tonic-gate 15967c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15977c478bd9Sstevel@tonic-gateZone America/Asuncion -3:50:40 - LMT 1890 15986f8e8937SDan McDonald -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time 1599*dafc4501SDan McDonald -4:00 - -04 1972 Oct 1600*dafc4501SDan McDonald -3:00 - -03 1974 Apr 1601*dafc4501SDan McDonald -4:00 Para -04/-03 16027c478bd9Sstevel@tonic-gate 16037c478bd9Sstevel@tonic-gate# Peru 16047c478bd9Sstevel@tonic-gate# 16056f8e8937SDan McDonald# From Evelyn C. Leeper via Mark Brader (2003-10-26) 16066f8e8937SDan McDonald# <news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net>: 160780868c53Srobbin# When we were in Peru in 1985-1986, they apparently switched over 16087c478bd9Sstevel@tonic-gate# sometime between December 29 and January 3 while we were on the Amazon. 16097c478bd9Sstevel@tonic-gate# 16102f9aa4a7Srobbin# From Paul Eggert (2006-03-22): 16112f9aa4a7Srobbin# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 16127c478bd9Sstevel@tonic-gate 16137c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 16147c478bd9Sstevel@tonic-gateRule Peru 1938 only - Jan 1 0:00 1:00 S 16157c478bd9Sstevel@tonic-gateRule Peru 1938 only - Apr 1 0:00 0 - 16167c478bd9Sstevel@tonic-gateRule Peru 1938 1939 - Sep lastSun 0:00 1:00 S 16177c478bd9Sstevel@tonic-gateRule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 16187c478bd9Sstevel@tonic-gateRule Peru 1986 1987 - Jan 1 0:00 1:00 S 16197c478bd9Sstevel@tonic-gateRule Peru 1986 1987 - Apr 1 0:00 0 - 16207c478bd9Sstevel@tonic-gateRule Peru 1990 only - Jan 1 0:00 1:00 S 16217c478bd9Sstevel@tonic-gateRule Peru 1990 only - Apr 1 0:00 0 - 16222f9aa4a7Srobbin# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 16237c478bd9Sstevel@tonic-gateRule Peru 1994 only - Jan 1 0:00 1:00 S 16247c478bd9Sstevel@tonic-gateRule Peru 1994 only - Apr 1 0:00 0 - 16257c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16267c478bd9Sstevel@tonic-gateZone America/Lima -5:08:12 - LMT 1890 16277c478bd9Sstevel@tonic-gate -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 1628*dafc4501SDan McDonald -5:00 Peru -05/-04 16297c478bd9Sstevel@tonic-gate 16307c478bd9Sstevel@tonic-gate# South Georgia 16317c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16326f8e8937SDan McDonaldZone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 1633*dafc4501SDan McDonald -2:00 - -02 16347c478bd9Sstevel@tonic-gate 16357c478bd9Sstevel@tonic-gate# South Sandwich Is 16367c478bd9Sstevel@tonic-gate# uninhabited; scientific personnel have wintered 16377c478bd9Sstevel@tonic-gate 16387c478bd9Sstevel@tonic-gate# Suriname 16397c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16407c478bd9Sstevel@tonic-gateZone America/Paramaribo -3:40:40 - LMT 1911 16417c478bd9Sstevel@tonic-gate -3:40:52 - PMT 1935 # Paramaribo Mean Time 16426f8e8937SDan McDonald -3:40:36 - PMT 1945 Oct # The capital moved? 1643*dafc4501SDan McDonald -3:30 - -0330 1984 Oct 1644*dafc4501SDan McDonald -3:00 - -03 16457c478bd9Sstevel@tonic-gate 16467c478bd9Sstevel@tonic-gate# Trinidad and Tobago 16477c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16487c478bd9Sstevel@tonic-gateZone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 16497c478bd9Sstevel@tonic-gate -4:00 - AST 16507c478bd9Sstevel@tonic-gate 16516f8e8937SDan McDonald# These all agree with Trinidad and Tobago since 1970. 1652a43ba736SRobert MustacchiLink America/Port_of_Spain America/Anguilla 165356b82ca8SDan McDonaldLink America/Port_of_Spain America/Antigua 1654a43ba736SRobert MustacchiLink America/Port_of_Spain America/Dominica 1655a43ba736SRobert MustacchiLink America/Port_of_Spain America/Grenada 1656a43ba736SRobert MustacchiLink America/Port_of_Spain America/Guadeloupe 16576f8e8937SDan McDonaldLink America/Port_of_Spain America/Marigot # St Martin (French part) 1658a43ba736SRobert MustacchiLink America/Port_of_Spain America/Montserrat 16596f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Barthelemy # St Barthélemy 16606f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Kitts # St Kitts & Nevis 1661a43ba736SRobert MustacchiLink America/Port_of_Spain America/St_Lucia 16626f8e8937SDan McDonaldLink America/Port_of_Spain America/St_Thomas # Virgin Islands (US) 1663a43ba736SRobert MustacchiLink America/Port_of_Spain America/St_Vincent 16646f8e8937SDan McDonaldLink America/Port_of_Spain America/Tortola # Virgin Islands (UK) 1665a43ba736SRobert Mustacchi 16667c478bd9Sstevel@tonic-gate# Uruguay 166780868c53Srobbin# From Paul Eggert (1993-11-18): 16687c478bd9Sstevel@tonic-gate# Uruguay wins the prize for the strangest peacetime manipulation of the rules. 16692f9aa4a7Srobbin# From Shanks & Pottenger: 16707c478bd9Sstevel@tonic-gate# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 16712f9aa4a7Srobbin# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. 16727c478bd9Sstevel@tonic-gateRule Uruguay 1923 only - Oct 2 0:00 0:30 HS 16737c478bd9Sstevel@tonic-gateRule Uruguay 1924 1926 - Apr 1 0:00 0 - 16747c478bd9Sstevel@tonic-gateRule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS 16757c478bd9Sstevel@tonic-gateRule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS 16762f9aa4a7Srobbin# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. 16777c478bd9Sstevel@tonic-gateRule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - 16787c478bd9Sstevel@tonic-gateRule Uruguay 1936 only - Nov 1 0:00 0:30 HS 16797c478bd9Sstevel@tonic-gateRule Uruguay 1937 1941 - Mar lastSun 0:00 0 - 16802f9aa4a7Srobbin# Whitman gives 1937 Oct 3; go with Shanks & Pottenger. 16817c478bd9Sstevel@tonic-gateRule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS 16827c478bd9Sstevel@tonic-gate# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, 1683a43ba736SRobert Mustacchi# and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. 16842f9aa4a7SrobbinRule Uruguay 1941 only - Aug 1 0:00 0:30 HS 16852f9aa4a7SrobbinRule Uruguay 1942 only - Jan 1 0:00 0 - 16867c478bd9Sstevel@tonic-gateRule Uruguay 1942 only - Dec 14 0:00 1:00 S 16877c478bd9Sstevel@tonic-gateRule Uruguay 1943 only - Mar 14 0:00 0 - 16887c478bd9Sstevel@tonic-gateRule Uruguay 1959 only - May 24 0:00 1:00 S 16897c478bd9Sstevel@tonic-gateRule Uruguay 1959 only - Nov 15 0:00 0 - 16907c478bd9Sstevel@tonic-gateRule Uruguay 1960 only - Jan 17 0:00 1:00 S 16917c478bd9Sstevel@tonic-gateRule Uruguay 1960 only - Mar 6 0:00 0 - 16927c478bd9Sstevel@tonic-gateRule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S 16937c478bd9Sstevel@tonic-gateRule Uruguay 1965 only - Sep 26 0:00 0 - 16947c478bd9Sstevel@tonic-gateRule Uruguay 1966 1967 - Oct 31 0:00 0 - 16957c478bd9Sstevel@tonic-gateRule Uruguay 1968 1970 - May 27 0:00 0:30 HS 16967c478bd9Sstevel@tonic-gateRule Uruguay 1968 1970 - Dec 2 0:00 0 - 16977c478bd9Sstevel@tonic-gateRule Uruguay 1972 only - Apr 24 0:00 1:00 S 16987c478bd9Sstevel@tonic-gateRule Uruguay 1972 only - Aug 15 0:00 0 - 16997c478bd9Sstevel@tonic-gateRule Uruguay 1974 only - Mar 10 0:00 0:30 HS 17007c478bd9Sstevel@tonic-gateRule Uruguay 1974 only - Dec 22 0:00 1:00 S 17017c478bd9Sstevel@tonic-gateRule Uruguay 1976 only - Oct 1 0:00 0 - 17027c478bd9Sstevel@tonic-gateRule Uruguay 1977 only - Dec 4 0:00 1:00 S 17037c478bd9Sstevel@tonic-gateRule Uruguay 1978 only - Apr 1 0:00 0 - 17047c478bd9Sstevel@tonic-gateRule Uruguay 1979 only - Oct 1 0:00 1:00 S 17057c478bd9Sstevel@tonic-gateRule Uruguay 1980 only - May 1 0:00 0 - 17067c478bd9Sstevel@tonic-gateRule Uruguay 1987 only - Dec 14 0:00 1:00 S 17077c478bd9Sstevel@tonic-gateRule Uruguay 1988 only - Mar 14 0:00 0 - 17087c478bd9Sstevel@tonic-gateRule Uruguay 1988 only - Dec 11 0:00 1:00 S 17097c478bd9Sstevel@tonic-gateRule Uruguay 1989 only - Mar 12 0:00 0 - 17107c478bd9Sstevel@tonic-gateRule Uruguay 1989 only - Oct 29 0:00 1:00 S 17112f9aa4a7Srobbin# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, 17127c478bd9Sstevel@tonic-gate# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. 17137c478bd9Sstevel@tonic-gateRule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - 17147c478bd9Sstevel@tonic-gateRule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S 17157c478bd9Sstevel@tonic-gateRule Uruguay 1992 only - Oct 18 0:00 1:00 S 17167c478bd9Sstevel@tonic-gateRule Uruguay 1993 only - Feb 28 0:00 0 - 17177c478bd9Sstevel@tonic-gate# From Eduardo Cota (2004-09-20): 17186f8e8937SDan McDonald# The Uruguayan government has decreed a change in the local time.... 17197c478bd9Sstevel@tonic-gate# http://www.presidencia.gub.uy/decretos/2004091502.htm 172080868c53SrobbinRule Uruguay 2004 only - Sep 19 0:00 1:00 S 172180868c53Srobbin# From Steffen Thorsen (2005-03-11): 172280868c53Srobbin# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 172380868c53Srobbin# save energy ... it was postponed two weeks.... 172480868c53Srobbin# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm 172580868c53SrobbinRule Uruguay 2005 only - Mar 27 2:00 0 - 172680868c53Srobbin# From Eduardo Cota (2005-09-27): 172780868c53Srobbin# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF 172880868c53Srobbin# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at 172980868c53Srobbin# 02:00 local time, official time in Uruguay will be at GMT -2. 173080868c53SrobbinRule Uruguay 2005 only - Oct 9 2:00 1:00 S 173180868c53SrobbinRule Uruguay 2006 only - Mar 12 2:00 0 - 17326f8e8937SDan McDonald# From Jesper Nørgaard Welen (2006-09-06): 17332f9aa4a7Srobbin# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF 173456b82ca8SDan McDonald# 173556b82ca8SDan McDonald# From Steffen Thorsen (2015-06-30): 173656b82ca8SDan McDonald# ... it looks like they will not be using DST the coming summer: 173756b82ca8SDan McDonald# http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 173856b82ca8SDan McDonald# http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ 173956b82ca8SDan McDonald# From Paul Eggert (2015-06-30): 174056b82ca8SDan McDonald# Apparently restaurateurs complained that DST caused people to go to the beach 174156b82ca8SDan McDonald# instead of out to dinner. 174256b82ca8SDan McDonald# From Pablo Camargo (2015-07-13): 174356b82ca8SDan McDonald# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf 174456b82ca8SDan McDonald# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] 174556b82ca8SDan McDonaldRule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S 174656b82ca8SDan McDonaldRule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - 1747*dafc4501SDan McDonald 1748*dafc4501SDan McDonald# This Zone can be simplified once we assume zic %z. 17497c478bd9Sstevel@tonic-gateZone America/Montevideo -3:44:44 - LMT 1898 Jun 28 17506f8e8937SDan McDonald -3:44:44 - MMT 1920 May 1 # Montevideo MT 1751*dafc4501SDan McDonald -3:30 Uruguay -0330/-03 1942 Dec 14 1752*dafc4501SDan McDonald -3:00 Uruguay -03/-02 1968 1753*dafc4501SDan McDonald -3:00 Uruguay -03/-0230 1971 1754*dafc4501SDan McDonald -3:00 Uruguay -03/-02 1974 1755*dafc4501SDan McDonald -3:00 Uruguay -03/-0230 1974 Dec 22 1756*dafc4501SDan McDonald -3:00 Uruguay -03/-02 17577c478bd9Sstevel@tonic-gate 17587c478bd9Sstevel@tonic-gate# Venezuela 1759538f0434Srobbin# 176056b82ca8SDan McDonald# From Paul Eggert (2015-07-28): 176156b82ca8SDan McDonald# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 176256b82ca8SDan McDonald# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf 176356b82ca8SDan McDonald# 176417d9c33fSrobbin# From John Stainforth (2007-11-28): 176517d9c33fSrobbin# ... the change for Venezuela originally expected for 2007-12-31 has 176617d9c33fSrobbin# been brought forward to 2007-12-09. The official announcement was 17676f8e8937SDan McDonald# published today in the "Gaceta Oficial de la República Bolivariana 17686f8e8937SDan McDonald# de Venezuela, número 38.819" (official document for all laws or 176917d9c33fSrobbin# resolution publication) 177017d9c33fSrobbin# http://www.globovision.com/news.php?nid=72208 1771538f0434Srobbin 1772c2d5ab87SDan McDonald# From Alexander Krivenyshev (2016-04-15): 1773c2d5ab87SDan McDonald# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino 1774c2d5ab87SDan McDonald# 1775c2d5ab87SDan McDonald# From Paul Eggert (2016-04-15): 1776c2d5ab87SDan McDonald# Clocks advance 30 minutes on 2016-05-01 at 02:30.... 1777c2d5ab87SDan McDonald# "'Venezuela's new time-zone: hours without light, hours without water, 1778c2d5ab87SDan McDonald# hours of presidential broadcasts, hours of lines,' quipped comedian 1779c2d5ab87SDan McDonald# Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps 1780c2d5ab87SDan McDonald# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 1781c2d5ab87SDan McDonald# http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE 1782c2d5ab87SDan McDonald# 1783c2d5ab87SDan McDonald# From Matt Johnson (2016-04-20): 1784c2d5ab87SDan McDonald# ... published in the official Gazette [2016-04-18], here: 1785c2d5ab87SDan McDonald# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf 1786c2d5ab87SDan McDonald 17877c478bd9Sstevel@tonic-gate# Zone NAME GMTOFF RULES FORMAT [UNTIL] 17887c478bd9Sstevel@tonic-gateZone America/Caracas -4:27:44 - LMT 1890 17897c478bd9Sstevel@tonic-gate -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 1790*dafc4501SDan McDonald -4:30 - -0430 1965 Jan 1 0:00 1791*dafc4501SDan McDonald -4:00 - -04 2007 Dec 9 3:00 1792*dafc4501SDan McDonald -4:30 - -0430 2016 May 1 2:30 1793*dafc4501SDan McDonald -4:00 - -04 1794