# <pre> | |
# This file is in the public domain, so clarified as of | |
# 2009-05-17 by Arthur David Olson. | |
# This data is by no means authoritative; if you think you know better, | |
# go ahead and edit the file (and please send any changes to | |
# tz@iana.org for general use in the future). | |
# From Paul Eggert (2006-03-22): | |
# A good source for time zone historical data outside the U.S. is | |
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), | |
# San Diego: ACS Publications, Inc. (2003). | |
# | |
# Gwillim Law writes that a good source | |
# for recent time zone data is the International Air Transport | |
# Association's Standard Schedules Information Manual (IATA SSIM), | |
# published semiannually. Law sent in several helpful summaries | |
# of the IATA's data after 1990. | |
# | |
# Except where otherwise noted, Shanks & Pottenger is the source for | |
# entries through 1990, and IATA SSIM is the source for entries afterwards. | |
# | |
# Earlier editions of these tables used the North American style (e.g. ARST and | |
# ARDT for Argentine Standard and Daylight Time), but the following quote | |
# suggests that it's better to use European style (e.g. ART and ARST). | |
# I suggest the use of _Summer time_ instead of the more cumbersome | |
# _daylight-saving time_. _Summer time_ seems to be in general use | |
# in Europe and South America. | |
# -- E O Cutler, _New York Times_ (1937-02-14), quoted in | |
# H L Mencken, _The American Language: Supplement I_ (1960), p 466 | |
# | |
# Earlier editions of these tables also used the North American style | |
# for time zones in Brazil, but this was incorrect, as Brazilians say | |
# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in | |
# the railroad sector, writes (1999-07-06): | |
# The subject of time zones is currently a matter of discussion/debate in | |
# Brazil. Let's say that "the Brasilia time" is considered the | |
# "official time" because Brasilia is the capital city. | |
# The other three time zones are called "Brasilia time "minus one" or | |
# "plus one" or "plus two". As far as I know there is no such | |
# name/designation as "Eastern Time" or "Central Time". | |
# So I invented the following (English-language) abbreviations for now. | |
# Corrections are welcome! | |
# std dst | |
# -2:00 FNT FNST Fernando de Noronha | |
# -3:00 BRT BRST Brasilia | |
# -4:00 AMT AMST Amazon | |
# -5:00 ACT ACST Acre | |
############################################################################### | |
############################################################################### | |
# Argentina | |
# From Bob Devine (1988-01-28): | |
# Argentina: first Sunday in October to first Sunday in April since 1976. | |
# Double Summer time from 1969 to 1974. Switches at midnight. | |
# From U. S. Naval Observatory (1988-01-199): | |
# ARGENTINA 3 H BEHIND UTC | |
# From Hernan G. Otero (1995-06-26): | |
# I am sending modifications to the Argentine time zone table... | |
# AR was chosen because they are the ISO letters that represent Argentina. | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule Arg 1930 only - Dec 1 0:00 1:00 S | |
Rule Arg 1931 only - Apr 1 0:00 0 - | |
Rule Arg 1931 only - Oct 15 0:00 1:00 S | |
Rule Arg 1932 1940 - Mar 1 0:00 0 - | |
Rule Arg 1932 1939 - Nov 1 0:00 1:00 S | |
Rule Arg 1940 only - Jul 1 0:00 1:00 S | |
Rule Arg 1941 only - Jun 15 0:00 0 - | |
Rule Arg 1941 only - Oct 15 0:00 1:00 S | |
Rule Arg 1943 only - Aug 1 0:00 0 - | |
Rule Arg 1943 only - Oct 15 0:00 1:00 S | |
Rule Arg 1946 only - Mar 1 0:00 0 - | |
Rule Arg 1946 only - Oct 1 0:00 1:00 S | |
Rule Arg 1963 only - Oct 1 0:00 0 - | |
Rule Arg 1963 only - Dec 15 0:00 1:00 S | |
Rule Arg 1964 1966 - Mar 1 0:00 0 - | |
Rule Arg 1964 1966 - Oct 15 0:00 1:00 S | |
Rule Arg 1967 only - Apr 2 0:00 0 - | |
Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S | |
Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - | |
Rule Arg 1974 only - Jan 23 0:00 1:00 S | |
Rule Arg 1974 only - May 1 0:00 0 - | |
Rule Arg 1988 only - Dec 1 0:00 1:00 S | |
# | |
# From Hernan G. Otero (1995-06-26): | |
# These corrections were contributed by InterSoft Argentina S.A., | |
# obtaining the data from the: | |
# Talleres de Hidrografia Naval Argentina | |
# (Argentine Naval Hydrography Institute) | |
Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - | |
Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S | |
# | |
# From Hernan G. Otero (1995-06-26): | |
# From this moment on, the law that mandated the daylight saving | |
# time corrections was derogated and no more modifications | |
# to the time zones (for daylight saving) are now made. | |
# | |
# From Rives McDow (2000-01-10): | |
# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, | |
# which did not result in the switch of a time zone, as they stayed 9 hours | |
# from the International Date Line. | |
Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S | |
# From Paul Eggert (2007-12-28): | |
# DST was set to expire on March 5, not March 3, but since it was converted | |
# to standard time on March 3 it's more convenient for us to pretend that | |
# it ended on March 3. | |
Rule Arg 2000 only - Mar 3 0:00 0 - | |
# | |
# From Peter Gradelski via Steffen Thorsen (2000-03-01): | |
# We just checked with our Sao Paulo office and they say the government of | |
# Argentina decided not to become one of the countries that go on or off DST. | |
# So Buenos Aires should be -3 hours from GMT at all times. | |
# | |
# From Fabian L. Arce Jofre (2000-04-04): | |
# The law that claimed DST for Argentina was derogated by President Fernando | |
# de la Rua on March 2, 2000, because it would make people spend more energy | |
# in the winter time, rather than less. The change took effect on March 3. | |
# | |
# From Mariano Absatz (2001-06-06): | |
# one of the major newspapers here in Argentina said that the 1999 | |
# Timezone Law (which never was effectively applied) will (would?) be | |
# in effect.... The article is at | |
# http://ar.clarin.com/diario/2001-06-06/e-01701.htm | |
# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted | |
# 1999-09-17, and published 1999-09-21. The official publication is at: | |
# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF | |
# Regretfully, you have to subscribe (and pay) for the on-line version.... | |
# | |
# (2001-06-12): | |
# the timezone for Argentina will not change next Sunday. | |
# Apparently it will do so on Sunday 24th.... | |
# http://ar.clarin.com/diario/2001-06-12/s-03501.htm | |
# | |
# (2001-06-25): | |
# Last Friday (yes, the last working day before the date of the change), the | |
# Senate annulled the 1999 law that introduced the changes later postponed. | |
# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm | |
# It remains the vote of the Deputies..., but it will be the same.... | |
# This kind of things had always been done this way in Argentina. | |
# We are still -03:00 all year round in all of the country. | |
# | |
# From Steffen Thorsen (2007-12-21): | |
# A user (Leonardo Chaim) reported that Argentina will adopt DST.... | |
# all of the country (all Zone-entries) are affected. News reports like | |
# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate | |
# that Argentina will use DST next year as well, from October to | |
# March, although exact rules are not given. | |
# | |
# From Jesper Norgaard Welen (2007-12-26) | |
# The last hurdle of Argentina DST is over, the proposal was approved in | |
# the lower chamber too (Deputados) with a vote 192 for and 2 against. | |
# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to | |
# the original scanned proposal, where the dates and the zero hours are | |
# clear and unambiguous...This is the article about final approval: | |
# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996"> | |
# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 | |
# </a> | |
# | |
# From Paul Eggert (2007-12-22): | |
# For dates after mid-2008, the following rules are my guesses and | |
# are quite possibly wrong, but are more likely than no DST at all. | |
# From Alexander Krivenyshev (2008-09-05): | |
# As per message from Carlos Alberto Fonseca Arauz (Nicaragua), | |
# Argentina will start DST on Sunday October 19, 2008. | |
# | |
# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html"> | |
# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html | |
# </a> | |
# OR | |
# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)"> | |
# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) | |
# </a> | |
# From Rodrigo Severo (2008-10-06): | |
# Here is some info available at a Gentoo bug related to TZ on Argentina's DST: | |
# ... | |
# ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- | |
# Hi, there is a problem with timezone-data-2008e and maybe with | |
# timezone-data-2008f | |
# Argentinian law [Number] 25.155 is no longer valid. | |
# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm"> | |
# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm | |
# </a> | |
# The new one is law [Number] 26.350 | |
# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm"> | |
# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm | |
# </a> | |
# So there is no summer time in Argentina for now. | |
# From Mariano Absatz (2008-10-20): | |
# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina | |
# From 2008-10-19 until 2009-03-15 | |
# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01"> | |
# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 | |
# </a> | |
# | |
# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009: | |
# Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz | |
# and Tierra del Fuego | |
# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01"> | |
# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 | |
# </a> | |
# | |
# Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying | |
# it will not apply DST either (even when it was not included in Decree 1705/2008) | |
# <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc"> | |
# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc | |
# </a> | |
# From fullinet (2009-10-18): | |
# As announced in | |
# <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356"> | |
# http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 | |
# </a> | |
# (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") | |
# | |
# "Por el momento, el Gobierno Nacional resolvio no modificar la hora | |
# oficial, decision que estaba en estudio para su implementacion el | |
# domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio | |
# que la Argentina hoy, en estas condiciones meteorologicas, no necesita | |
# la modificacion del huso horario, ya que 2009 nos encuentra con | |
# crecimiento en la produccion y distribucion energetica." | |
Rule Arg 2007 only - Dec 30 0:00 1:00 S | |
Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - | |
Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S | |
# From Mariano Absatz (2004-05-21): | |
# Today it was officially published that the Province of Mendoza is changing | |
# its timezone this winter... starting tomorrow night.... | |
# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf | |
# From Paul Eggert (2004-05-24): | |
# It's Law No. 7,210. This change is due to a public power emergency, so for | |
# now we'll assume it's for this year only. | |
# | |
# From Paul Eggert (2006-03-22): | |
# <a href="http://www.spicasc.net/horvera.html"> | |
# Hora de verano para la Republica Argentina (2003-06-08) | |
# </a> says that standard time in Argentina from 1894-10-31 | |
# to 1920-05-01 was -4:16:48.25. Go with this more-precise value | |
# over Shanks & Pottenger. | |
# | |
# From Mariano Absatz (2004-06-05): | |
# These media articles from a major newspaper mostly cover the current state: | |
# http://www.lanacion.com.ar/04/05/27/de_604825.asp | |
# http://www.lanacion.com.ar/04/05/28/de_605203.asp | |
# | |
# The following eight (8) provinces pulled clocks back to UTC-04:00 at | |
# midnight Monday May 31st. (that is, the night between 05/31 and 06/01). | |
# Apparently, all nine provinces would go back to UTC-03:00 at the same | |
# time in October 17th. | |
# | |
# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, | |
# Tierra del Fuego, Tucuman. | |
# | |
# From Mariano Absatz (2004-06-14): | |
# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00 | |
# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's | |
# annoyance with the change is much higher than the power savings obtained.... | |
# | |
# From Gwillim Law (2004-06-14): | |
# http://www.lanacion.com.ar/04/06/10/de_609078.asp ... | |
# "The time change in Tierra del Fuego was a conflicted decision from | |
# the start. The government had decreed that the measure would take | |
# effect on June 1, but a normative error forced the new time to begin | |
# three days earlier, from a Saturday to a Sunday.... | |
# Our understanding was that the change was originally scheduled to take place | |
# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other | |
# provinces). Sunday was May 30, only two days earlier. So the article | |
# contains a contradiction. I would give more credence to the Saturday/Sunday | |
# date than the "three days earlier" phrase, and conclude that Tierra del | |
# Fuego set its clocks back at 2004-05-30 00:00. | |
# | |
# From Steffen Thorsen (2004-10-05): | |
# The previous law 7210 which changed the province of Mendoza's time zone | |
# back in May have been modified slightly in a new law 7277, which set the | |
# new end date to 2004-09-26 (original date was 2004-10-17). | |
# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf | |
# | |
# From Mariano Absatz (2004-10-05): | |
# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between | |
# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 | |
# at midnight between Saturday, July 24th and Sunday, July 25th.... | |
# http://www.sanjuan.gov.ar/prensa/archivo/000329.html | |
# http://www.sanjuan.gov.ar/prensa/archivo/000426.html | |
# http://www.sanjuan.gov.ar/prensa/archivo/000441.html | |
# From Alex Krivenyshev (2008-01-17): | |
# Here are articles that Argentina Province San Luis is planning to end DST | |
# as earlier as upcoming Monday January 21, 2008 or February 2008: | |
# | |
# Provincia argentina retrasa reloj y marca diferencia con resto del pais | |
# (Argentine Province delayed clock and mark difference with the rest of the | |
# country) | |
# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel"> | |
# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel | |
# </a> | |
# | |
# Es inminente que en San Luis atrasen una hora los relojes | |
# (It is imminent in San Luis clocks one hour delay) | |
# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414"> | |
# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414 | |
# </a> | |
# | |
# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html"> | |
# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html | |
# </a> | |
# From Jesper Norgaard Welen (2008-01-18): | |
# The page of the San Luis provincial government | |
# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812"> | |
# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 | |
# </a> | |
# confirms what Alex Krivenyshev has earlier sent to the tz | |
# emailing list about that San Luis plans to return to standard | |
# time much earlier than the rest of the country. It also | |
# confirms that upon request the provinces San Juan and Mendoza | |
# refused to follow San Luis in this change. | |
# | |
# The change is supposed to take place Monday the 21.st at 0:00 | |
# hours. As far as I understand it if this goes ahead, we need | |
# a new timezone for San Luis (although there are also documented | |
# independent changes in the southamerica file of San Luis in | |
# 1990 and 1991 which has not been confirmed). | |
# From Jesper Norgaard Welen (2008-01-25): | |
# Unfortunately the below page has become defunct, about the San Luis | |
# time change. Perhaps because it now is part of a group of pages "Most | |
# important pages of 2008." | |
# | |
# You can use | |
# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834"> | |
# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 | |
# </a> | |
# instead it seems. Or use "Buscador" from the main page of the San Luis | |
# government, and fill in "huso" and click OK, and you will get 3 pages | |
# from which the first one is identical to the above. | |
# From Mariano Absatz (2008-01-28): | |
# I can confirm that the Province of San Luis (and so far only that | |
# province) decided to go back to UTC-3 effective midnight Jan 20th 2008 | |
# (that is, Monday 21st at 0:00 is the time the clocks were delayed back | |
# 1 hour), and they intend to keep UTC-3 as their timezone all year round | |
# (that is, unless they change their mind any minute now). | |
# | |
# So we'll have to add yet another city to 'southamerica' (I think San | |
# Luis city is the mos populated city in the Province, so it'd be | |
# America/Argentina/San_Luis... of course I can't remember if San Luis's | |
# history of particular changes goes along with Mendoza or San Juan :-( | |
# (I only remember not being able to collect hard facts about San Luis | |
# back in 2004, when these provinces changed to UTC-4 for a few days, I | |
# mailed them personally and never got an answer). | |
# From Paul Eggert (2008-06-30): | |
# Unless otherwise specified, data are from Shanks & Pottenger through 1992, | |
# from the IATA otherwise. As noted below, Shanks & Pottenger say that | |
# America/Cordoba split into 6 subregions during 1991/1992, one of which | |
# was America/San_Luis, but we haven't verified this yet so for now we'll | |
# keep America/Cordoba a single region rather than splitting it into the | |
# other 5 subregions. | |
# From Mariano Absatz (2009-03-13): | |
# Yesterday (with our usual 2-day notice) the Province of San Luis | |
# decided that next Sunday instead of "staying" @utc-03:00 they will go | |
# to utc-04:00 until the second Saturday in October... | |
# | |
# The press release is at | |
# <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102"> | |
# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 | |
# </a> | |
# (I couldn't find the decree, but | |
# <a href="http://www.sanluis.gov.ar"> | |
# www.sanluis.gov.ar | |
# <a/> | |
# is the official page for the Province Government). | |
# | |
# There's also a note in only one of the major national papers (La Nación) at | |
# <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912"> | |
# http://www.lanacion.com.ar/nota.asp?nota_id=1107912 | |
# </a> | |
# | |
# The press release says: | |
# (...) anunció que el próximo domingo a las 00:00 los puntanos deberán | |
# atrasar una hora sus relojes. | |
# | |
# A partir de entonces, San Luis establecerá el huso horario propio de | |
# la Provincia. De esta manera, durante el periodo del calendario anual | |
# 2009, el cambio horario quedará comprendido entre las 00:00 del tercer | |
# domingo de marzo y las 24:00 del segundo sábado de octubre. | |
# Quick&dirty translation | |
# (...) announced that next Sunday, at 00:00, Puntanos (the San Luis | |
# inhabitants) will have to turn back one hour their clocks | |
# | |
# Since then, San Luis will establish its own Province timezone. Thus, | |
# during 2009, this timezone change will run from 00:00 the third Sunday | |
# in March until 24:00 of the second Saturday in October. | |
# From Mariano Absatz (2009-10-16): | |
# ...the Province of San Luis is a case in itself. | |
# | |
# The Law at | |
# <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>" | |
# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 | |
# </a> | |
# is ambiguous because establishes a calendar from the 2nd Sunday in | |
# October at 0:00 thru the 2nd Saturday in March at 24:00 and the | |
# complement of that starting on the 2nd Sunday of March at 0:00 and | |
# ending on the 2nd Saturday of March at 24:00. | |
# | |
# This clearly breaks every time the 1st of March or October is a Sunday. | |
# | |
# IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd | |
# Sunday of October and March. | |
# | |
# The problem is that the changes in the rest of the Provinces that did | |
# change in 2007/2008, were made according to the Federal Law and Decrees | |
# that did so on the 3rd Sunday of October and March. | |
# | |
# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday | |
# (October 11th) at 0:00. | |
# | |
# So I guess a new set of rules, besides "Arg", must be made and the last | |
# America/Argentina/San_Luis entries should change to use these... | |
# | |
# I'm enclosing a patch that does what I say... regretfully, the San Luis | |
# timezone must be called "WART/WARST" even when most of the time (like, | |
# right now) WARST == ART... that is, since last Sunday, all the country | |
# is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest | |
# of the country calls it "ART". | |
# ... | |
# From Alexander Krivenyshev (2010-04-09): | |
# According to news reports from El Diario de la Republica Province San | |
# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time | |
# after April 11, 2010--will continue to have same time as rest of | |
# Argentina (UTC-3) (no DST). | |
# | |
# Confirmaron la prórroga del huso horario de verano (Spanish) | |
# <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9"> | |
# http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 | |
# </a> | |
# or (some English translation): | |
# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html"> | |
# http://www.worldtimezone.com/dst_news/dst_news_argentina08.html | |
# </a> | |
# From Mariano Absatz (2010-04-12): | |
# yes...I can confirm this...and given that San Luis keeps calling | |
# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" | |
# rules...San Luis is still using "Western ARgentina Time" and it got | |
# stuck on Summer daylight savings time even though the summer is over. | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
# | |
# Buenos Aires (BA), Capital Federal (CF), | |
Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May # Cordoba Mean Time | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 Arg AR%sT | |
# | |
# Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), | |
# Chaco (CC), Formosa (FM), Santiago del Estero (SE) | |
# | |
# Shanks & Pottenger also make the following claims, which we haven't verified: | |
# - Formosa switched to -3:00 on 1991-01-07. | |
# - Misiones switched to -3:00 on 1990-12-29. | |
# - Chaco switched to -3:00 on 1991-01-04. | |
# - Santiago del Estero switched to -4:00 on 1991-04-01, | |
# then to -3:00 on 1991-04-26. | |
# | |
Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 3 | |
-4:00 - WART 1991 Oct 20 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 Arg AR%sT | |
# | |
# Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) | |
Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 3 | |
-4:00 - WART 1991 Oct 20 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# Tucuman (TM) | |
Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 3 | |
-4:00 - WART 1991 Oct 20 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 Jun 1 | |
-4:00 - WART 2004 Jun 13 | |
-3:00 Arg AR%sT | |
# | |
# La Rioja (LR) | |
Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 1 | |
-4:00 - WART 1991 May 7 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 Jun 1 | |
-4:00 - WART 2004 Jun 20 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# San Juan (SJ) | |
Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 1 | |
-4:00 - WART 1991 May 7 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 May 31 | |
-4:00 - WART 2004 Jul 25 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# Jujuy (JY) | |
Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1990 Mar 4 | |
-4:00 - WART 1990 Oct 28 | |
-4:00 1:00 WARST 1991 Mar 17 | |
-4:00 - WART 1991 Oct 6 | |
-3:00 1:00 ARST 1992 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# Catamarca (CT), Chubut (CH) | |
Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1991 Mar 3 | |
-4:00 - WART 1991 Oct 20 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 Jun 1 | |
-4:00 - WART 2004 Jun 20 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# Mendoza (MZ) | |
Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1990 Mar 4 | |
-4:00 - WART 1990 Oct 15 | |
-4:00 1:00 WARST 1991 Mar 1 | |
-4:00 - WART 1991 Oct 15 | |
-4:00 1:00 WARST 1992 Mar 1 | |
-4:00 - WART 1992 Oct 18 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 May 23 | |
-4:00 - WART 2004 Sep 26 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# San Luis (SL) | |
Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - | |
Rule SanLuis 2007 2009 - Oct Sun>=8 0:00 1:00 S | |
Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1990 | |
-3:00 1:00 ARST 1990 Mar 14 | |
-4:00 - WART 1990 Oct 15 | |
-4:00 1:00 WARST 1991 Mar 1 | |
-4:00 - WART 1991 Jun 1 | |
-3:00 - ART 1999 Oct 3 | |
-4:00 1:00 WARST 2000 Mar 3 | |
-3:00 - ART 2004 May 31 | |
-4:00 - WART 2004 Jul 25 | |
-3:00 Arg AR%sT 2008 Jan 21 | |
-4:00 SanLuis WAR%sT | |
# | |
# Santa Cruz (SC) | |
Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May # Cordoba Mean Time | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 Jun 1 | |
-4:00 - WART 2004 Jun 20 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# | |
# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) | |
Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 | |
-4:16:48 - CMT 1920 May # Cordoba Mean Time | |
-4:00 - ART 1930 Dec | |
-4:00 Arg AR%sT 1969 Oct 5 | |
-3:00 Arg AR%sT 1999 Oct 3 | |
-4:00 Arg AR%sT 2000 Mar 3 | |
-3:00 - ART 2004 May 30 | |
-4:00 - WART 2004 Jun 20 | |
-3:00 Arg AR%sT 2008 Oct 18 | |
-3:00 - ART | |
# Aruba | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad | |
-4:30 - ANT 1965 # Netherlands Antilles Time | |
-4:00 - AST | |
# Bolivia | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/La_Paz -4:32:36 - LMT 1890 | |
-4:32:36 - CMT 1931 Oct 15 # Calamarca MT | |
-4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST | |
-4:00 - BOT # Bolivia Time | |
# Brazil | |
# From Paul Eggert (1993-11-18): | |
# The mayor of Rio recently attempted to change the time zone rules | |
# just in his city, in order to leave more summer time for the tourist trade. | |
# The rule change lasted only part of the day; | |
# the federal government refused to follow the city's rules, and business | |
# was in a chaos, so the mayor backed down that afternoon. | |
# From IATA SSIM (1996-02): | |
# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), | |
# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), | |
# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), | |
# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. | |
# [The last three states are new to this issue of the IATA SSIM.] | |
# From Gwillim Law (1996-10-07): | |
# Geography, history (Tocantins was part of Goias until 1989), and other | |
# sources of time zone information lead me to believe that AL, SE, and TO were | |
# always in BR1, and so the only change was whether or not they observed DST.... | |
# The earliest issue of the SSIM I have is 2/91. Each issue from then until | |
# 9/95 says that DST is observed only in the ten states I quoted from 9/95, | |
# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 | |
# (UTC-4).... The other two time zones given for Brazil are BR3, which is | |
# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is | |
# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's | |
# become part of the state of Pernambuco). The boundary between BR1 and BR2 | |
# has never been clearly stated. They've simply been called East and West. | |
# However, some conclusions can be drawn from another IATA manual: the Airline | |
# Coding Directory, which lists close to 400 airports in Brazil. For each | |
# airport it gives a time zone which is coded to the SSIM. From that | |
# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), | |
# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do | |
# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. | |
# From Marcos Tadeu (1998-09-27): | |
# <a href="http://pcdsh01.on.br/verao1.html"> | |
# Brazilian official page | |
# </a> | |
# From Jesper Norgaard (2000-11-03): | |
# [For an official list of which regions in Brazil use which time zones, see:] | |
# http://pcdsh01.on.br/Fusbr.htm | |
# http://pcdsh01.on.br/Fusbrhv.htm | |
# From Celso Doria via David Madeo (2002-10-09): | |
# The reason for the delay this year has to do with elections in Brazil. | |
# | |
# Unlike in the United States, elections in Brazil are 100% computerized and | |
# the results are known almost immediately. Yesterday, it was the first | |
# round of the elections when 115 million Brazilians voted for President, | |
# Governor, Senators, Federal Deputies, and State Deputies. Nobody is | |
# counting (or re-counting) votes anymore and we know there will be a second | |
# round for the Presidency and also for some Governors. The 2nd round will | |
# take place on October 27th. | |
# | |
# The reason why the DST will only begin November 3rd is that the thousands | |
# of electoral machines used cannot have their time changed, and since the | |
# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, | |
# the Government decided to postpone DST, instead of changing the Constitution | |
# (maybe, for the next elections, it will be possible to change the clock)... | |
# From Rodrigo Severo (2004-10-04): | |
# It's just the biannual change made necessary by the much hyped, supposedly | |
# modern Brazilian eletronic voting machines which, apparently, can't deal | |
# with a time change between the first and the second rounds of the elections. | |
# From Steffen Thorsen (2007-09-20): | |
# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: | |
# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 | |
# From Paul Schulze (2008-06-24): | |
# ...by law number 11.662 of April 24, 2008 (published in the "Diario | |
# Oficial da Uniao"...) in Brazil there are changes in the timezones, | |
# effective today (00:00am at June 24, 2008) as follows: | |
# | |
# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the | |
# part of the Amazonas state that had this timezone now being put to the | |
# timezone UTC+4 | |
# b) The whole Para state now is put at timezone UTC+3, instead of just | |
# part of it, as was before. | |
# | |
# This change follows a proposal of senator Tiao Viana of Acre state, that | |
# proposed it due to concerns about open television channels displaying | |
# programs inappropriate to youths in the states that had the timezone | |
# UTC+5 too early in the night. In the occasion, some more corrections | |
# were proposed, trying to unify the timezones of any given state. This | |
# change modifies timezone rules defined in decree 2.784 of 18 June, | |
# 1913. | |
# From Rodrigo Severo (2008-06-24): | |
# Just correcting the URL: | |
# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008"> | |
# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 | |
# </a> | |
# | |
# As a result of the above Decree I believe the America/Rio_Branco | |
# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall | |
# be created to represent the...west side of the Para State. I | |
# suggest this new timezone be called Santarem as the most | |
# important/populated city in the affected area. | |
# | |
# This new timezone would be the same as the Rio_Branco timezone up to | |
# the 2008/06/24 change which would be to UTC-3 instead of UTC-4. | |
# From Alex Krivenyshev (2008-06-24): | |
# This is a quick reference page for New and Old Brazil Time Zones map. | |
# <a href="http://www.worldtimezone.com/brazil-time-new-old.php"> | |
# http://www.worldtimezone.com/brazil-time-new-old.php | |
# </a> | |
# | |
# - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05 | |
# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western | |
# part of Par state is moving to one timezone UTC- 03 (from UTC -04). | |
# From Paul Eggert (2002-10-10): | |
# The official decrees referenced below are mostly taken from | |
# <a href="http://pcdsh01.on.br/DecHV.html"> | |
# Decretos sobre o Horario de Verao no Brasil | |
# </a>. | |
# From Steffen Thorsen (2008-08-29): | |
# As announced by the government and many newspapers in Brazil late | |
# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and | |
# it will end on 2009-02-15 (current rule for Brazil is fine). Based on | |
# past years experience with the elections, there was a good chance that | |
# the start was postponed to November, but it did not happen this year. | |
# | |
# It has not yet been posted to http://pcdsh01.on.br/DecHV.html | |
# | |
# An official page about it: | |
# <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"> | |
# http://www.mme.gov.br/site/news/detail.do?newsId=16722 | |
# </a> | |
# Note that this link does not always work directly, but must be accessed | |
# by going to | |
# <a href="http://www.mme.gov.br/first"> | |
# http://www.mme.gov.br/first | |
# </a> | |
# | |
# One example link that works directly: | |
# <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54"> | |
# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 | |
# (Portuguese) | |
# </a> | |
# | |
# We have a written a short article about it as well: | |
# <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"> | |
# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html | |
# </a> | |
# | |
# From Alexander Krivenyshev (2011-10-04): | |
# State Bahia will return to Daylight savings time this year after 8 years off. | |
# The announcement was made by Governor Jaques Wagner in an interview to a | |
# television station in Salvador. | |
# In Portuguese: | |
# <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html"> | |
# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html | |
# </a> and | |
# <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html"> | |
# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html | |
# </a> | |
# From Guilherme Bernardes Rodrigues (2011-10-07): | |
# There is news in the media, however there is still no decree about it. | |
# I just send a e-mail to Zulmira Brandão at | |
# <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the | |
# oficial agency about time in Brazil, and she confirmed that the old rule is | |
# still in force. | |
# From Guilherme Bernardes Rodrigues (2011-10-14) | |
# It's official, the President signed a decree that includes Bahia in summer | |
# time. | |
# [ and in a second message (same day): ] | |
# I found the decree. | |
# | |
# DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 | |
# Link : | |
# <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6"> | |
# http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 | |
# </a> | |
# From Kelley Cook (2012-10-16): | |
# The governor of state of Bahia in Brazil announced on Thursday that | |
# due to public pressure, he is reversing the DST policy they implemented | |
# last year and will not be going to Summer Time on October 21st.... | |
# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia | |
# From Rodrigo Severo (2012-10-16): | |
# Tocantins state will have DST. | |
# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) | |
# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10) | |
Rule Brazil 1931 only - Oct 3 11:00 1:00 S | |
Rule Brazil 1932 1933 - Apr 1 0:00 0 - | |
Rule Brazil 1932 only - Oct 3 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10) | |
# revoked DST. | |
# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24) | |
# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13) | |
Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S | |
Rule Brazil 1950 only - Apr 16 1:00 0 - | |
Rule Brazil 1951 1952 - Apr 1 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24) | |
Rule Brazil 1953 only - Mar 1 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30) | |
# revoked DST. | |
# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18) | |
# established DST from 1963-10-23 00:00 to 1964-02-29 00:00 | |
# in SP, RJ, GB, MG, ES, due to the prolongation of the drought. | |
# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03) | |
# extended the above decree to all of the national territory on 12-09. | |
Rule Brazil 1963 only - Dec 9 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25) | |
# extended summer time by one day to 1964-03-01 00:00 (start of school). | |
Rule Brazil 1964 only - Mar 1 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27) | |
Rule Brazil 1965 only - Jan 31 0:00 1:00 S | |
Rule Brazil 1965 only - Mar 31 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22) | |
Rule Brazil 1965 only - Dec 1 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18) | |
Rule Brazil 1966 1968 - Mar 1 0:00 0 - | |
Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15) | |
# revoked DST. | |
# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27) | |
Rule Brazil 1985 only - Nov 2 0:00 1:00 S | |
# Decree 92,310 (1986-01-21) | |
# Decree 92,463 (1986-03-13) | |
Rule Brazil 1986 only - Mar 15 0:00 0 - | |
# Decree 93,316 (1986-10-01) | |
Rule Brazil 1986 only - Oct 25 0:00 1:00 S | |
Rule Brazil 1987 only - Feb 14 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22) | |
Rule Brazil 1987 only - Oct 25 0:00 1:00 S | |
Rule Brazil 1988 only - Feb 7 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12) | |
# except for the states of AC, AM, PA, RR, RO, and AP (then a territory) | |
Rule Brazil 1988 only - Oct 16 0:00 1:00 S | |
Rule Brazil 1989 only - Jan 29 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21) | |
# with the same exceptions | |
Rule Brazil 1989 only - Oct 15 0:00 1:00 S | |
Rule Brazil 1990 only - Feb 11 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17) | |
# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. | |
# Decree 99,629 (1990-10-19) adds BA, MT. | |
Rule Brazil 1990 only - Oct 21 0:00 1:00 S | |
Rule Brazil 1991 only - Feb 17 0:00 0 - | |
# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25) | |
# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. | |
Rule Brazil 1991 only - Oct 20 0:00 1:00 S | |
Rule Brazil 1992 only - Feb 9 0:00 0 - | |
# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16) | |
# adopted by same states. | |
Rule Brazil 1992 only - Oct 25 0:00 1:00 S | |
Rule Brazil 1993 only - Jan 31 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28) | |
# adopted by same states, plus AM. | |
# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22; | |
# web page corrected 2004-01-07) adopted by same states, minus AM. | |
# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) | |
# adopted by same states, plus MT and TO. | |
# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13) | |
# adds AL, SE. | |
Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S | |
Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 1996 only - Feb 11 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04) | |
# adopted by same states, minus AL, SE. | |
Rule Brazil 1996 only - Oct 6 0:00 1:00 S | |
Rule Brazil 1997 only - Feb 16 0:00 0 - | |
# From Daniel C. Sobral (1998-02-12): | |
# In 1997, the DS began on October 6. The stated reason was that | |
# because international television networks ignored Brazil's policy on DS, | |
# they bought the wrong times on satellite for coverage of Pope's visit. | |
# This year, the ending date of DS was postponed to March 1 | |
# to help dealing with the shortages of electric power. | |
# | |
# Decree 2,317 (1997-09-04), adopted by same states. | |
Rule Brazil 1997 only - Oct 6 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a> | |
# (1998-02-10) | |
Rule Brazil 1998 only - Mar 1 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11) | |
# adopted by the same states as before. | |
Rule Brazil 1998 only - Oct 11 0:00 1:00 S | |
Rule Brazil 1999 only - Feb 21 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a> | |
# (1999-08-23) adopted by same states. | |
# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30) | |
# adds SE, AL, PB, PE, RN, CE, PI, MA and RR. | |
Rule Brazil 1999 only - Oct 3 0:00 1:00 S | |
Rule Brazil 2000 only - Feb 27 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06) | |
# adopted by the same states as before. | |
# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13) | |
# repeals DST in PE and RR, effective 2000-10-15 00:00. | |
# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17) | |
# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. | |
# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a> | |
# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. | |
Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S | |
Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - | |
# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. | |
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a> | |
Rule Brazil 2002 only - Nov 3 0:00 1:00 S | |
# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. | |
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a> | |
Rule Brazil 2003 only - Oct 19 0:00 1:00 S | |
# Decree 5,223 (2004-10-01) reestablishes DST in MT. | |
# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a> | |
Rule Brazil 2004 only - Nov 2 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), | |
# adopted by the same states as before. | |
Rule Brazil 2005 only - Oct 16 0:00 1:00 S | |
# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03), | |
# adopted by the same states as before. | |
Rule Brazil 2006 only - Nov 5 0:00 1:00 S | |
Rule Brazil 2007 only - Feb 25 0:00 0 - | |
# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), | |
# adopted by the same states as before. | |
Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S | |
# From Frederico A. C. Neves (2008-09-10): | |
# Acording to this decree | |
# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"> | |
# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm | |
# </a> | |
# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the | |
# 3rd Feb Sunday. There is an exception on the return date when this is | |
# the Carnival Sunday then the return date will be the next Sunday... | |
Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S | |
Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - | |
Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - | |
Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - | |
Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - | |
Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - | |
Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - | |
Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - | |
# From Arthur David Olson (2008-09-29): | |
# The next is wrong in some years but is better than nothing. | |
Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - | |
# The latest ruleset listed above says that the following states observe DST: | |
# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
# | |
# Fernando de Noronha (administratively part of PE) | |
Zone America/Noronha -2:09:40 - LMT 1914 | |
-2:00 Brazil FN%sT 1990 Sep 17 | |
-2:00 - FNT 1999 Sep 30 | |
-2:00 Brazil FN%sT 2000 Oct 15 | |
-2:00 - FNT 2001 Sep 13 | |
-2:00 Brazil FN%sT 2002 Oct 1 | |
-2:00 - FNT | |
# Other Atlantic islands have no permanent settlement. | |
# These include Trindade and Martin Vaz (administratively part of ES), | |
# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE). | |
# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; | |
# it also included the Penedos. | |
# | |
# Amapa (AP), east Para (PA) | |
# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu. | |
# The division between east and west Para is the river Xingu. | |
# In the north a very small part from the river Javary (now Jari I guess, | |
# the border with Amapa) to the Amazon, then to the Xingu. | |
Zone America/Belem -3:13:56 - LMT 1914 | |
-3:00 Brazil BR%sT 1988 Sep 12 | |
-3:00 - BRT | |
# | |
# west Para (PA) | |
# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. | |
Zone America/Santarem -3:38:48 - LMT 1914 | |
-4:00 Brazil AM%sT 1988 Sep 12 | |
-4:00 - AMT 2008 Jun 24 00:00 | |
-3:00 - BRT | |
# | |
# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), | |
# Paraiba (PB) | |
Zone America/Fortaleza -2:34:00 - LMT 1914 | |
-3:00 Brazil BR%sT 1990 Sep 17 | |
-3:00 - BRT 1999 Sep 30 | |
-3:00 Brazil BR%sT 2000 Oct 22 | |
-3:00 - BRT 2001 Sep 13 | |
-3:00 Brazil BR%sT 2002 Oct 1 | |
-3:00 - BRT | |
# | |
# Pernambuco (PE) (except Atlantic islands) | |
Zone America/Recife -2:19:36 - LMT 1914 | |
-3:00 Brazil BR%sT 1990 Sep 17 | |
-3:00 - BRT 1999 Sep 30 | |
-3:00 Brazil BR%sT 2000 Oct 15 | |
-3:00 - BRT 2001 Sep 13 | |
-3:00 Brazil BR%sT 2002 Oct 1 | |
-3:00 - BRT | |
# | |
# Tocantins (TO) | |
Zone America/Araguaina -3:12:48 - LMT 1914 | |
-3:00 Brazil BR%sT 1990 Sep 17 | |
-3:00 - BRT 1995 Sep 14 | |
-3:00 Brazil BR%sT 2003 Sep 24 | |
-3:00 - BRT 2012 Oct 21 | |
-3:00 Brazil BR%sT | |
# | |
# Alagoas (AL), Sergipe (SE) | |
Zone America/Maceio -2:22:52 - LMT 1914 | |
-3:00 Brazil BR%sT 1990 Sep 17 | |
-3:00 - BRT 1995 Oct 13 | |
-3:00 Brazil BR%sT 1996 Sep 4 | |
-3:00 - BRT 1999 Sep 30 | |
-3:00 Brazil BR%sT 2000 Oct 22 | |
-3:00 - BRT 2001 Sep 13 | |
-3:00 Brazil BR%sT 2002 Oct 1 | |
-3:00 - BRT | |
# | |
# Bahia (BA) | |
# There are too many Salvadors elsewhere, so use America/Bahia instead | |
# of America/Salvador. | |
Zone America/Bahia -2:34:04 - LMT 1914 | |
-3:00 Brazil BR%sT 2003 Sep 24 | |
-3:00 - BRT 2011 Oct 16 | |
-3:00 Brazil BR%sT 2012 Oct 21 | |
-3:00 - BRT | |
# | |
# Goias (GO), Distrito Federal (DF), Minas Gerais (MG), | |
# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), | |
# Santa Catarina (SC), Rio Grande do Sul (RS) | |
Zone America/Sao_Paulo -3:06:28 - LMT 1914 | |
-3:00 Brazil BR%sT 1963 Oct 23 00:00 | |
-3:00 1:00 BRST 1964 | |
-3:00 Brazil BR%sT | |
# | |
# Mato Grosso do Sul (MS) | |
Zone America/Campo_Grande -3:38:28 - LMT 1914 | |
-4:00 Brazil AM%sT | |
# | |
# Mato Grosso (MT) | |
Zone America/Cuiaba -3:44:20 - LMT 1914 | |
-4:00 Brazil AM%sT 2003 Sep 24 | |
-4:00 - AMT 2004 Oct 1 | |
-4:00 Brazil AM%sT | |
# | |
# Rondonia (RO) | |
Zone America/Porto_Velho -4:15:36 - LMT 1914 | |
-4:00 Brazil AM%sT 1988 Sep 12 | |
-4:00 - AMT | |
# | |
# Roraima (RR) | |
Zone America/Boa_Vista -4:02:40 - LMT 1914 | |
-4:00 Brazil AM%sT 1988 Sep 12 | |
-4:00 - AMT 1999 Sep 30 | |
-4:00 Brazil AM%sT 2000 Oct 15 | |
-4:00 - AMT | |
# | |
# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto | |
# The great circle line from Tabatinga to Porto Acre divides | |
# east from west Amazonas. | |
Zone America/Manaus -4:00:04 - LMT 1914 | |
-4:00 Brazil AM%sT 1988 Sep 12 | |
-4:00 - AMT 1993 Sep 28 | |
-4:00 Brazil AM%sT 1994 Sep 22 | |
-4:00 - AMT | |
# | |
# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, | |
# Eirunepe, Envira, Ipixuna | |
Zone America/Eirunepe -4:39:28 - LMT 1914 | |
-5:00 Brazil AC%sT 1988 Sep 12 | |
-5:00 - ACT 1993 Sep 28 | |
-5:00 Brazil AC%sT 1994 Sep 22 | |
-5:00 - ACT 2008 Jun 24 00:00 | |
-4:00 - AMT | |
# | |
# Acre (AC) | |
Zone America/Rio_Branco -4:31:12 - LMT 1914 | |
-5:00 Brazil AC%sT 1988 Sep 12 | |
-5:00 - ACT 2008 Jun 24 00:00 | |
-4:00 - AMT | |
# Chile | |
# From Eduardo Krell (1995-10-19): | |
# The law says to switch to DST at midnight [24:00] on the second SATURDAY | |
# of October.... The law is the same for March and October. | |
# (1998-09-29): | |
# Because of the drought this year, the government decided to go into | |
# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... | |
# (unless there's another dry season next year, I guess). | |
# From Julio I. Pacheco Troncoso (1999-03-18): | |
# Because of the same drought, the government decided to end DST later, | |
# on April 3, (one-time change). | |
# From Oscar van Vlijmen (2006-10-08): | |
# http://www.horaoficial.cl/cambio.htm | |
# From Jesper Norgaard Welen (2006-10-08): | |
# I think that there are some obvious mistakes in the suggested link | |
# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 | |
# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 | |
# (they should have been 1990-09-15 and 1990-09-16 respectively), but | |
# anyhow it clears up some doubts too. | |
# From Paul Eggert (2006-12-27): | |
# The following data for Chile and America/Santiago are from | |
# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by | |
# Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks | |
# & Pottenger, except with DST transitions after 1932 cloned from | |
# America/Santiago. The pre-1980 Pacific/Easter data are dubious, | |
# but we have no other source. | |
# From German Poo-Caaman~o (2008-03-03): | |
# Due to drought, Chile extends Daylight Time in three weeks. This | |
# is one-time change (Saturday 3/29 at 24:00 for America/Santiago | |
# and Saturday 3/29 at 22:00 for Pacific/Easter) | |
# The Supreme Decree is located at | |
# <a href="http://www.shoa.cl/servicios/supremo316.pdf"> | |
# http://www.shoa.cl/servicios/supremo316.pdf | |
# </a> | |
# and the instructions for 2008 are located in: | |
# <a href="http://www.horaoficial.cl/cambio.htm"> | |
# http://www.horaoficial.cl/cambio.htm | |
# </a>. | |
# From Jose Miguel Garrido (2008-03-05): | |
# ... | |
# You could see the announces of the change on | |
# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"> | |
# http://www.shoa.cl/noticias/2008/04hora/hora.htm | |
# </a>. | |
# From Angel Chiang (2010-03-04): | |
# Subject: DST in Chile exceptionally extended to 3 April due to earthquake | |
# <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098"> | |
# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 | |
# </a> | |
# (in Spanish, last paragraph). | |
# | |
# This is breaking news. There should be more information available later. | |
# From Arthur Daivd Olson (2010-03-06): | |
# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. | |
# From Glenn Eychaner (2011-03-02): [geychaner@mac.com] | |
# It appears that the Chilean government has decided to postpone the | |
# change from summer time to winter time again, by three weeks to April | |
# 2nd: | |
# <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651"> | |
# http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 | |
# </a> | |
# | |
# This is not yet reflected in the offical "cambio de hora" site, but | |
# probably will be soon: | |
# <a href="http://www.horaoficial.cl/cambio.htm"> | |
# http://www.horaoficial.cl/cambio.htm | |
# </a> | |
# From Arthur David Olson (2011-03-02): | |
# The emol.com article mentions a water shortage as the cause of the | |
# postponement, which may mean that it's not a permanent change. | |
# From Glenn Eychaner (2011-03-28): | |
# The article: | |
# <a href="http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}"> | |
# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} | |
# </a> | |
# | |
# In English: | |
# Chile's clocks will go back an hour this year on the 7th of May instead | |
# of this Saturday. They will go forward again the 3rd Saturday in | |
# August, not in October as they have since 1968. This is a pilot plan | |
# which will be reevaluated in 2012. | |
# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): | |
# As stated in the website of the Chilean Energy Ministry | |
# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html | |
# The Chilean Government has decided to postpone the entrance into winter time | |
# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not | |
# been yet formalized but it will within the next days. | |
# Quote from the website communication: | |
# | |
# 6. For the year 2012, the dates of entry into winter time will be as follows: | |
# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at | |
# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 | |
# of the same day. | |
# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, | |
# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be | |
# 01:00 on September 2. | |
# | |
# Note that...this is yet another "temporary" change that will be reevaluated | |
# AGAIN in 2013. | |
# NOTE: ChileAQ rules for Antarctic bases are stored separately in the | |
# 'antarctica' file. | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule Chile 1927 1932 - Sep 1 0:00 1:00 S | |
Rule Chile 1928 1932 - Apr 1 0:00 0 - | |
Rule Chile 1942 only - Jun 1 4:00u 0 - | |
Rule Chile 1942 only - Aug 1 5:00u 1:00 S | |
Rule Chile 1946 only - Jul 15 4:00u 1:00 S | |
Rule Chile 1946 only - Sep 1 3:00u 0:00 - | |
Rule Chile 1947 only - Apr 1 4:00u 0 - | |
Rule Chile 1968 only - Nov 3 4:00u 1:00 S | |
Rule Chile 1969 only - Mar 30 3:00u 0 - | |
Rule Chile 1969 only - Nov 23 4:00u 1:00 S | |
Rule Chile 1970 only - Mar 29 3:00u 0 - | |
Rule Chile 1971 only - Mar 14 3:00u 0 - | |
Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S | |
Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - | |
Rule Chile 1973 only - Sep 30 4:00u 1:00 S | |
Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S | |
Rule Chile 1987 only - Apr 12 3:00u 0 - | |
Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - | |
Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S | |
Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S | |
Rule Chile 1990 only - Mar 18 3:00u 0 - | |
Rule Chile 1990 only - Sep 16 4:00u 1:00 S | |
Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - | |
Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S | |
Rule Chile 1997 only - Mar 30 3:00u 0 - | |
Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - | |
Rule Chile 1998 only - Sep 27 4:00u 1:00 S | |
Rule Chile 1999 only - Apr 4 3:00u 0 - | |
Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S | |
Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - | |
# N.B.: the end of March 29 in Chile is March 30 in Universal time, | |
# which is used below in specifying the transition. | |
Rule Chile 2008 only - Mar 30 3:00u 0 - | |
Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - | |
Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - | |
Rule Chile 2011 only - May Sun>=2 3:00u 0 - | |
Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S | |
Rule Chile 2012 only - Apr Sun>=23 3:00u 0 - | |
Rule Chile 2012 only - Sep Sun>=2 4:00u 1:00 S | |
Rule Chile 2013 max - Mar Sun>=9 3:00u 0 - | |
Rule Chile 2013 max - Oct Sun>=9 4:00u 1:00 S | |
# IATA SSIM anomalies: (1992-02) says 1992-03-14; | |
# (1996-09) says 1998-03-08. Ignore these. | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Santiago -4:42:46 - LMT 1890 | |
-4:42:46 - SMT 1910 # Santiago Mean Time | |
-5:00 - CLT 1916 Jul 1 # Chile Time | |
-4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time | |
-4:00 - CLT 1919 Jul 1 # Chile Time | |
-4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time | |
-5:00 Chile CL%sT 1947 May 22 # Chile Time | |
-4:00 Chile CL%sT | |
Zone Pacific/Easter -7:17:44 - LMT 1890 | |
-7:17:28 - EMT 1932 Sep # Easter Mean Time | |
-7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time | |
-6:00 Chile EAS%sT | |
# | |
# Sala y Gomez Island is like Pacific/Easter. | |
# Other Chilean locations, including Juan Fernandez Is, San Ambrosio, | |
# San Felix, and Antarctic bases, are like America/Santiago. | |
# Colombia | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule CO 1992 only - May 3 0:00 1:00 S | |
Rule CO 1993 only - Apr 4 0:00 0 - | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 | |
-4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time | |
-5:00 CO CO%sT # Colombia Time | |
# Malpelo, Providencia, San Andres | |
# no information; probably like America/Bogota | |
# Curacao | |
# | |
# From Paul Eggert (2006-03-22): | |
# Shanks & Pottenger say that The Bottom and Philipsburg have been at | |
# -4:00 since standard time was introduced on 1912-03-02; and that | |
# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from | |
# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say | |
# Saba Island has been like Curacao. | |
# This all predates our 1970 cutoff, though. | |
# | |
# By July 2007 Curacao and St Maarten are planned to become | |
# associated states within the Netherlands, much like Aruba; | |
# Bonaire, Saba and St Eustatius would become directly part of the | |
# Netherlands as Kingdom Islands. This won't affect their time zones | |
# though, as far as we know. | |
# | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad | |
-4:30 - ANT 1965 # Netherlands Antilles Time | |
-4:00 - AST | |
# From Arthur David Olson (2011-06-15): | |
# At least for now, use links for places with new iso3166 codes. | |
# The name "Lower Prince's Quarter" is both longer than fourteen charaters | |
# and contains an apostrophe; use "Lower_Princes" below. | |
Link America/Curacao America/Lower_Princes # Sint Maarten | |
Link America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba | |
# Ecuador | |
# | |
# From Paul Eggert (2007-03-04): | |
# Apparently Ecuador had a failed experiment with DST in 1992. | |
# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and | |
# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both | |
# talk about "hora Sixto". Leave this alone for now, as we have no data. | |
# | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Guayaquil -5:19:20 - LMT 1890 | |
-5:14:00 - QMT 1931 # Quito Mean Time | |
-5:00 - ECT # Ecuador Time | |
Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno | |
-5:00 - ECT 1986 | |
-6:00 - GALT # Galapagos Time | |
# Falklands | |
# From Paul Eggert (2006-03-22): | |
# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except | |
# the IATA gives 1996-09-08. Go with Shanks & Pottenger. | |
# From Falkland Islands Government Office, London (2001-01-22) | |
# via Jesper Norgaard: | |
# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 | |
# April 2001 and advance one hour to summer time at 2 am on Sunday 2 | |
# September. It is anticipated that the clocks will revert back at 2 | |
# am on Sunday 21 April 2002 and advance to summer time at 2 am on | |
# Sunday 1 September. | |
# From Rives McDow (2001-02-13): | |
# | |
# I have communicated several times with people there, and the last | |
# time I had communications that was helpful was in 1998. Here is | |
# what was said then: | |
# | |
# "The general rule was that Stanley used daylight saving and the Camp | |
# did not. However for various reasons many people in the Camp have | |
# started to use daylight saving (known locally as 'Stanley Time') | |
# There is no rule as to who uses daylight saving - it is a matter of | |
# personal choice and so it is impossible to draw a map showing who | |
# uses it and who does not. Any list would be out of date as soon as | |
# it was produced. This year daylight saving ended on April 18/19th | |
# and started again on September 12/13th. I do not know what the rule | |
# is, but can find out if you like. We do not change at the same time | |
# as UK or Chile." | |
# | |
# I did have in my notes that the rule was "Second Saturday in Sep at | |
# 0:00 until third Saturday in Apr at 0:00". I think that this does | |
# not agree in some cases with Shanks; is this true? | |
# | |
# Also, there is no mention in the list that some areas in the | |
# Falklands do not use DST. I have found in my communications there | |
# that these areas are on the western half of East Falkland and all of | |
# West Falkland. Stanley is the only place that consistently observes | |
# DST. Again, as in other places in the world, the farmers don't like | |
# it. West Falkland is almost entirely sheep farmers. | |
# | |
# I know one lady there that keeps a list of which farm keeps DST and | |
# which doesn't each year. She runs a shop in Stanley, and says that | |
# the list changes each year. She uses it to communicate to her | |
# customers, catching them when they are home for lunch or dinner. | |
# From Paul Eggert (2001-03-05): | |
# For now, we'll just record the time in Stanley, since we have no | |
# better info. | |
# From Steffen Thorsen (2011-04-01): | |
# The Falkland Islands will not turn back clocks this winter, but stay on | |
# daylight saving time. | |
# | |
# One source: | |
# <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3"> | |
# http://www.falklandnews.com/public/story.cfm?get=5914&source=3 | |
# </a> | |
# | |
# We have gotten this confirmed by a clerk of the legislative assembly: | |
# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the | |
# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 | |
# hours) on the first Sunday of September at 0200hrs. | |
# | |
# IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands | |
# will not revert to local mean time, but clocks will remain on Summer | |
# time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term | |
# change to local time following the trial period will be notified. | |
# | |
# From Andrew Newman (2012-02-24) | |
# A letter from Justin McPhee, Chief Executive, | |
# Cable & Wireless Falkland Islands (dated 2012-02-22) | |
# states... | |
# The current Atlantic/Stanley entry under South America expects the | |
# clocks to go back to standard Falklands Time (FKT) on the 15th April. | |
# The database entry states that in 2011 Stanley was staying on fixed | |
# summer time on a trial basis only. FIG need to contact IANA and/or | |
# the maintainers of the database to inform them we're adopting | |
# the same policy this year and suggest recommendations for future years. | |
# | |
# For now we will assume permanent summer time for the Falklands | |
# until advised differently (to apply for 2012 and beyond, after the 2011 | |
# experiment was apparently successful.) | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S | |
Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - | |
Rule Falk 1939 only - Oct 1 0:00 1:00 S | |
Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S | |
Rule Falk 1943 only - Jan 1 0:00 0 - | |
Rule Falk 1983 only - Sep lastSun 0:00 1:00 S | |
Rule Falk 1984 1985 - Apr lastSun 0:00 0 - | |
Rule Falk 1984 only - Sep 16 0:00 1:00 S | |
Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S | |
Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - | |
Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - | |
Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone Atlantic/Stanley -3:51:24 - LMT 1890 | |
-3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time | |
-4:00 Falk FK%sT 1983 May # Falkland Is Time | |
-3:00 Falk FK%sT 1985 Sep 15 | |
-4:00 Falk FK%sT 2010 Sep 5 02:00 | |
-3:00 - FKST | |
# French Guiana | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Cayenne -3:29:20 - LMT 1911 Jul | |
-4:00 - GFT 1967 Oct # French Guiana Time | |
-3:00 - GFT | |
# Guyana | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown | |
-3:45 - GBGT 1966 May 26 # Br Guiana Time | |
-3:45 - GYT 1975 Jul 31 # Guyana Time | |
-3:00 - GYT 1991 | |
# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. | |
-4:00 - GYT | |
# Paraguay | |
# From Paul Eggert (2006-03-22): | |
# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, | |
# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999 | |
# editions of Shanks, and with the IATA, who say transitions occur at 00:00. | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule Para 1975 1988 - Oct 1 0:00 1:00 S | |
Rule Para 1975 1978 - Mar 1 0:00 0 - | |
Rule Para 1979 1991 - Apr 1 0:00 0 - | |
Rule Para 1989 only - Oct 22 0:00 1:00 S | |
Rule Para 1990 only - Oct 1 0:00 1:00 S | |
Rule Para 1991 only - Oct 6 0:00 1:00 S | |
Rule Para 1992 only - Mar 1 0:00 0 - | |
Rule Para 1992 only - Oct 5 0:00 1:00 S | |
Rule Para 1993 only - Mar 31 0:00 0 - | |
Rule Para 1993 1995 - Oct 1 0:00 1:00 S | |
Rule Para 1994 1995 - Feb lastSun 0:00 0 - | |
Rule Para 1996 only - Mar 1 0:00 0 - | |
# IATA SSIM (2000-02) says 1999-10-10; ignore this for now. | |
# From Steffen Thorsen (2000-10-02): | |
# I have three independent reports that Paraguay changed to DST this Sunday | |
# (10-01). | |
# | |
# Translated by Gwillim Law (2001-02-27) from | |
# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm"> | |
# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01) | |
# </a>: | |
# Starting at 0:00 today, the clock will be set forward 60 minutes, in | |
# fulfillment of Decree No. 7,273 of the Executive Power.... The time change | |
# system has been operating for several years. Formerly there was a separate | |
# decree each year; the new law has the same effect, but permanently. Every | |
# year, the time will change on the first Sunday of October; likewise, the | |
# clock will be set back on the first Sunday of March. | |
# | |
Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S | |
# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. | |
Rule Para 1997 only - Feb lastSun 0:00 0 - | |
# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but | |
# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). | |
Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - | |
# From Rives McDow (2002-02-28): | |
# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the | |
# dst method to be from the first Sunday in September to the first Sunday in | |
# April. | |
Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - | |
Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S | |
# | |
# From Jesper Norgaard Welen (2005-01-02): | |
# There are several sources that claim that Paraguay made | |
# a timezone rule change in autumn 2004. | |
# From Steffen Thorsen (2005-01-05): | |
# Decree 1,867 (2004-03-05) | |
# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13) | |
# <http://www.presidencia.gov.py/decretos/D1867.pdf> | |
Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S | |
Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - | |
# From Carlos Raul Perasso (2010-02-18): | |
# By decree number 3958 issued yesterday ( | |
# <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf"> | |
# http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf | |
# </a> | |
# ) | |
# Paraguay changes its DST schedule, postponing the March rule to April and | |
# modifying the October date. The decree reads: | |
# ... | |
# Art. 1. It is hereby established that from the second Sunday of the month of | |
# April of this year (2010), the official time is to be set back 60 minutes, | |
# and that on the first Sunday of the month of October, it is to be set | |
# forward 60 minutes, in all the territory of the Paraguayan Republic. | |
# ... | |
Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S | |
Rule Para 2010 max - Apr Sun>=8 0:00 0 - | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Asuncion -3:50:40 - LMT 1890 | |
-3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time | |
-4:00 - PYT 1972 Oct # Paraguay Time | |
-3:00 - PYT 1974 Apr | |
-4:00 Para PY%sT | |
# Peru | |
# | |
# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> | |
# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> | |
# When we were in Peru in 1985-1986, they apparently switched over | |
# sometime between December 29 and January 3 while we were on the Amazon. | |
# | |
# From Paul Eggert (2006-03-22): | |
# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
Rule Peru 1938 only - Jan 1 0:00 1:00 S | |
Rule Peru 1938 only - Apr 1 0:00 0 - | |
Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S | |
Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - | |
Rule Peru 1986 1987 - Jan 1 0:00 1:00 S | |
Rule Peru 1986 1987 - Apr 1 0:00 0 - | |
Rule Peru 1990 only - Jan 1 0:00 1:00 S | |
Rule Peru 1990 only - Apr 1 0:00 0 - | |
# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. | |
Rule Peru 1994 only - Jan 1 0:00 1:00 S | |
Rule Peru 1994 only - Apr 1 0:00 0 - | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Lima -5:08:12 - LMT 1890 | |
-5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? | |
-5:00 Peru PE%sT # Peru Time | |
# South Georgia | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken | |
-2:00 - GST # South Georgia Time | |
# South Sandwich Is | |
# uninhabited; scientific personnel have wintered | |
# Suriname | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Paramaribo -3:40:40 - LMT 1911 | |
-3:40:52 - PMT 1935 # Paramaribo Mean Time | |
-3:40:36 - PMT 1945 Oct # The capital moved? | |
-3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time | |
-3:30 - SRT 1984 Oct # Suriname Time | |
-3:00 - SRT | |
# Trinidad and Tobago | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 | |
-4:00 - AST | |
# Uruguay | |
# From Paul Eggert (1993-11-18): | |
# Uruguay wins the prize for the strangest peacetime manipulation of the rules. | |
# From Shanks & Pottenger: | |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S | |
# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. | |
Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS | |
Rule Uruguay 1924 1926 - Apr 1 0:00 0 - | |
Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS | |
Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS | |
# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. | |
Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - | |
Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS | |
Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - | |
# Whitman gives 1937 Oct 3; go with Shanks & Pottenger. | |
Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS | |
# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, | |
# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger. | |
Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS | |
Rule Uruguay 1942 only - Jan 1 0:00 0 - | |
Rule Uruguay 1942 only - Dec 14 0:00 1:00 S | |
Rule Uruguay 1943 only - Mar 14 0:00 0 - | |
Rule Uruguay 1959 only - May 24 0:00 1:00 S | |
Rule Uruguay 1959 only - Nov 15 0:00 0 - | |
Rule Uruguay 1960 only - Jan 17 0:00 1:00 S | |
Rule Uruguay 1960 only - Mar 6 0:00 0 - | |
Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S | |
Rule Uruguay 1965 only - Sep 26 0:00 0 - | |
Rule Uruguay 1966 1967 - Oct 31 0:00 0 - | |
Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS | |
Rule Uruguay 1968 1970 - Dec 2 0:00 0 - | |
Rule Uruguay 1972 only - Apr 24 0:00 1:00 S | |
Rule Uruguay 1972 only - Aug 15 0:00 0 - | |
Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS | |
Rule Uruguay 1974 only - Dec 22 0:00 1:00 S | |
Rule Uruguay 1976 only - Oct 1 0:00 0 - | |
Rule Uruguay 1977 only - Dec 4 0:00 1:00 S | |
Rule Uruguay 1978 only - Apr 1 0:00 0 - | |
Rule Uruguay 1979 only - Oct 1 0:00 1:00 S | |
Rule Uruguay 1980 only - May 1 0:00 0 - | |
Rule Uruguay 1987 only - Dec 14 0:00 1:00 S | |
Rule Uruguay 1988 only - Mar 14 0:00 0 - | |
Rule Uruguay 1988 only - Dec 11 0:00 1:00 S | |
Rule Uruguay 1989 only - Mar 12 0:00 0 - | |
Rule Uruguay 1989 only - Oct 29 0:00 1:00 S | |
# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, | |
# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. | |
Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - | |
Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S | |
Rule Uruguay 1992 only - Oct 18 0:00 1:00 S | |
Rule Uruguay 1993 only - Feb 28 0:00 0 - | |
# From Eduardo Cota (2004-09-20): | |
# The uruguayan government has decreed a change in the local time.... | |
# http://www.presidencia.gub.uy/decretos/2004091502.htm | |
Rule Uruguay 2004 only - Sep 19 0:00 1:00 S | |
# From Steffen Thorsen (2005-03-11): | |
# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to | |
# save energy ... it was postponed two weeks.... | |
# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm | |
Rule Uruguay 2005 only - Mar 27 2:00 0 - | |
# From Eduardo Cota (2005-09-27): | |
# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF | |
# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at | |
# 02:00 local time, official time in Uruguay will be at GMT -2. | |
Rule Uruguay 2005 only - Oct 9 2:00 1:00 S | |
Rule Uruguay 2006 only - Mar 12 2:00 0 - | |
# From Jesper Norgaard Welen (2006-09-06): | |
# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF | |
Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S | |
Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 | |
-3:44:44 - MMT 1920 May 1 # Montevideo MT | |
-3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time | |
-3:00 Uruguay UY%sT | |
# Venezuela | |
# | |
# From John Stainforth (2007-11-28): | |
# ... the change for Venezuela originally expected for 2007-12-31 has | |
# been brought forward to 2007-12-09. The official announcement was | |
# published today in the "Gaceta Oficial de la Republica Bolivariana | |
# de Venezuela, numero 38.819" (official document for all laws or | |
# resolution publication) | |
# http://www.globovision.com/news.php?nid=72208 | |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] | |
Zone America/Caracas -4:27:44 - LMT 1890 | |
-4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? | |
-4:30 - VET 1965 # Venezuela Time | |
-4:00 - VET 2007 Dec 9 03:00 | |
-4:30 - VET |