southamerica revision 3254abe6687573cbfc2e800570445b01fe3b5949
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# @(#)southamerica 8.40
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# This file is in the public domain, so clarified as of
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# 2009-05-17 by Arthur David Olson.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# This data is by no means authoritative; if you think you know better,
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# go ahead and edit the file (and please send any changes to
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# tz@elsie.nci.nih.gov for general use in the future).
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Paul Eggert (2006-03-22):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# A good source for time zone historical data outside the U.S. is
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# San Diego: ACS Publications, Inc. (2003).
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# Gwillim Law writes that a good source
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# for recent time zone data is the International Air Transport
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# Association's Standard Schedules Information Manual (IATA SSIM),
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# published semiannually. Law sent in several helpful summaries
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# of the IATA's data after 1990.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Except where otherwise noted, Shanks & Pottenger is the source for
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# entries through 1990, and IATA SSIM is the source for entries afterwards.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Earlier editions of these tables used the North American style (e.g. ARST and
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# ARDT for Argentine Standard and Daylight Time), but the following quote
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# suggests that it's better to use European style (e.g. ART and ARST).
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# I suggest the use of _Summer time_ instead of the more cumbersome
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# _daylight-saving time_. _Summer time_ seems to be in general use
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# in Europe and South America.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# H L Mencken, _The American Language: Supplement I_ (1960), p 466
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Earlier editions of these tables also used the North American style
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# for time zones in Brazil, but this was incorrect, as Brazilians say
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# the railroad sector, writes (1999-07-06):
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# The subject of time zones is currently a matter of discussion/debate in
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Brazil. Let's say that "the Brasilia time" is considered the
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# "official time" because Brasilia is the capital city.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# The other three time zones are called "Brasilia time "minus one" or
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# "plus one" or "plus two". As far as I know there is no such
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# name/designation as "Eastern Time" or "Central Time".
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# So I invented the following (English-language) abbreviations for now.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Corrections are welcome!
9f9e2589e05828b9e34c83fa5687d497da2199aeDominik Luecke# -2:00 FNT FNST Fernando de Noronha
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# -3:00 BRT BRST Brasilia
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# -4:00 AMT AMST Amazon
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# -5:00 ACT ACST Acre
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke###############################################################################
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke###############################################################################
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From Bob Devine (1988-01-28):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# Argentina: first Sunday in October to first Sunday in April since 1976.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# Double Summer time from 1969 to 1974. Switches at midnight.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From U. S. Naval Observatory (1988-01-199):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# ARGENTINA 3 H BEHIND UTC
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From Hernan G. Otero (1995-06-26):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# I am sending modifications to the Argentine time zone table...
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# AR was chosen because they are the ISO letters that represent Argentina.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1930 only - Dec 1 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1931 only - Apr 1 0:00 0 -
5406d70d63c7c843823cda85d3a3304c432e9f2aDominik LueckeRule Arg 1931 only - Oct 15 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1932 1940 - Mar 1 0:00 0 -
61e38a4f194d3adc66646326c938eb9263a2f39bChristian MaederRule Arg 1932 1939 - Nov 1 0:00 1:00 S
5406d70d63c7c843823cda85d3a3304c432e9f2aDominik LueckeRule Arg 1940 only - Jul 1 0:00 1:00 S
5406d70d63c7c843823cda85d3a3304c432e9f2aDominik LueckeRule Arg 1941 only - Jun 15 0:00 0 -
5406d70d63c7c843823cda85d3a3304c432e9f2aDominik LueckeRule Arg 1941 only - Oct 15 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1943 only - Aug 1 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1943 only - Oct 15 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1946 only - Mar 1 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1946 only - Oct 1 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1963 only - Oct 1 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1963 only - Dec 15 0:00 1:00 S
470f06616bf0701c5a3200c237477f8da34834a0Dominik LueckeRule Arg 1964 1966 - Mar 1 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1964 1966 - Oct 15 0:00 1:00 S
470f06616bf0701c5a3200c237477f8da34834a0Dominik LueckeRule Arg 1967 only - Apr 2 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1974 only - Jan 23 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1974 only - May 1 0:00 0 -
e5636f167d8113960d320407cbbd7cd3580241d4Christian MaederRule Arg 1988 only - Dec 1 0:00 1:00 S
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From Hernan G. Otero (1995-06-26):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# These corrections were contributed by InterSoft Argentina S.A.,
841716179ae865e8d61e4595b58965ede2722cdfDominik Luecke# obtaining the data from the:
841716179ae865e8d61e4595b58965ede2722cdfDominik Luecke# Talleres de Hidrografia Naval Argentina
841716179ae865e8d61e4595b58965ede2722cdfDominik Luecke# (Argentine Naval Hydrography Institute)
841716179ae865e8d61e4595b58965ede2722cdfDominik LueckeRule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
470f06616bf0701c5a3200c237477f8da34834a0Dominik LueckeRule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# From Hernan G. Otero (1995-06-26):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From this moment on, the law that mandated the daylight saving
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# time corrections was derogated and no more modifications
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# to the time zones (for daylight saving) are now made.
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# From Rives McDow (2000-01-10):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# which did not result in the switch of a time zone, as they stayed 9 hours
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# from the International Date Line.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik LueckeRule Arg 1999 only - Oct Sun>=1 0:00 1:00 S
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# From Paul Eggert (2007-12-28):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# DST was set to expire on March 5, not March 3, but since it was converted
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# to standard time on March 3 it's more convenient for us to pretend that
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# it ended on March 3.
e5636f167d8113960d320407cbbd7cd3580241d4Christian MaederRule Arg 2000 only - Mar 3 0:00 0 -
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# From Peter Gradelski via Steffen Thorsen (2000-03-01):
470f06616bf0701c5a3200c237477f8da34834a0Dominik Luecke# We just checked with our Sao Paulo office and they say the government of
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# Argentina decided not to become one of the countries that go on or off DST.
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# So Buenos Aires should be -3 hours from GMT at all times.
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# From Fabian L. Arce Jofre (2000-04-04):
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# The law that claimed DST for Argentina was derogated by President Fernando
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# de la Rua on March 2, 2000, because it would make people spend more energy
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# in the winter time, rather than less. The change took effect on March 3.
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# From Mariano Absatz (2001-06-06):
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# one of the major newspapers here in Argentina said that the 1999
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# Timezone Law (which never was effectively applied) will (would?) be
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# in effect.... The article is at
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# 1999-09-17, and published 1999-09-21. The official publication is at:
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# Regretfully, you have to subscribe (and pay) for the on-line version....
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# (2001-06-12):
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# the timezone for Argentina will not change next Sunday.
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# Apparently it will do so on Sunday 24th....
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# (2001-06-25):
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# Last Friday (yes, the last working day before the date of the change), the
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# Senate annulled the 1999 law that introduced the changes later postponed.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# It remains the vote of the Deputies..., but it will be the same....
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# This kind of things had always been done this way in Argentina.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# We are still -03:00 all year round in all of the country.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Steffen Thorsen (2007-12-21):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# A user (Leonardo Chaim) reported that Argentina will adopt DST....
34964d30438020ed5219478bbd82b57291850e86Dominik Luecke# all of the country (all Zone-entries) are affected. News reports like
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# that Argentina will use DST next year as well, from October to
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# March, although exact rules are not given.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From Jesper Norgaard Welen (2007-12-26)
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# The last hurdle of Argentina DST is over, the proposal was approved in
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# the lower chamber too (Deputados) with a vote 192 for and 2 against.
fdc8f215e8e4fa8bd3ff9483fcd7833a8aed2dafDominik Luecke# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# the original scanned proposal, where the dates and the zero hours are
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# clear and unambiguous...This is the article about final approval:
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# From Paul Eggert (2007-12-22):
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# For dates after mid-2008, the following rules are my guesses and
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# are quite possibly wrong, but are more likely than no DST at all.
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# From Alexander Krivenyshev (2008-09-05):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# As per message from Carlos Alberto Fonseca Arauz (Nicaragua),
d98cfdc55591a9982c8ec759520b6a4c28bd9f55Dominik Luecke# Argentina will start DST on Sunday October 19, 2008.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html">
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)">
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Rodrigo Severo (2008-10-06):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Here is some info available at a Gentoo bug related to TZ on Argentina's DST:
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 -------
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Hi, there is a problem with timezone-data-2008e and maybe with
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# timezone-data-2008f
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# Argentinian law [Number] 25.155 is no longer valid.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm">
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# The new one is law [Number] 26.350
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# So there is no summer time in Argentina for now.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Mariano Absatz (2008-10-20):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From 2008-10-19 until 2009-03-15
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009:
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# and Tierra del Fuego
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# it will not apply DST either (even when it was not included in Decree 1705/2008)
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From fullinet (2009-10-18):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# As announced in
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change")
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# "Por el momento, el Gobierno Nacional resolvio no modificar la hora
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# oficial, decision que estaba en estudio para su implementacion el
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# que la Argentina hoy, en estas condiciones meteorologicas, no necesita
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# la modificacion del huso horario, ya que 2009 nos encuentra con
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# crecimiento en la produccion y distribucion energetica."
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik LueckeRule Arg 2007 only - Dec 30 0:00 1:00 S
e5636f167d8113960d320407cbbd7cd3580241d4Christian MaederRule Arg 2008 2009 - Mar Sun>=15 0:00 0 -
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik LueckeRule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Mariano Absatz (2004-05-21):
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# Today it was officially published that the Province of Mendoza is changing
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# its timezone this winter... starting tomorrow night....
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Paul Eggert (2004-05-24):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# It's Law No. 7,210. This change is due to a public power emergency, so for
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# now we'll assume it's for this year only.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Paul Eggert (2006-03-22):
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# <a href="http://www.spicasc.net/horvera.html">
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# Hora de verano para la Republica Argentina (2003-06-08)
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# </a> says that standard time in Argentina from 1894-10-31
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# over Shanks & Pottenger.
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# From Mariano Absatz (2004-06-05):
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# These media articles from a major newspaper mostly cover the current state:
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.lanacion.com.ar/04/05/27/de_604825.asp
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# http://www.lanacion.com.ar/04/05/28/de_605203.asp
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# The following eight (8) provinces pulled clocks back to UTC-04:00 at
5e5d3e82af3bc2834f8718a52d9f45da80220273Dominik Luecke# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# Apparently, all nine provinces would go back to UTC-03:00 at the same
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# time in October 17th.
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# Tierra del Fuego, Tucuman.
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# From Mariano Absatz (2004-06-14):
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# annoyance with the change is much higher than the power savings obtained....
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# From Gwillim Law (2004-06-14):
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# "The time change in Tierra del Fuego was a conflicted decision from
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# the start. The government had decreed that the measure would take
b7e423e8f5a1093a98fd3be5ddcc6307d4a63ebcDominik Luecke# effect on June 1, but a normative error forced the new time to begin
1fb981ffeaa43aff14d25dc89aa0139d4929282dDominik Luecke# three days earlier, from a Saturday to a Sunday....
1fb981ffeaa43aff14d25dc89aa0139d4929282dDominik Luecke# Our understanding was that the change was originally scheduled to take place
1fb981ffeaa43aff14d25dc89aa0139d4929282dDominik Luecke# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
1fb981ffeaa43aff14d25dc89aa0139d4929282dDominik Luecke# provinces). Sunday was May 30, only two days earlier. So the article
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# contains a contradiction. I would give more credence to the Saturday/Sunday
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# date than the "three days earlier" phrase, and conclude that Tierra del
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# Fuego set its clocks back at 2004-05-30 00:00.
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# From Steffen Thorsen (2004-10-05):
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# The previous law 7210 which changed the province of Mendoza's time zone
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# back in May have been modified slightly in a new law 7277, which set the
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# new end date to 2004-09-26 (original date was 2004-10-17).
05a206508bc898f87fe6ab6e069814df3c29d303Dominik Luecke# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# From Mariano Absatz (2004-10-05):
e5636f167d8113960d320407cbbd7cd3580241d4Christian Maeder# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
# The change is supposed to take place Monday the 21.st at 0:00
# America/Argentina/San_Luis... of course I can't remember if San Luis's
# 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
# <a href="http://www.sanluis.gov.ar">
# <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912">
# ...the Province of San Luis is a case in itself.
# America/Argentina/San_Luis entries should change to use these...
# timezone must be called "WART/WARST" even when most of the time (like,
Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31
Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
Zone America/La_Paz -4:32:36 - LMT 1890
# <a href="http://pcdsh01.on.br/verao1.html">
# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
# ...by law number 11.662 of April 24, 2008 (published in the "Diario
# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008">
# As a result of the above Decree I believe the America/Rio_Branco
# important/populated city in the affected area.
# <a href="http://www.worldtimezone.com/brazil-time-new-old.php">
# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western
# <a href="http://pcdsh01.on.br/DecHV.html">
# It has not yet been posted to http://pcdsh01.on.br/DecHV.html
# <a href="http://www.mme.gov.br/first">
# 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)
# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
# 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)
# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)
# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)
# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)
# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)
# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)
# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)
# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)
# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)
# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)
# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),
# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
Zone America/Noronha -2:09:40 - LMT 1914
Zone America/Belem -3:13:56 - LMT 1914
Zone America/Santarem -3:38:48 - LMT 1914
Zone America/Fortaleza -2:34:00 - LMT 1914
Zone America/Recife -2:19:36 - LMT 1914
Zone America/Araguaina -3:12:48 - LMT 1914
Zone America/Maceio -2:22:52 - LMT 1914
# There are too many Salvadors elsewhere, so use America/Bahia instead
# of America/Salvador.
Zone America/Bahia -2:34:04 - LMT 1914
Zone America/Sao_Paulo -3:06:28 - LMT 1914
Zone America/Campo_Grande -3:38:28 - LMT 1914
Zone America/Cuiaba -3:44:20 - LMT 1914
Zone America/Porto_Velho -4:15:36 - LMT 1914
Zone America/Boa_Vista -4:02:40 - LMT 1914
Zone America/Manaus -4:00:04 - LMT 1914
Zone America/Eirunepe -4:39:28 - LMT 1914
Zone America/Rio_Branco -4:31:12 - LMT 1914
# 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
# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
# and Saturday 3/29 at 22:00 for Pacific/Easter)
# <a href="http://www.shoa.cl/servicios/supremo316.pdf">
# <a href="http://www.horaoficial.cl/cambio.htm">
# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
# N.B.: the end of March 29 in Chile is March 30 in Universal time,
Zone America/Santiago -4:42:46 - LMT 1890
Zone Pacific/Easter -7:17:44 - LMT 1890
# Sala y Gomez Island is like Pacific/Easter.
# San Felix, and Antarctic bases, are like America/Santiago.
Zone America/Bogota -4:56:20 - LMT 1884 Mar 13
# no information; probably like America/Bogota
Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad
# <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
Zone America/Guayaquil -5:19:20 - LMT 1890
Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
Zone Atlantic/Stanley -3:51:24 - LMT 1890
Zone America/Cayenne -3:29:20 - LMT 1911 Jul
Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
Zone America/Asuncion -3:50:40 - LMT 1890
Zone America/Lima -5:08:12 - LMT 1890
Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
Zone America/Paramaribo -3:40:40 - LMT 1911
Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
Zone America/Caracas -4:27:44 - LMT 1890