2003-04-28 18:51:20 +00:00
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# @(#)southamerica 7.46
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1994-09-13 21:50:20 +00:00
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# This data is by no means authoritative; if you think you know better,
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# go ahead and edit the file (and please send any changes to
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# tz@elsie.nci.nih.gov for general use in the future).
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2000-03-29 13:31:51 +00:00
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# From Paul Eggert <eggert@twinsun.com> (1999-07-07):
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1994-09-13 21:50:20 +00:00
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# A good source for time zone historical data outside the U.S. is
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2000-03-29 13:31:51 +00:00
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# Thomas G. Shanks, The International Atlas (5th edition),
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# San Diego: ACS Publications, Inc. (1999).
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1996-12-02 16:59:56 +00:00
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#
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2001-11-09 19:00:37 +00:00
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# Gwillim Law writes that a good source
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1996-12-02 16:59:56 +00:00
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# for recent time zone data is the International Air Transport
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# Association's Standard Schedules Information Manual (IATA SSIM),
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# published semiannually. Law sent in several helpful summaries
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# of the IATA's data after 1990.
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#
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# Except where otherwise noted, Shanks is the source for entries through 1990,
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# and IATA SSIM is the source for entries after 1990.
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1994-09-13 21:50:20 +00:00
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#
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1996-11-19 19:09:28 +00:00
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# Earlier editions of these tables used the North American style (e.g. ARST and
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# ARDT for Argentine Standard and Daylight Time), but the following quote
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# suggests that it's better to use European style (e.g. ART and ARST).
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# I suggest the use of _Summer time_ instead of the more cumbersome
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# _daylight-saving time_. _Summer time_ seems to be in general use
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# in Europe and South America.
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# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
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# H L Mencken, _The American Language: Supplement I_ (1960), p 466
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2000-03-29 13:31:51 +00:00
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#
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# Earlier editions of these tables also used the North American style
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# for time zones in Brazil, but this was incorrect, as Brazilians say
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# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in
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# the railroad sector, writes (1999-07-06):
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# The subject of time zones is currently a matter of discussion/debate in
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# Brazil. Let's say that "the Brasilia time" is considered the
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# "official time" because Brasilia is the capital city.
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# The other three time zones are called "Brasilia time "minus one" or
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# "plus one" or "plus two". As far as I know there is no such
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# name/designation as "Eastern Time" or "Central Time".
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# So I invented the following (English-language) abbreviations for now.
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# Corrections are welcome!
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# std dst
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# -2:00 FNT FNST Fernando de Noronha
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# -3:00 BRT BRST Brasilia
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# -4:00 AMT AMST Amazon
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# -5:00 ACT ACST Acre
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1994-09-13 21:50:20 +00:00
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###############################################################################
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###############################################################################
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# Argentina
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1996-11-19 19:09:28 +00:00
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# From Bob Devine (1988-01-28):
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1994-09-13 21:50:20 +00:00
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# Argentina: first Sunday in October to first Sunday in April since 1976.
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# Double Summer time from 1969 to 1974. Switches at midnight.
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1996-11-19 19:09:28 +00:00
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# From U. S. Naval Observatory (1988-01-199):
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1994-09-13 21:50:20 +00:00
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# ARGENTINA 3 H BEHIND UTC
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1996-11-19 19:09:28 +00:00
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# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
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1997-01-02 17:17:39 +00:00
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# I am sending modifications to the Argentine time zone table...
|
1995-08-04 15:53:27 +00:00
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# AR was chosen because they are the ISO letters that represent Argentina.
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1994-09-13 21:50:20 +00:00
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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1996-11-19 19:09:28 +00:00
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Rule Arg 1930 only - Dec 1 0:00 1:00 S
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Rule Arg 1931 only - Apr 1 0:00 0 -
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Rule Arg 1931 only - Oct 15 0:00 1:00 S
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Rule Arg 1932 1940 - Mar 1 0:00 0 -
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Rule Arg 1932 1939 - Nov 1 0:00 1:00 S
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Rule Arg 1940 only - Jul 1 0:00 1:00 S
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Rule Arg 1941 only - Jun 15 0:00 0 -
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Rule Arg 1941 only - Oct 15 0:00 1:00 S
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Rule Arg 1943 only - Aug 1 0:00 0 -
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Rule Arg 1943 only - Oct 15 0:00 1:00 S
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Rule Arg 1946 only - Mar 1 0:00 0 -
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Rule Arg 1946 only - Oct 1 0:00 1:00 S
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Rule Arg 1963 only - Oct 1 0:00 0 -
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Rule Arg 1963 only - Dec 15 0:00 1:00 S
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Rule Arg 1964 1966 - Mar 1 0:00 0 -
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Rule Arg 1964 1966 - Oct 15 0:00 1:00 S
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2002-04-04 18:11:12 +00:00
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Rule Arg 1967 only - Apr 2 0:00 0 -
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2000-03-29 13:31:51 +00:00
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Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
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Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
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1996-11-19 19:09:28 +00:00
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Rule Arg 1974 only - Jan 23 0:00 1:00 S
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Rule Arg 1974 only - May 1 0:00 0 -
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Rule Arg 1988 only - Dec 1 0:00 1:00 S
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1995-08-04 15:53:27 +00:00
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#
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1996-11-19 19:09:28 +00:00
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# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
|
1995-08-04 15:53:27 +00:00
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# These corrections were contributed by InterSoft Argentina S.A.,
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# obtaining the data from the:
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# Talleres de Hidrografia Naval Argentina
|
1997-01-02 17:17:39 +00:00
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# (Argentine Naval Hydrography Institute)
|
1995-08-04 15:53:27 +00:00
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#
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2000-03-29 13:31:51 +00:00
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# Shanks stops after 1992-03-01; go with Otero.
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1996-11-19 19:09:28 +00:00
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Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
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Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
|
1995-08-04 15:53:27 +00:00
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#
|
1996-11-19 19:09:28 +00:00
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# From Hernan G. Otero <hernan@isoft.com.ar> (1995-06-26):
|
1995-08-04 15:53:27 +00:00
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# From this moment on, the law that mandated the daylight saving
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# time corrections was derogated and no more modifications
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# to the time zones (for daylight saving) are now made.
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#
|
2000-03-29 13:31:51 +00:00
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# From Rives McDow (2000-01-10):
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# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
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# which did not result in the switch of a time zone, as they stayed 9 hours
|
2000-08-10 19:20:14 +00:00
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# from the International Date Line.
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Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S
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Rule Arg 2000 only - Mar Sun>=1 0:00 0 -
|
2000-03-29 13:31:51 +00:00
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#
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# From Peter Gradelski via Steffen Thorsen (2000-03-01):
|
2000-10-25 19:33:50 +00:00
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# We just checked with our Sao Paulo office and they say the government of
|
2000-03-29 13:31:51 +00:00
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# Argentina decided not to become one of the countries that go on or off DST.
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# So Buenos Aires should be -3 hours from GMT at all times.
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#
|
2000-08-10 19:20:14 +00:00
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# From Fabian L. Arce Jofre <farcejofre@bigfoot.com> (2000-04-04):
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# The law that claimed DST for Argentina was derogated by President Fernando
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# de la Rua on March 2, 2000, because it would make people spend more energy
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# in the winter time, rather than less. The change took effect on March 3.
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#
|
2001-11-09 19:00:37 +00:00
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# From Mariano Absatz (2001-06-06):
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# one of the major newspapers here in Argentina said that the 1999
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# Timezone Law (which never was effectively applied) will (would?) be
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# in effect.... The article is at
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# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
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# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
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# 1999-09-17, and published 1999-09-21. The official publication is at:
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# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
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# Regretfully, you have to subscribe (and pay) for the on-line version....
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#
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# (2001-06-12):
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# the timezone for Argentina will not change next Sunday.
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# Apparently it will do so on Sunday 24th....
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# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
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#
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# (2001-06-25):
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# Last Friday (yes, the last working day before the date of the change), the
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# Senate annulled the 1999 law that introduced the changes later postponed.
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# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
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# It remains the vote of the Deputies..., but it will be the same....
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# This kind of things had always been done this way in Argentina.
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# We are still -03:00 all year round in all of the country.
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#
|
2002-04-04 18:11:12 +00:00
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#
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|
# From Paul Eggert (2002-01-22):
|
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|
# <a href="http://www.spicasc.net/horvera.html">
|
|
|
|
# Hora de verano para la Republica Argentina (2000-10-01)
|
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|
# </a> says that standard time in Argentina from 1894-10-31
|
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# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
|
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# over Shanks.
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# Unless otherwise specified, data are from Shanks through 1992, from
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# the IATA otherwise. As noted below, Shanks says that
|
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# America/Cordoba split into 7 subregions during 1991/1992, but we
|
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# haven't verified this yet so for now we'll keep it a single region.
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#
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
1996-12-02 16:59:56 +00:00
|
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|
#
|
2000-08-10 19:20:14 +00:00
|
|
|
# Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC),
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# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
|
2002-04-04 18:11:12 +00:00
|
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|
Zone America/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
|
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-4:16:48 - CMT 1920 May # Cordoba Mean Time
|
1996-11-19 19:09:28 +00:00
|
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|
-4:00 - ART 1930 Dec
|
2000-03-29 13:31:51 +00:00
|
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|
-4:00 Arg AR%sT 1969 Oct 5
|
2002-04-04 18:11:12 +00:00
|
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-3:00 Arg AR%sT 1999 Oct 3
|
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-4:00 Arg AR%sT 2000 Mar 3
|
2000-08-10 19:20:14 +00:00
|
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|
-3:00 - ART
|
1996-12-02 16:59:56 +00:00
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#
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|
# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
|
2002-04-04 18:11:12 +00:00
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|
# Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE),
|
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# Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP),
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# Neuquen (NQ), Rio Negro (RN), Chubut (CH)
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#
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|
# Shanks also makes the following claims, which we haven't verified:
|
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# - Formosa switched to -3:00 on 1991-01-07.
|
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# - La Rioja and San Juan switched to -4:00 on 1991-03-01
|
2002-10-16 01:53:33 +00:00
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# and then to -3:00 on 1991-05-07.
|
2002-04-04 18:11:12 +00:00
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# - Misiones switched to -3:00 on 1990-12-29.
|
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# - Chaco switched to -3:00 on 1991-01-04.
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# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
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# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
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# - Santiago del Estero switched to -4:00 on 1991-04-01,
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# then to -3:00 on 1991-04-26.
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# If we need to add Zones for these areas, we may need to have a subdirectory
|
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# for Argentina, as e.g. "America/San_Luis" is too ambiguious.
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#
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Zone America/Cordoba -4:16:48 - LMT 1894 Oct 31
|
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-4:16:48 - CMT 1920 May
|
1996-12-02 16:59:56 +00:00
|
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|
-4:00 - ART 1930 Dec
|
2000-03-29 13:31:51 +00:00
|
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-4:00 Arg AR%sT 1969 Oct 5
|
2002-04-04 18:11:12 +00:00
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|
-3:00 Arg AR%sT 1991 Mar 3
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-4:00 - WART 1991 Oct 20
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-3:00 Arg AR%sT 1999 Oct 3
|
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-4:00 Arg AR%sT 2000 Mar 3
|
1996-12-02 16:59:56 +00:00
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|
-3:00 - ART
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#
|
|
|
|
# Jujuy (JY)
|
2002-04-04 18:11:12 +00:00
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|
Zone America/Jujuy -4:21:12 - LMT 1894 Oct 31
|
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-4:16:48 - CMT 1920 May
|
1996-12-02 16:59:56 +00:00
|
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|
-4:00 - ART 1930 Dec
|
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|
-4:00 Arg AR%sT 1969 Oct 5
|
2002-04-04 18:11:12 +00:00
|
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|
-3:00 Arg AR%sT 1990 Mar 4
|
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|
-4:00 - WART 1990 Oct 28
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|
-4:00 1:00 WARST 1991 Mar 17
|
1996-12-02 16:59:56 +00:00
|
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|
-4:00 - WART 1991 Oct 6
|
2002-04-04 18:11:12 +00:00
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|
-3:00 1:00 ARST 1992
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|
-3:00 Arg AR%sT 1999 Oct 3
|
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|
-4:00 Arg AR%sT 2000 Mar 3
|
1996-12-02 16:59:56 +00:00
|
|
|
-3:00 - ART
|
|
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|
#
|
|
|
|
# Catamarca (CT)
|
2002-04-04 18:11:12 +00:00
|
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|
Zone America/Catamarca -4:23:08 - LMT 1894 Oct 31
|
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|
-4:16:48 - CMT 1920 May
|
1996-12-02 16:59:56 +00:00
|
|
|
-4:00 - ART 1930 Dec
|
2000-03-29 13:31:51 +00:00
|
|
|
-4:00 Arg AR%sT 1969 Oct 5
|
2002-04-04 18:11:12 +00:00
|
|
|
-3:00 Arg AR%sT 1991 Mar 3
|
|
|
|
-4:00 - WART 1991 Oct 20
|
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|
-3:00 Arg AR%sT 1999 Oct 3
|
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|
-4:00 Arg AR%sT 2000 Mar 3
|
1996-12-02 16:59:56 +00:00
|
|
|
-3:00 - ART
|
|
|
|
#
|
|
|
|
# Mendoza (MZ)
|
2002-04-04 18:11:12 +00:00
|
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|
Zone America/Mendoza -4:35:16 - LMT 1894 Oct 31
|
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|
-4:16:48 - CMT 1920 May
|
1996-12-02 16:59:56 +00:00
|
|
|
-4:00 - ART 1930 Dec
|
|
|
|
-4:00 Arg AR%sT 1969 Oct 5
|
2002-04-04 18:11:12 +00:00
|
|
|
-3:00 Arg AR%sT 1990 Mar 4
|
|
|
|
-4:00 - WART 1990 Oct 15
|
|
|
|
-4:00 1:00 WARST 1991 Mar 1
|
1996-12-02 16:59:56 +00:00
|
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|
-4:00 - WART 1991 Oct 15
|
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|
-4:00 1:00 WARST 1992 Mar 1
|
|
|
|
-4:00 - WART 1992 Oct 18
|
2002-04-04 18:11:12 +00:00
|
|
|
-3:00 Arg AR%sT 1999 Oct 3
|
|
|
|
-4:00 Arg AR%sT 2000 Mar 3
|
1996-12-02 16:59:56 +00:00
|
|
|
-3:00 - ART
|
1994-09-13 21:50:20 +00:00
|
|
|
|
1996-03-02 20:48:55 +00:00
|
|
|
# Aruba
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
|
1996-11-19 19:09:28 +00:00
|
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|
-4:30 - ANT 1965 # Netherlands Antilles Time
|
1996-03-02 20:48:55 +00:00
|
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|
-4:00 - AST
|
|
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|
1994-09-13 21:50:20 +00:00
|
|
|
# Bolivia
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/La_Paz -4:32:36 - LMT 1890
|
2001-11-09 19:00:37 +00:00
|
|
|
-4:32:36 - CMT 1931 Oct 15 # Calamarca MT
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
|
|
|
|
-4:00 - BOT # Bolivia Time
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# Brazil
|
|
|
|
|
1996-11-19 19:09:28 +00:00
|
|
|
# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
|
1994-09-13 21:50:20 +00:00
|
|
|
# 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.
|
1996-12-02 16:59:56 +00:00
|
|
|
|
|
|
|
# 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.
|
|
|
|
|
1999-01-21 21:31:40 +00:00
|
|
|
# From Marcos Tadeu (1998-09-27):
|
|
|
|
# <a href="http://pcdsh01.on.br/verao1.html">
|
|
|
|
# Brazilian official page
|
|
|
|
# </a>
|
2001-04-06 16:43:21 +00:00
|
|
|
|
|
|
|
# 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
|
|
|
|
|
2002-10-16 01:53:33 +00:00
|
|
|
# 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 Paul Eggert (2002-10-10):
|
|
|
|
# The official decrees referenced below are mostly taken from
|
1999-01-21 21:31:40 +00:00
|
|
|
# <a href="http://pcdsh01.on.br/DecHV.html">
|
|
|
|
# Decretos sobre o Horario de Verao no Brasil
|
2002-10-16 01:53:33 +00:00
|
|
|
# </a> (2001-09-20, in Portuguese).
|
2000-10-25 19:33:50 +00:00
|
|
|
# The official site for all decrees, including those not related to time, is
|
|
|
|
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
|
|
|
|
# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos
|
|
|
|
# </a> (in Portuguese).
|
1999-01-21 21:31:40 +00:00
|
|
|
|
1994-09-13 21:50:20 +00:00
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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)
|
2000-03-29 13:31:51 +00:00
|
|
|
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
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
|
1999-01-21 21:31:40 +00:00
|
|
|
# revoked DST.
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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)
|
2000-03-29 13:31:51 +00:00
|
|
|
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 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1953 only - Mar 1 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
|
1999-01-21 21:31:40 +00:00
|
|
|
# revoked DST.
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1963 only - Dec 9 0:00 1:00 S
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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).
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1964 only - Mar 1 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1965 only - Jan 31 0:00 1:00 S
|
|
|
|
Rule Brazil 1965 only - Mar 31 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1965 only - Dec 1 0:00 1:00 S
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1966 1968 - Mar 1 0:00 0 -
|
|
|
|
Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1985 only - Nov 2 0:00 1:00 S
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree 92,310 (1986-01-21)
|
|
|
|
# Decree 92,463 (1986-03-13)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1986 only - Mar 15 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree 93,316 (1986-10-01)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1986 only - Oct 25 0:00 1:00 S
|
|
|
|
Rule Brazil 1987 only - Feb 14 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1987 only - Oct 25 0:00 1:00 S
|
|
|
|
Rule Brazil 1988 only - Feb 7 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1988 only - Oct 16 0:00 1:00 S
|
|
|
|
Rule Brazil 1989 only - Jan 29 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
|
|
|
|
# with the same exceptions
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1989 only - Oct 15 0:00 1:00 S
|
|
|
|
Rule Brazil 1990 only - Feb 11 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# 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.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1990 only - Oct 21 0:00 1:00 S
|
|
|
|
Rule Brazil 1991 only - Feb 17 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# <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.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1991 only - Oct 20 0:00 1:00 S
|
|
|
|
Rule Brazil 1992 only - Feb 9 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
|
|
|
|
# adopted by same states.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1992 only - Oct 25 0:00 1:00 S
|
|
|
|
Rule Brazil 1993 only - Jan 31 0:00 0 -
|
1999-01-21 21:31:40 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
|
1999-02-02 19:03:38 +00:00
|
|
|
# adopted by same states, plus AM.
|
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22)
|
|
|
|
# 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 TO.
|
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
|
|
|
|
# adds AL, SE.
|
2000-03-29 13:31:51 +00:00
|
|
|
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 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
|
|
|
|
# adopted by same states, minus AL, SE.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1996 only - Oct 6 0:00 1:00 S
|
|
|
|
Rule Brazil 1997 only - Feb 16 0:00 0 -
|
1999-01-21 21:31:40 +00:00
|
|
|
# From Daniel C. Sobral <dcs@gns.com.br> (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.
|
|
|
|
#
|
|
|
|
# From Paul Eggert (1998-02-25):
|
|
|
|
# <a href="http://churchnet.ucsm.ac.uk/news/files2/news165.htm">
|
|
|
|
# Brazil Prepares for Papal Visit
|
|
|
|
# </a>,
|
|
|
|
# Church Net UK (1997-10-02).
|
|
|
|
#
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree 2,317 (1997-09-04), adopted by same states.
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1997 only - Oct 6 0:00 1:00 S
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
|
1999-01-21 21:31:40 +00:00
|
|
|
# (1998-02-10)
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Brazil 1998 only - Mar 1 0:00 0 -
|
1999-02-02 19:03:38 +00:00
|
|
|
# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
|
2000-03-29 13:31:51 +00:00
|
|
|
# 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)
|
2000-10-25 19:33:50 +00:00
|
|
|
# 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.
|
2001-04-06 16:43:21 +00:00
|
|
|
# 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.
|
2001-11-09 19:00:37 +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.
|
2002-10-16 01:53:33 +00:00
|
|
|
Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
|
|
|
|
Rule Brazil 2001 max - 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"></a>
|
|
|
|
Rule Brazil 2002 only - Nov 3 0:00 1:00 S
|
2001-11-09 19:00:37 +00:00
|
|
|
#
|
2002-10-16 01:53:33 +00:00
|
|
|
Rule Brazil 2003 max - Oct Sun>=8 0:00 1:00 S
|
2001-11-09 19:00:37 +00:00
|
|
|
# The latest decree listed above says that the following states observe DST:
|
2002-10-16 01:53:33 +00:00
|
|
|
# BA, DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP, TO.
|
2001-04-06 16:43:21 +00:00
|
|
|
#
|
2002-10-16 01:53:33 +00:00
|
|
|
# For dates after mid-2003, the above rules with TO="max" are guesses
|
2000-03-29 13:31:51 +00:00
|
|
|
# and are quite possibly wrong, but are more likely than no DST at all.
|
1999-01-21 21:31:40 +00:00
|
|
|
|
1996-12-02 16:59:56 +00:00
|
|
|
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2001-04-06 16:43:21 +00:00
|
|
|
# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz,
|
|
|
|
# Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo
|
1994-09-13 21:50:20 +00:00
|
|
|
Zone America/Noronha -2:09:40 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-2:00 Brazil FN%sT 1990 Sep 17
|
|
|
|
-2:00 - FNT
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2000-03-29 13:31:51 +00:00
|
|
|
# Amapa (AP), east Para (PA)
|
2001-04-06 16:43:21 +00:00
|
|
|
# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
|
1999-02-02 19:03:38 +00:00
|
|
|
Zone America/Belem -3:13:56 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-3:00 Brazil BR%sT 1988 Sep 12
|
|
|
|
-3:00 - BRT
|
1999-02-02 19:03:38 +00:00
|
|
|
#
|
2000-03-29 13:31:51 +00:00
|
|
|
# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
|
2001-04-06 16:43:21 +00:00
|
|
|
# Paraiba (PB)
|
1996-12-02 16:59:56 +00:00
|
|
|
Zone America/Fortaleza -2:34:00 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-3:00 Brazil BR%sT 1990 Sep 17
|
|
|
|
-3:00 - BRT 1999 Sep 30
|
2001-04-06 16:43:21 +00:00
|
|
|
-3:00 Brazil BR%sT 2000 Oct 22
|
2001-11-09 19:00:37 +00:00
|
|
|
-3:00 - BRT 2001 Sep 13
|
2002-10-16 01:53:33 +00:00
|
|
|
-3:00 Brazil BR%sT 2002 Oct 1
|
|
|
|
-3:00 - BRT
|
2001-04-06 16:43:21 +00:00
|
|
|
#
|
|
|
|
# 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
|
2001-11-09 19:00:37 +00:00
|
|
|
-3:00 - BRT 2001 Sep 13
|
2002-10-16 01:53:33 +00:00
|
|
|
-3:00 Brazil BR%sT 2002 Oct 1
|
|
|
|
-3:00 - BRT
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2000-03-29 13:31:51 +00:00
|
|
|
# Tocantins (TO)
|
1999-02-02 19:03:38 +00:00
|
|
|
Zone America/Araguaina -3:12:48 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-3:00 Brazil BR%sT 1990 Sep 17
|
|
|
|
-3:00 - BRT 1995 Sep 14
|
|
|
|
-3:00 Brazil BR%sT
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2000-03-29 13:31:51 +00:00
|
|
|
# Alagoas (AL), Sergipe (SE)
|
1999-02-02 19:03:38 +00:00
|
|
|
Zone America/Maceio -2:22:52 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-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
|
2001-04-06 16:43:21 +00:00
|
|
|
-3:00 Brazil BR%sT 2000 Oct 22
|
2001-11-09 19:00:37 +00:00
|
|
|
-3:00 - BRT 2001 Sep 13
|
2002-10-16 01:53:33 +00:00
|
|
|
-3:00 Brazil BR%sT 2002 Oct 1
|
|
|
|
-3:00 - BRT
|
2000-03-29 13:31:51 +00:00
|
|
|
#
|
|
|
|
# Bahia (BA), 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)
|
1994-09-13 21:50:20 +00:00
|
|
|
Zone America/Sao_Paulo -3:06:28 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-3:00 Brazil BR%sT 1963 Oct 23 00:00
|
|
|
|
-3:00 1:00 BRST 1964
|
|
|
|
-3:00 Brazil BR%sT
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2001-11-09 19:00:37 +00:00
|
|
|
# Mato Grosso (MT), Mato Grosso do Sul (MS)
|
1996-12-02 16:59:56 +00:00
|
|
|
Zone America/Cuiaba -3:44:20 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-4:00 Brazil AM%sT
|
1999-02-02 19:03:38 +00:00
|
|
|
#
|
2000-03-29 13:31:51 +00:00
|
|
|
# west Para (PA), Rondonia (RO)
|
2001-04-06 16:43:21 +00:00
|
|
|
# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
|
1999-02-02 19:03:38 +00:00
|
|
|
Zone America/Porto_Velho -4:15:36 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-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
|
2001-04-06 16:43:21 +00:00
|
|
|
-4:00 Brazil AM%sT 2000 Oct 15
|
|
|
|
-4:00 - AMT
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2001-04-06 16:43:21 +00:00
|
|
|
# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto
|
1996-12-02 16:59:56 +00:00
|
|
|
Zone America/Manaus -4:00:04 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-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
|
1996-12-02 16:59:56 +00:00
|
|
|
#
|
2001-04-06 16:43:21 +00:00
|
|
|
# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
|
|
|
|
# Eirunepe, Envira, Ipixuna
|
|
|
|
Zone America/Eirunepe -4:39:28 - LMT 1914
|
2000-03-29 13:31:51 +00:00
|
|
|
-5:00 Brazil AC%sT 1988 Sep 12
|
2001-04-06 16:43:21 +00:00
|
|
|
-5:00 - ACT 1993 Sep 28
|
|
|
|
-5:00 Brazil AC%sT 1994 Sep 22
|
2000-03-29 13:31:51 +00:00
|
|
|
-5:00 - ACT
|
1994-09-13 21:50:20 +00:00
|
|
|
#
|
2001-04-06 16:43:21 +00:00
|
|
|
# Acre (AC)
|
|
|
|
Zone America/Rio_Branco -4:31:12 - LMT 1914
|
|
|
|
-5:00 Brazil AC%sT 1988 Sep 12
|
|
|
|
-5:00 - ACT
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
|
|
|
|
# Chile
|
|
|
|
|
1996-03-02 20:48:55 +00:00
|
|
|
# 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.
|
1999-01-21 21:31:40 +00:00
|
|
|
# (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).
|
1994-09-13 21:50:20 +00:00
|
|
|
|
2000-03-29 13:31:51 +00:00
|
|
|
# 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).
|
|
|
|
|
2001-11-09 19:00:37 +00:00
|
|
|
# From Gwillim Law (2001-05-04):
|
|
|
|
# I came across another article in "La Tercera" about Chilean DST.
|
|
|
|
# <http://www.tercera.cl/diario/2000/10/13/t-extras.html>
|
|
|
|
# It clearly confirms my earlier suggestion, that DST begins at 22:00
|
|
|
|
# on Easter Island.... But it also seems to be saying that the
|
|
|
|
# observance of DST in Chile began in 1966, rather than 1969 as
|
|
|
|
# ... [Shanks] has it....
|
|
|
|
#
|
|
|
|
# My translation:
|
|
|
|
#
|
|
|
|
# "The Chilean Army has announced that summer time will begin tomorrow,
|
|
|
|
# Saturday, October 14 in continental Chile, insular Chile, and
|
|
|
|
# Antarctica, as provided by Supreme Decree 25 of January 11, 1966.
|
|
|
|
# By the preceding, official time in continental Chile and Chilean
|
|
|
|
# Antarctic, and official time in Western Insular Chile, which applies
|
|
|
|
# to Easter Island and Sala y Gomez Island, will be set forward at
|
|
|
|
# midnight and at 22:00, respectively, by 20 minutes."
|
|
|
|
|
|
|
|
# From Paul Eggert (2001-05-04):
|
|
|
|
# Go with this article in preference to Shanks's 1969 date for modern DST.
|
2001-04-06 16:43:21 +00:00
|
|
|
# Assume this rule has been used since DST was introduced in the islands.
|
|
|
|
|
2003-04-28 18:51:20 +00:00
|
|
|
# From Paul Eggert (2002-10-24):
|
|
|
|
# <http://www.shoa.cl/shoa/faqhoraoficial.htm> gives many details that
|
|
|
|
# disagree with the following table, but we haven't had time to compare them.
|
|
|
|
|
1994-09-13 21:50:20 +00:00
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
2000-03-29 13:31:51 +00:00
|
|
|
Rule Chile 1918 only - Sep 1 0:00 1:00 S
|
|
|
|
Rule Chile 1919 only - Jul 2 0:00 0 -
|
|
|
|
Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
|
|
|
|
Rule Chile 1928 1932 - Apr 1 0:00 0 -
|
2001-11-09 19:00:37 +00:00
|
|
|
Rule Chile 1966 1997 - Oct Sun>=9 4:00u 1:00 S
|
|
|
|
Rule Chile 1967 1998 - Mar Sun>=9 3:00u 0 -
|
2001-04-06 16:43:21 +00:00
|
|
|
Rule Chile 1998 only - Sep 27 4:00u 1:00 S
|
|
|
|
Rule Chile 1999 only - Apr 4 3:00u 0 -
|
|
|
|
Rule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S
|
|
|
|
Rule Chile 2000 max - Mar Sun>=9 3:00u 0 -
|
1996-12-02 16:59:56 +00:00
|
|
|
# IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14;
|
2000-03-29 13:31:51 +00:00
|
|
|
# (1996-09) says 1998-03-08. Ignore these.
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Santiago -4:42:40 - LMT 1890
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:42:40 - SMT 1910 # Santiago Mean Time
|
|
|
|
-5:00 Chile CL%sT 1932 Sep # Chile Time
|
|
|
|
-4:00 Chile CL%sT
|
1994-09-13 21:50:20 +00:00
|
|
|
Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri
|
1996-11-19 19:09:28 +00:00
|
|
|
-7:17:28 - MMT 1932 Sep # Mataveri Mean Time
|
|
|
|
-7:00 Chile EAS%sT 1982 Mar 14 # Easter I Time
|
|
|
|
-6:00 Chile EAS%sT
|
1994-09-13 21:50:20 +00:00
|
|
|
#
|
2001-11-09 19:00:37 +00:00
|
|
|
# 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.
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# Colombia
|
2000-03-29 13:31:51 +00:00
|
|
|
# Shanks specifies 24:00 for 1992 transition times; go with IATA,
|
|
|
|
# as it seems implausible to change clocks at midnight New Year's Eve.
|
1996-12-02 16:59:56 +00:00
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
|
|
Rule CO 1992 only - May 2 0:00 1:00 S
|
|
|
|
Rule CO 1992 only - Dec 31 0:00 0 -
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Bogota -4:56:20 - LMT 1884 Mar 13
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time
|
1996-12-02 16:59:56 +00:00
|
|
|
-5:00 CO CO%sT # Colombia Time
|
1994-09-13 21:50:20 +00:00
|
|
|
# Malpelo, Providencia, San Andres
|
|
|
|
# no information; probably like America/Bogota
|
|
|
|
|
|
|
|
# Curacao
|
2000-03-29 13:31:51 +00:00
|
|
|
# Shanks says that Bottom and Oranjestad have been at -4:00 since
|
1999-01-21 21:31:40 +00:00
|
|
|
# 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.
|
|
|
|
# This all predates our 1970 cutoff, though.
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:30 - ANT 1965 # Netherlands Antilles Time
|
1994-09-13 21:50:20 +00:00
|
|
|
-4:00 - AST
|
|
|
|
|
|
|
|
# Ecuador
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Guayaquil -5:19:20 - LMT 1890
|
1996-11-19 19:09:28 +00:00
|
|
|
-5:14:00 - QMT 1931 # Quito Mean Time
|
|
|
|
-5:00 - ECT # Ecuador Time
|
1994-09-13 21:50:20 +00:00
|
|
|
Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
|
1996-11-19 19:09:28 +00:00
|
|
|
-5:00 - ECT 1986
|
|
|
|
-6:00 - GALT # Galapagos Time
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# Falklands
|
2001-04-06 16:43:21 +00:00
|
|
|
|
|
|
|
# From Paul Eggert (2001-03-05):
|
|
|
|
# Between 1990 and 2000 inclusive, Shanks and the IATA agree except
|
|
|
|
# the IATA gives 1996-09-08. Go with Shanks.
|
|
|
|
|
|
|
|
# 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.
|
|
|
|
|
1994-09-13 21:50:20 +00:00
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
1996-11-19 19:09:28 +00:00
|
|
|
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
|
2001-04-06 16:43:21 +00:00
|
|
|
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 max - Apr Sun>=15 2:00 0 -
|
|
|
|
Rule Falk 2001 max - Sep Sun>=1 2:00 1:00 S
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone Atlantic/Stanley -3:51:24 - LMT 1890
|
1996-11-19 19:09:28 +00:00
|
|
|
-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
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# French Guiana
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Cayenne -3:29:20 - LMT 1911 Jul
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:00 - GFT 1967 Oct # French Guiana Time
|
|
|
|
-3:00 - GFT
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# Guyana
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
|
1996-11-19 19:09:28 +00:00
|
|
|
-3:45 - GBGT 1966 May 26 # Br Guiana Time
|
|
|
|
-3:45 - GYT 1975 Jul 31 # Guyana Time
|
1996-12-02 16:59:56 +00:00
|
|
|
-3:00 - GYT 1991
|
|
|
|
# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
|
|
|
|
-4:00 - GYT
|
1994-09-13 21:50:20 +00:00
|
|
|
|
|
|
|
# Paraguay
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2000-03-29 13:31:51 +00:00
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# From Paul Eggert (1999-10-29):
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# Shanks (1999) says that spring transitions are from 01:00 -> 02:00,
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# and autumn transitions are from 00:00 -> 23:00. Go with earlier
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# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
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1994-09-13 21:50:20 +00:00
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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2000-03-29 13:31:51 +00:00
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Rule Para 1975 1988 - Oct 1 0:00 1:00 S
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1996-11-19 19:09:28 +00:00
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Rule Para 1975 1978 - Mar 1 0:00 0 -
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2000-03-29 13:31:51 +00:00
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Rule Para 1979 1991 - Apr 1 0:00 0 -
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1996-11-19 19:09:28 +00:00
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Rule Para 1989 only - Oct 22 0:00 1:00 S
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1996-12-02 16:59:56 +00:00
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Rule Para 1990 only - Oct 1 0:00 1:00 S
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Rule Para 1991 only - Oct 6 0:00 1:00 S
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Rule Para 1992 only - Mar 1 0:00 0 -
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Rule Para 1992 only - Oct 5 0:00 1:00 S
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Rule Para 1993 only - Mar 31 0:00 0 -
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1997-10-25 18:22:53 +00:00
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Rule Para 1993 1995 - Oct 1 0:00 1:00 S
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1996-12-02 16:59:56 +00:00
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Rule Para 1994 1995 - Feb lastSun 0:00 0 -
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2000-03-29 13:31:51 +00:00
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Rule Para 1996 only - Mar 1 0:00 0 -
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2001-04-06 16:43:21 +00:00
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# IATA SSIM (2000-02) says 1999-10-10; ignore this for now.
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2000-10-25 19:33:50 +00:00
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# From Steffen Thorsen (2000-10-02):
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# I have three independent reports that Paraguay changed to DST this Sunday
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# (10-01).
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2001-04-06 16:43:21 +00:00
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#
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# Translated by Gwillim Law (2001-02-27) from
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# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm">
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# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)
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# </a>:
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# Starting at 0:00 today, the clock will be set forward 60 minutes, in
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# fulfillment of Decree No. 7,273 of the Executive Power.... The time change
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# system has been operating for several years. Formerly there was a separate
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# decree each year; the new law has the same effect, but permanently. Every
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# year, the time will change on the first Sunday of October; likewise, the
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# clock will be set back on the first Sunday of March.
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#
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# From Jesper Norgaard (2001-03-06) [an official URL saying similar things]:
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# http://gateway.abc.com.py:8000/pub/pag04.mbr/artic?FHA=2001-03-03-02.24.52.900592
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#
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2002-04-04 18:11:12 +00:00
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Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S
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2001-04-06 16:43:21 +00:00
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# IATA SSIM (1997-09) says Mar 1; go with Shanks.
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Rule Para 1997 only - Feb lastSun 0:00 0 -
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# Shanks says 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
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# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
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2002-04-04 18:11:12 +00:00
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Rule Para 1998 2001 - Mar Sun>=1 0:00 0 -
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# From Rives McDow (2002-02-28):
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# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the
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# dst method to be from the first Sunday in September to the first Sunday in
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# April.
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Rule Para 2002 max - Apr Sun>=1 0:00 0 -
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Rule Para 2002 max - Sep Sun>=1 0:00 1:00 S
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2001-04-06 16:43:21 +00:00
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1994-09-13 21:50:20 +00:00
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone America/Asuncion -3:50:40 - LMT 1890
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1996-11-19 19:09:28 +00:00
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-3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
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-4:00 - PYT 1972 Oct # Paraguay Time
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-3:00 - PYT 1974 Apr
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-4:00 Para PY%sT
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1994-09-13 21:50:20 +00:00
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# Peru
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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1996-11-19 19:09:28 +00:00
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Rule Peru 1938 only - Jan 1 0:00 1:00 S
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Rule Peru 1938 only - Apr 1 0:00 0 -
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Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
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Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
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Rule Peru 1987 only - Jan 1 0:00 1:00 S
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Rule Peru 1987 only - Apr 1 0:00 0 -
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Rule Peru 1990 only - Jan 1 0:00 1:00 S
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Rule Peru 1990 only - Apr 1 0:00 0 -
|
2000-03-29 13:31:51 +00:00
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# IATA is ambiguous for 1993/1995; go with Shanks.
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Rule Peru 1994 only - Jan 1 0:00 1:00 S
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Rule Peru 1994 only - Apr 1 0:00 0 -
|
1994-09-13 21:50:20 +00:00
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone America/Lima -5:08:12 - LMT 1890
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2001-11-09 19:00:37 +00:00
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-5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
|
1996-11-19 19:09:28 +00:00
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-5:00 Peru PE%sT # Peru Time
|
1994-09-13 21:50:20 +00:00
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# South Georgia
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
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1996-11-19 19:09:28 +00:00
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-2:00 - GST # South Georgia Time
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1994-09-13 21:50:20 +00:00
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# South Sandwich Is
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2000-03-29 13:31:51 +00:00
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# uninhabited; scientific personnel have wintered
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1994-09-13 21:50:20 +00:00
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# Suriname
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone America/Paramaribo -3:40:40 - LMT 1911
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-3:40:52 - PMT 1935 # Paramaribo Mean Time
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-3:40:36 - PMT 1945 Oct # The capital moved?
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1996-11-19 19:09:28 +00:00
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-3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time
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-3:30 - SRT 1984 Oct # Suriname Time
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-3:00 - SRT
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1994-09-13 21:50:20 +00:00
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# Trinidad and Tobago
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
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-4:00 - AST
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# Uruguay
|
1996-11-19 19:09:28 +00:00
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# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
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1994-09-13 21:50:20 +00:00
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# Uruguay wins the prize for the strangest peacetime manipulation of the rules.
|
2000-03-29 13:31:51 +00:00
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|
# From Shanks:
|
1994-09-13 21:50:20 +00:00
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|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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# Whitman gives 1923 Oct 1; go with Shanks.
|
1996-11-19 19:09:28 +00:00
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Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS
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Rule Uruguay 1924 1926 - Apr 1 0:00 0 -
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Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS
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Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS
|
1994-09-13 21:50:20 +00:00
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# Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman.
|
1996-11-19 19:09:28 +00:00
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Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 -
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Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS
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Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 -
|
1994-09-13 21:50:20 +00:00
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# Whitman gives 1937 Oct 3; go with Shanks.
|
1996-11-19 19:09:28 +00:00
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Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS
|
1994-09-13 21:50:20 +00:00
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# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
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# and 1943 Apr 13 ``to present time''; go with Shanks.
|
1996-11-19 19:09:28 +00:00
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Rule Uruguay 1941 only - Aug 1 0:00 0 -
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Rule Uruguay 1942 only - Jan 1 0:00 0:30 HS
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Rule Uruguay 1942 only - Dec 14 0:00 1:00 S
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Rule Uruguay 1943 only - Mar 14 0:00 0 -
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Rule Uruguay 1959 only - May 24 0:00 1:00 S
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Rule Uruguay 1959 only - Nov 15 0:00 0 -
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Rule Uruguay 1960 only - Jan 17 0:00 1:00 S
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Rule Uruguay 1960 only - Mar 6 0:00 0 -
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Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S
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Rule Uruguay 1965 only - Sep 26 0:00 0 -
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Rule Uruguay 1966 1967 - Oct 31 0:00 0 -
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Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS
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Rule Uruguay 1968 1970 - Dec 2 0:00 0 -
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Rule Uruguay 1972 only - Apr 24 0:00 1:00 S
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Rule Uruguay 1972 only - Aug 15 0:00 0 -
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Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS
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Rule Uruguay 1974 only - Dec 22 0:00 1:00 S
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Rule Uruguay 1976 only - Oct 1 0:00 0 -
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Rule Uruguay 1977 only - Dec 4 0:00 1:00 S
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Rule Uruguay 1978 only - Apr 1 0:00 0 -
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Rule Uruguay 1979 only - Oct 1 0:00 1:00 S
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Rule Uruguay 1980 only - May 1 0:00 0 -
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Rule Uruguay 1987 only - Dec 14 0:00 1:00 S
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Rule Uruguay 1988 only - Mar 14 0:00 0 -
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Rule Uruguay 1988 only - Dec 11 0:00 1:00 S
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Rule Uruguay 1989 only - Mar 12 0:00 0 -
|
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Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
|
2000-03-29 13:31:51 +00:00
|
|
|
# Shanks says 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.
|
1996-12-02 16:59:56 +00:00
|
|
|
Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
|
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|
Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
|
1997-10-25 18:22:53 +00:00
|
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|
Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
|
1996-12-02 16:59:56 +00:00
|
|
|
Rule Uruguay 1993 only - Feb 28 0:00 0 -
|
1994-09-13 21:50:20 +00:00
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
|
|
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
|
1996-11-19 19:09:28 +00:00
|
|
|
-3:44:44 - MMT 1920 May 1 # Montevideo MT
|
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|
-3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
|
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|
-3:00 Uruguay UY%sT
|
1994-09-13 21:50:20 +00:00
|
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|
# Venezuela
|
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
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|
Zone America/Caracas -4:27:44 - LMT 1890
|
2001-11-09 19:00:37 +00:00
|
|
|
-4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
|
1996-11-19 19:09:28 +00:00
|
|
|
-4:30 - VET 1965 # Venezuela Time
|
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|
|
-4:00 - VET
|