1# @(#)southamerica 8.26
| 1# @(#)southamerica 8.27
|
2# <pre>
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (2006-03-22):
9# A good source for time zone historical data outside the U.S. is
10# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
11# San Diego: ACS Publications, Inc. (2003).
12#
13# Gwillim Law writes that a good source
14# for recent time zone data is the International Air Transport
15# Association's Standard Schedules Information Manual (IATA SSIM),
16# published semiannually. Law sent in several helpful summaries
17# of the IATA's data after 1990.
18#
19# Except where otherwise noted, Shanks & Pottenger is the source for
20# entries through 1990, and IATA SSIM is the source for entries afterwards.
21#
22# Earlier editions of these tables used the North American style (e.g. ARST and
23# ARDT for Argentine Standard and Daylight Time), but the following quote
24# suggests that it's better to use European style (e.g. ART and ARST).
25# I suggest the use of _Summer time_ instead of the more cumbersome
26# _daylight-saving time_. _Summer time_ seems to be in general use
27# in Europe and South America.
28# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
29# H L Mencken, _The American Language: Supplement I_ (1960), p 466
30#
31# Earlier editions of these tables also used the North American style
32# for time zones in Brazil, but this was incorrect, as Brazilians say
33# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in
34# the railroad sector, writes (1999-07-06):
35# The subject of time zones is currently a matter of discussion/debate in
36# Brazil. Let's say that "the Brasilia time" is considered the
37# "official time" because Brasilia is the capital city.
38# The other three time zones are called "Brasilia time "minus one" or
39# "plus one" or "plus two". As far as I know there is no such
40# name/designation as "Eastern Time" or "Central Time".
41# So I invented the following (English-language) abbreviations for now.
42# Corrections are welcome!
43# std dst
44# -2:00 FNT FNST Fernando de Noronha
45# -3:00 BRT BRST Brasilia
46# -4:00 AMT AMST Amazon
47# -5:00 ACT ACST Acre
48
49###############################################################################
50
51###############################################################################
52
53# Argentina
54
55# From Bob Devine (1988-01-28):
56# Argentina: first Sunday in October to first Sunday in April since 1976.
57# Double Summer time from 1969 to 1974. Switches at midnight.
58
59# From U. S. Naval Observatory (1988-01-199):
60# ARGENTINA 3 H BEHIND UTC
61
62# From Hernan G. Otero (1995-06-26):
63# I am sending modifications to the Argentine time zone table...
64# AR was chosen because they are the ISO letters that represent Argentina.
65
66# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
67Rule Arg 1930 only - Dec 1 0:00 1:00 S
68Rule Arg 1931 only - Apr 1 0:00 0 -
69Rule Arg 1931 only - Oct 15 0:00 1:00 S
70Rule Arg 1932 1940 - Mar 1 0:00 0 -
71Rule Arg 1932 1939 - Nov 1 0:00 1:00 S
72Rule Arg 1940 only - Jul 1 0:00 1:00 S
73Rule Arg 1941 only - Jun 15 0:00 0 -
74Rule Arg 1941 only - Oct 15 0:00 1:00 S
75Rule Arg 1943 only - Aug 1 0:00 0 -
76Rule Arg 1943 only - Oct 15 0:00 1:00 S
77Rule Arg 1946 only - Mar 1 0:00 0 -
78Rule Arg 1946 only - Oct 1 0:00 1:00 S
79Rule Arg 1963 only - Oct 1 0:00 0 -
80Rule Arg 1963 only - Dec 15 0:00 1:00 S
81Rule Arg 1964 1966 - Mar 1 0:00 0 -
82Rule Arg 1964 1966 - Oct 15 0:00 1:00 S
83Rule Arg 1967 only - Apr 2 0:00 0 -
84Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
85Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
86Rule Arg 1974 only - Jan 23 0:00 1:00 S
87Rule Arg 1974 only - May 1 0:00 0 -
88Rule Arg 1988 only - Dec 1 0:00 1:00 S
89#
90# From Hernan G. Otero (1995-06-26):
91# These corrections were contributed by InterSoft Argentina S.A.,
92# obtaining the data from the:
93# Talleres de Hidrografia Naval Argentina
94# (Argentine Naval Hydrography Institute)
95Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
96Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
97#
98# From Hernan G. Otero (1995-06-26):
99# From this moment on, the law that mandated the daylight saving
100# time corrections was derogated and no more modifications
101# to the time zones (for daylight saving) are now made.
102#
103# From Rives McDow (2000-01-10):
104# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
105# which did not result in the switch of a time zone, as they stayed 9 hours
106# from the International Date Line.
107Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S
108# From Paul Eggert (2007-12-28):
109# DST was set to expire on March 5, not March 3, but since it was converted
110# to standard time on March 3 it's more convenient for us to pretend that
111# it ended on March 3.
112Rule Arg 2000 only - Mar 3 0:00 0 -
113#
114# From Peter Gradelski via Steffen Thorsen (2000-03-01):
115# We just checked with our Sao Paulo office and they say the government of
116# Argentina decided not to become one of the countries that go on or off DST.
117# So Buenos Aires should be -3 hours from GMT at all times.
118#
119# From Fabian L. Arce Jofre (2000-04-04):
120# The law that claimed DST for Argentina was derogated by President Fernando
121# de la Rua on March 2, 2000, because it would make people spend more energy
122# in the winter time, rather than less. The change took effect on March 3.
123#
124# From Mariano Absatz (2001-06-06):
125# one of the major newspapers here in Argentina said that the 1999
126# Timezone Law (which never was effectively applied) will (would?) be
127# in effect.... The article is at
128# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
129# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
130# 1999-09-17, and published 1999-09-21. The official publication is at:
131# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
132# Regretfully, you have to subscribe (and pay) for the on-line version....
133#
134# (2001-06-12):
135# the timezone for Argentina will not change next Sunday.
136# Apparently it will do so on Sunday 24th....
137# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
138#
139# (2001-06-25):
140# Last Friday (yes, the last working day before the date of the change), the
141# Senate annulled the 1999 law that introduced the changes later postponed.
142# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
143# It remains the vote of the Deputies..., but it will be the same....
144# This kind of things had always been done this way in Argentina.
145# We are still -03:00 all year round in all of the country.
146#
147# From Steffen Thorsen (2007-12-21):
148# A user (Leonardo Chaim) reported that Argentina will adopt DST....
149# all of the country (all Zone-entries) are affected. News reports like
150# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
151# that Argentina will use DST next year as well, from October to
152# March, although exact rules are not given.
153#
154# From Jesper Norgaard Welen (2007-12-26)
155# The last hurdle of Argentina DST is over, the proposal was approved in
156# the lower chamber too (Deputados) with a vote 192 for and 2 against.
157# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
158# the original scanned proposal, where the dates and the zero hours are
159# clear and unambiguous...This is the article about final approval:
160# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
161# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
162# </a>
163#
164# From Paul Eggert (2007-12-22):
165# For dates after mid-2008, the following rules are my guesses and
166# are quite possibly wrong, but are more likely than no DST at all.
| 2# <pre>
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (2006-03-22):
9# A good source for time zone historical data outside the U.S. is
10# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
11# San Diego: ACS Publications, Inc. (2003).
12#
13# Gwillim Law writes that a good source
14# for recent time zone data is the International Air Transport
15# Association's Standard Schedules Information Manual (IATA SSIM),
16# published semiannually. Law sent in several helpful summaries
17# of the IATA's data after 1990.
18#
19# Except where otherwise noted, Shanks & Pottenger is the source for
20# entries through 1990, and IATA SSIM is the source for entries afterwards.
21#
22# Earlier editions of these tables used the North American style (e.g. ARST and
23# ARDT for Argentine Standard and Daylight Time), but the following quote
24# suggests that it's better to use European style (e.g. ART and ARST).
25# I suggest the use of _Summer time_ instead of the more cumbersome
26# _daylight-saving time_. _Summer time_ seems to be in general use
27# in Europe and South America.
28# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
29# H L Mencken, _The American Language: Supplement I_ (1960), p 466
30#
31# Earlier editions of these tables also used the North American style
32# for time zones in Brazil, but this was incorrect, as Brazilians say
33# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in
34# the railroad sector, writes (1999-07-06):
35# The subject of time zones is currently a matter of discussion/debate in
36# Brazil. Let's say that "the Brasilia time" is considered the
37# "official time" because Brasilia is the capital city.
38# The other three time zones are called "Brasilia time "minus one" or
39# "plus one" or "plus two". As far as I know there is no such
40# name/designation as "Eastern Time" or "Central Time".
41# So I invented the following (English-language) abbreviations for now.
42# Corrections are welcome!
43# std dst
44# -2:00 FNT FNST Fernando de Noronha
45# -3:00 BRT BRST Brasilia
46# -4:00 AMT AMST Amazon
47# -5:00 ACT ACST Acre
48
49###############################################################################
50
51###############################################################################
52
53# Argentina
54
55# From Bob Devine (1988-01-28):
56# Argentina: first Sunday in October to first Sunday in April since 1976.
57# Double Summer time from 1969 to 1974. Switches at midnight.
58
59# From U. S. Naval Observatory (1988-01-199):
60# ARGENTINA 3 H BEHIND UTC
61
62# From Hernan G. Otero (1995-06-26):
63# I am sending modifications to the Argentine time zone table...
64# AR was chosen because they are the ISO letters that represent Argentina.
65
66# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
67Rule Arg 1930 only - Dec 1 0:00 1:00 S
68Rule Arg 1931 only - Apr 1 0:00 0 -
69Rule Arg 1931 only - Oct 15 0:00 1:00 S
70Rule Arg 1932 1940 - Mar 1 0:00 0 -
71Rule Arg 1932 1939 - Nov 1 0:00 1:00 S
72Rule Arg 1940 only - Jul 1 0:00 1:00 S
73Rule Arg 1941 only - Jun 15 0:00 0 -
74Rule Arg 1941 only - Oct 15 0:00 1:00 S
75Rule Arg 1943 only - Aug 1 0:00 0 -
76Rule Arg 1943 only - Oct 15 0:00 1:00 S
77Rule Arg 1946 only - Mar 1 0:00 0 -
78Rule Arg 1946 only - Oct 1 0:00 1:00 S
79Rule Arg 1963 only - Oct 1 0:00 0 -
80Rule Arg 1963 only - Dec 15 0:00 1:00 S
81Rule Arg 1964 1966 - Mar 1 0:00 0 -
82Rule Arg 1964 1966 - Oct 15 0:00 1:00 S
83Rule Arg 1967 only - Apr 2 0:00 0 -
84Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
85Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
86Rule Arg 1974 only - Jan 23 0:00 1:00 S
87Rule Arg 1974 only - May 1 0:00 0 -
88Rule Arg 1988 only - Dec 1 0:00 1:00 S
89#
90# From Hernan G. Otero (1995-06-26):
91# These corrections were contributed by InterSoft Argentina S.A.,
92# obtaining the data from the:
93# Talleres de Hidrografia Naval Argentina
94# (Argentine Naval Hydrography Institute)
95Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
96Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
97#
98# From Hernan G. Otero (1995-06-26):
99# From this moment on, the law that mandated the daylight saving
100# time corrections was derogated and no more modifications
101# to the time zones (for daylight saving) are now made.
102#
103# From Rives McDow (2000-01-10):
104# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
105# which did not result in the switch of a time zone, as they stayed 9 hours
106# from the International Date Line.
107Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S
108# From Paul Eggert (2007-12-28):
109# DST was set to expire on March 5, not March 3, but since it was converted
110# to standard time on March 3 it's more convenient for us to pretend that
111# it ended on March 3.
112Rule Arg 2000 only - Mar 3 0:00 0 -
113#
114# From Peter Gradelski via Steffen Thorsen (2000-03-01):
115# We just checked with our Sao Paulo office and they say the government of
116# Argentina decided not to become one of the countries that go on or off DST.
117# So Buenos Aires should be -3 hours from GMT at all times.
118#
119# From Fabian L. Arce Jofre (2000-04-04):
120# The law that claimed DST for Argentina was derogated by President Fernando
121# de la Rua on March 2, 2000, because it would make people spend more energy
122# in the winter time, rather than less. The change took effect on March 3.
123#
124# From Mariano Absatz (2001-06-06):
125# one of the major newspapers here in Argentina said that the 1999
126# Timezone Law (which never was effectively applied) will (would?) be
127# in effect.... The article is at
128# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
129# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
130# 1999-09-17, and published 1999-09-21. The official publication is at:
131# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
132# Regretfully, you have to subscribe (and pay) for the on-line version....
133#
134# (2001-06-12):
135# the timezone for Argentina will not change next Sunday.
136# Apparently it will do so on Sunday 24th....
137# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
138#
139# (2001-06-25):
140# Last Friday (yes, the last working day before the date of the change), the
141# Senate annulled the 1999 law that introduced the changes later postponed.
142# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
143# It remains the vote of the Deputies..., but it will be the same....
144# This kind of things had always been done this way in Argentina.
145# We are still -03:00 all year round in all of the country.
146#
147# From Steffen Thorsen (2007-12-21):
148# A user (Leonardo Chaim) reported that Argentina will adopt DST....
149# all of the country (all Zone-entries) are affected. News reports like
150# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
151# that Argentina will use DST next year as well, from October to
152# March, although exact rules are not given.
153#
154# From Jesper Norgaard Welen (2007-12-26)
155# The last hurdle of Argentina DST is over, the proposal was approved in
156# the lower chamber too (Deputados) with a vote 192 for and 2 against.
157# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
158# the original scanned proposal, where the dates and the zero hours are
159# clear and unambiguous...This is the article about final approval:
160# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
161# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
162# </a>
163#
164# From Paul Eggert (2007-12-22):
165# For dates after mid-2008, the following rules are my guesses and
166# are quite possibly wrong, but are more likely than no DST at all.
|
| 167
168# From Alexander Krivenyshev (2008-09-05):
169# As per message from Carlos Alberto Fonseca Arauz (Nicaragua),
170# Argentina will start DST on Sunday October 19, 2008.
171#
172# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html">
173# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html
174# </a>
175# OR
176# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)">
177# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)
178# </a>
179
|
167Rule Arg 2007 only - Dec 30 0:00 1:00 S
168Rule Arg 2008 max - Mar Sun>=15 0:00 0 -
| 180Rule Arg 2007 only - Dec 30 0:00 1:00 S
181Rule Arg 2008 max - Mar Sun>=15 0:00 0 -
|
169Rule Arg 2008 max - Oct Sun>=1 0:00 1:00 S
| 182Rule Arg 2008 max - Oct Sun>=15 0:00 1:00 S
|
170
171# From Mariano Absatz (2004-05-21):
172# Today it was officially published that the Province of Mendoza is changing
173# its timezone this winter... starting tomorrow night....
174# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
175# From Paul Eggert (2004-05-24):
176# It's Law No. 7,210. This change is due to a public power emergency, so for
177# now we'll assume it's for this year only.
178#
179# From Paul Eggert (2006-03-22):
180# <a href="http://www.spicasc.net/horvera.html">
181# Hora de verano para la Republica Argentina (2003-06-08)
182# </a> says that standard time in Argentina from 1894-10-31
183# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
184# over Shanks & Pottenger.
185#
186# From Mariano Absatz (2004-06-05):
187# These media articles from a major newspaper mostly cover the current state:
188# http://www.lanacion.com.ar/04/05/27/de_604825.asp
189# http://www.lanacion.com.ar/04/05/28/de_605203.asp
190#
191# The following eight (8) provinces pulled clocks back to UTC-04:00 at
192# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
193# Apparently, all nine provinces would go back to UTC-03:00 at the same
194# time in October 17th.
195#
196# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
197# Tierra del Fuego, Tucuman.
198#
199# From Mariano Absatz (2004-06-14):
200# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
201# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
202# annoyance with the change is much higher than the power savings obtained....
203#
204# From Gwillim Law (2004-06-14):
205# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
206# "The time change in Tierra del Fuego was a conflicted decision from
207# the start. The government had decreed that the measure would take
208# effect on June 1, but a normative error forced the new time to begin
209# three days earlier, from a Saturday to a Sunday....
210# Our understanding was that the change was originally scheduled to take place
211# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
212# provinces). Sunday was May 30, only two days earlier. So the article
213# contains a contradiction. I would give more credence to the Saturday/Sunday
214# date than the "three days earlier" phrase, and conclude that Tierra del
215# Fuego set its clocks back at 2004-05-30 00:00.
216#
217# From Steffen Thorsen (2004-10-05):
218# The previous law 7210 which changed the province of Mendoza's time zone
219# back in May have been modified slightly in a new law 7277, which set the
220# new end date to 2004-09-26 (original date was 2004-10-17).
221# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
222#
223# From Mariano Absatz (2004-10-05):
224# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
225# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
226# at midnight between Saturday, July 24th and Sunday, July 25th....
227# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
228# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
229# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
230
231# From Alex Krivenyshev (2008-01-17):
232# Here are articles that Argentina Province San Luis is planning to end DST
233# as earlier as upcoming Monday January 21, 2008 or February 2008:
234#
235# Provincia argentina retrasa reloj y marca diferencia con resto del pais
236# (Argentine Province delayed clock and mark difference with the rest of the
237# country)
238# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
239# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
240# </a>
241#
242# Es inminente que en San Luis atrasen una hora los relojes
243# (It is imminent in San Luis clocks one hour delay)
244# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
245# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
246# </a>
247#
248# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
249# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
250# </a>
251
252# From Jesper Norgaard Welen (2008-01-18):
253# The page of the San Luis provincial government
254# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
255# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
256# </a>
257# confirms what Alex Krivenyshev has earlier sent to the tz
258# emailing list about that San Luis plans to return to standard
259# time much earlier than the rest of the country. It also
260# confirms that upon request the provinces San Juan and Mendoza
261# refused to follow San Luis in this change.
262#
263# The change is supposed to take place Monday the 21.st at 0:00
264# hours. As far as I understand it if this goes ahead, we need
265# a new timezone for San Luis (although there are also documented
266# independent changes in the southamerica file of San Luis in
267# 1990 and 1991 which has not been confirmed).
268
269# From Jesper Norgaard Welen (2008-01-25):
270# Unfortunately the below page has become defunct, about the San Luis
271# time change. Perhaps because it now is part of a group of pages "Most
272# important pages of 2008."
273#
274# You can use
275# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
276# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
277# </a>
278# instead it seems. Or use "Buscador" from the main page of the San Luis
279# government, and fill in "huso" and click OK, and you will get 3 pages
280# from which the first one is identical to the above.
281
282# From Mariano Absatz (2008-01-28):
283# I can confirm that the Province of San Luis (and so far only that
284# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
285# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
286# 1 hour), and they intend to keep UTC-3 as their timezone all year round
287# (that is, unless they change their mind any minute now).
288#
289# So we'll have to add yet another city to 'southamerica' (I think San
290# Luis city is the mos populated city in the Province, so it'd be
291# America/Argentina/San_Luis... of course I can't remember if San Luis's
292# history of particular changes goes along with Mendoza or San Juan :-(
293# (I only remember not being able to collect hard facts about San Luis
294# back in 2004, when these provinces changed to UTC-4 for a few days, I
295# mailed them personally and never got an answer).
296
297# From Paul Eggert (2008-06-30):
298# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
299# from the IATA otherwise. As noted below, Shanks & Pottenger say that
300# America/Cordoba split into 6 subregions during 1991/1992, one of which
301# was America/San_Luis, but we haven't verified this yet so for now we'll
302# keep America/Cordoba a single region rather than splitting it into the
303# other 5 subregions.
304
305#
306# Zone NAME GMTOFF RULES FORMAT [UNTIL]
307#
308# Buenos Aires (BA), Capital Federal (CF),
309Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
310 -4:16:48 - CMT 1920 May # Cordoba Mean Time
311 -4:00 - ART 1930 Dec
312 -4:00 Arg AR%sT 1969 Oct 5
313 -3:00 Arg AR%sT 1999 Oct 3
314 -4:00 Arg AR%sT 2000 Mar 3
315 -3:00 Arg AR%sT
316#
317# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
318# Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
319# La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
320#
321# Shanks & Pottenger also make the following claims, which we haven't verified:
322# - Formosa switched to -3:00 on 1991-01-07.
323# - Misiones switched to -3:00 on 1990-12-29.
324# - Chaco switched to -3:00 on 1991-01-04.
325# - Santiago del Estero switched to -4:00 on 1991-04-01,
326# then to -3:00 on 1991-04-26.
327#
328Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
329 -4:16:48 - CMT 1920 May
330 -4:00 - ART 1930 Dec
331 -4:00 Arg AR%sT 1969 Oct 5
332 -3:00 Arg AR%sT 1991 Mar 3
333 -4:00 - WART 1991 Oct 20
334 -3:00 Arg AR%sT 1999 Oct 3
335 -4:00 Arg AR%sT 2000 Mar 3
336 -3:00 Arg AR%sT
337#
338# Tucuman (TM)
339Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
340 -4:16:48 - CMT 1920 May
341 -4:00 - ART 1930 Dec
342 -4:00 Arg AR%sT 1969 Oct 5
343 -3:00 Arg AR%sT 1991 Mar 3
344 -4:00 - WART 1991 Oct 20
345 -3:00 Arg AR%sT 1999 Oct 3
346 -4:00 Arg AR%sT 2000 Mar 3
347 -3:00 - ART 2004 Jun 1
348 -4:00 - WART 2004 Jun 13
349 -3:00 Arg AR%sT
350#
351# La Rioja (LR)
352Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
353 -4:16:48 - CMT 1920 May
354 -4:00 - ART 1930 Dec
355 -4:00 Arg AR%sT 1969 Oct 5
356 -3:00 Arg AR%sT 1991 Mar 1
357 -4:00 - WART 1991 May 7
358 -3:00 Arg AR%sT 1999 Oct 3
359 -4:00 Arg AR%sT 2000 Mar 3
360 -3:00 - ART 2004 Jun 1
361 -4:00 - WART 2004 Jun 20
362 -3:00 Arg AR%sT
363#
364# San Juan (SJ)
365Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
366 -4:16:48 - CMT 1920 May
367 -4:00 - ART 1930 Dec
368 -4:00 Arg AR%sT 1969 Oct 5
369 -3:00 Arg AR%sT 1991 Mar 1
370 -4:00 - WART 1991 May 7
371 -3:00 Arg AR%sT 1999 Oct 3
372 -4:00 Arg AR%sT 2000 Mar 3
373 -3:00 - ART 2004 May 31
374 -4:00 - WART 2004 Jul 25
375 -3:00 Arg AR%sT
376#
377# Jujuy (JY)
378Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
379 -4:16:48 - CMT 1920 May
380 -4:00 - ART 1930 Dec
381 -4:00 Arg AR%sT 1969 Oct 5
382 -3:00 Arg AR%sT 1990 Mar 4
383 -4:00 - WART 1990 Oct 28
384 -4:00 1:00 WARST 1991 Mar 17
385 -4:00 - WART 1991 Oct 6
386 -3:00 1:00 ARST 1992
387 -3:00 Arg AR%sT 1999 Oct 3
388 -4:00 Arg AR%sT 2000 Mar 3
389 -3:00 Arg AR%sT
390#
391# Catamarca (CT), Chubut (CH)
392Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
393 -4:16:48 - CMT 1920 May
394 -4:00 - ART 1930 Dec
395 -4:00 Arg AR%sT 1969 Oct 5
396 -3:00 Arg AR%sT 1991 Mar 3
397 -4:00 - WART 1991 Oct 20
398 -3:00 Arg AR%sT 1999 Oct 3
399 -4:00 Arg AR%sT 2000 Mar 3
400 -3:00 - ART 2004 Jun 1
401 -4:00 - WART 2004 Jun 20
402 -3:00 Arg AR%sT
403#
404# Mendoza (MZ)
405Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
406 -4:16:48 - CMT 1920 May
407 -4:00 - ART 1930 Dec
408 -4:00 Arg AR%sT 1969 Oct 5
409 -3:00 Arg AR%sT 1990 Mar 4
410 -4:00 - WART 1990 Oct 15
411 -4:00 1:00 WARST 1991 Mar 1
412 -4:00 - WART 1991 Oct 15
413 -4:00 1:00 WARST 1992 Mar 1
414 -4:00 - WART 1992 Oct 18
415 -3:00 Arg AR%sT 1999 Oct 3
416 -4:00 Arg AR%sT 2000 Mar 3
417 -3:00 - ART 2004 May 23
418 -4:00 - WART 2004 Sep 26
419 -3:00 Arg AR%sT
420#
421# San Luis (SL)
422Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
423 -4:16:48 - CMT 1920 May
424 -4:00 - ART 1930 Dec
425 -4:00 Arg AR%sT 1969 Oct 5
426 -3:00 Arg AR%sT 1990
427 -3:00 1:00 ARST 1990 Mar 14
428 -4:00 - WART 1990 Oct 15
429 -4:00 1:00 WARST 1991 Mar 1
430 -4:00 - WART 1991 Jun 1
431 -3:00 - ART 1999 Oct 3
432 -4:00 1:00 WARST 2000 Mar 3
433 -3:00 - ART 2004 May 31
434 -4:00 - WART 2004 Jul 25
435 -3:00 Arg AR%sT 2008 Jan 21
436 -3:00 - ART
437#
438# Santa Cruz (SC)
439Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
440 -4:16:48 - CMT 1920 May # Cordoba Mean Time
441 -4:00 - ART 1930 Dec
442 -4:00 Arg AR%sT 1969 Oct 5
443 -3:00 Arg AR%sT 1999 Oct 3
444 -4:00 Arg AR%sT 2000 Mar 3
445 -3:00 - ART 2004 Jun 1
446 -4:00 - WART 2004 Jun 20
447 -3:00 Arg AR%sT
448#
449# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
450Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
451 -4:16:48 - CMT 1920 May # Cordoba Mean Time
452 -4:00 - ART 1930 Dec
453 -4:00 Arg AR%sT 1969 Oct 5
454 -3:00 Arg AR%sT 1999 Oct 3
455 -4:00 Arg AR%sT 2000 Mar 3
456 -3:00 - ART 2004 May 30
457 -4:00 - WART 2004 Jun 20
458 -3:00 Arg AR%sT
459
460# Aruba
461# Zone NAME GMTOFF RULES FORMAT [UNTIL]
462Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
463 -4:30 - ANT 1965 # Netherlands Antilles Time
464 -4:00 - AST
465
466# Bolivia
467# Zone NAME GMTOFF RULES FORMAT [UNTIL]
468Zone America/La_Paz -4:32:36 - LMT 1890
469 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT
470 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
471 -4:00 - BOT # Bolivia Time
472
473# Brazil
474
475# From Paul Eggert (1993-11-18):
476# The mayor of Rio recently attempted to change the time zone rules
477# just in his city, in order to leave more summer time for the tourist trade.
478# The rule change lasted only part of the day;
479# the federal government refused to follow the city's rules, and business
480# was in a chaos, so the mayor backed down that afternoon.
481
482# From IATA SSIM (1996-02):
483# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),
484# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),
485# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),
486# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].
487# [The last three states are new to this issue of the IATA SSIM.]
488
489# From Gwillim Law (1996-10-07):
490# Geography, history (Tocantins was part of Goias until 1989), and other
491# sources of time zone information lead me to believe that AL, SE, and TO were
492# always in BR1, and so the only change was whether or not they observed DST....
493# The earliest issue of the SSIM I have is 2/91. Each issue from then until
494# 9/95 says that DST is observed only in the ten states I quoted from 9/95,
495# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2
496# (UTC-4).... The other two time zones given for Brazil are BR3, which is
497# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is
498# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's
499# become part of the state of Pernambuco). The boundary between BR1 and BR2
500# has never been clearly stated. They've simply been called East and West.
501# However, some conclusions can be drawn from another IATA manual: the Airline
502# Coding Directory, which lists close to 400 airports in Brazil. For each
503# airport it gives a time zone which is coded to the SSIM. From that
504# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),
505# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do
506# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.
507
508# From Marcos Tadeu (1998-09-27):
509# <a href="http://pcdsh01.on.br/verao1.html">
510# Brazilian official page
511# </a>
512
513# From Jesper Norgaard (2000-11-03):
514# [For an official list of which regions in Brazil use which time zones, see:]
515# http://pcdsh01.on.br/Fusbr.htm
516# http://pcdsh01.on.br/Fusbrhv.htm
517
518# From Celso Doria via David Madeo (2002-10-09):
519# The reason for the delay this year has to do with elections in Brazil.
520#
521# Unlike in the United States, elections in Brazil are 100% computerized and
522# the results are known almost immediately. Yesterday, it was the first
523# round of the elections when 115 million Brazilians voted for President,
524# Governor, Senators, Federal Deputies, and State Deputies. Nobody is
525# counting (or re-counting) votes anymore and we know there will be a second
526# round for the Presidency and also for some Governors. The 2nd round will
527# take place on October 27th.
528#
529# The reason why the DST will only begin November 3rd is that the thousands
530# of electoral machines used cannot have their time changed, and since the
531# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
532# the Government decided to postpone DST, instead of changing the Constitution
533# (maybe, for the next elections, it will be possible to change the clock)...
534
535# From Rodrigo Severo (2004-10-04):
536# It's just the biannual change made necessary by the much hyped, supposedly
537# modern Brazilian eletronic voting machines which, apparently, can't deal
538# with a time change between the first and the second rounds of the elections.
539
540# From Steffen Thorsen (2007-09-20):
541# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:
542# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
543
544# From Paul Schulze (2008-06-24):
545# ...by law number 11.662 of April 24, 2008 (published in the "Diario
546# Oficial da Uniao"...) in Brazil there are changes in the timezones,
547# effective today (00:00am at June 24, 2008) as follows:
548#
549# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the
550# part of the Amazonas state that had this timezone now being put to the
551# timezone UTC+4
552# b) The whole Para state now is put at timezone UTC+3, instead of just
553# part of it, as was before.
554#
555# This change follows a proposal of senator Tiao Viana of Acre state, that
556# proposed it due to concerns about open television channels displaying
557# programs inappropriate to youths in the states that had the timezone
558# UTC+5 too early in the night. In the occasion, some more corrections
559# were proposed, trying to unify the timezones of any given state. This
560# change modifies timezone rules defined in decree 2.784 of 18 June,
561# 1913.
562
563# From Rodrigo Severo (2008-06-24):
564# Just correcting the URL:
565# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=3Ddo&secao=3D1&pagina=3D1&data=3D25/04/2008">
566# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=3Ddo&secao=3D1&pagina=3D1&data=3D25/04/2008
567# </a>
568#
569# As a result of the above Decree I believe the America/Rio_Branco
570# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall
571# be created to represent the the west side of the Para State. I
572# suggest this new timezone be called Santarem as the most
573# important/populated city in the affected area.
574#
575# This new timezone would be the same as the Rio_Branco timezone up to
576# the 2008/06/24 change which would be to UTC-3 instead of UTC-4.
577
578# From Alex Krivenyshev (2008-06-24):
579# This is a quick reference page for New and Old Brazil Time Zones map.
580# <a href="http://www.worldtimezone.com/brazil-time-new-old.php">
581# http://www.worldtimezone.com/brazil-time-new-old.php
582# </a>
583#
584# - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05
585# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western
586# part of Par state is moving to one timezone UTC- 03 (from UTC -04).
587
588# From Paul Eggert (2002-10-10):
589# The official decrees referenced below are mostly taken from
590# <a href="http://pcdsh01.on.br/DecHV.html">
591# Decretos sobre o Horario de Verao no Brasil
592# </a>.
593
| 183
184# From Mariano Absatz (2004-05-21):
185# Today it was officially published that the Province of Mendoza is changing
186# its timezone this winter... starting tomorrow night....
187# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
188# From Paul Eggert (2004-05-24):
189# It's Law No. 7,210. This change is due to a public power emergency, so for
190# now we'll assume it's for this year only.
191#
192# From Paul Eggert (2006-03-22):
193# <a href="http://www.spicasc.net/horvera.html">
194# Hora de verano para la Republica Argentina (2003-06-08)
195# </a> says that standard time in Argentina from 1894-10-31
196# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
197# over Shanks & Pottenger.
198#
199# From Mariano Absatz (2004-06-05):
200# These media articles from a major newspaper mostly cover the current state:
201# http://www.lanacion.com.ar/04/05/27/de_604825.asp
202# http://www.lanacion.com.ar/04/05/28/de_605203.asp
203#
204# The following eight (8) provinces pulled clocks back to UTC-04:00 at
205# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
206# Apparently, all nine provinces would go back to UTC-03:00 at the same
207# time in October 17th.
208#
209# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
210# Tierra del Fuego, Tucuman.
211#
212# From Mariano Absatz (2004-06-14):
213# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
214# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
215# annoyance with the change is much higher than the power savings obtained....
216#
217# From Gwillim Law (2004-06-14):
218# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
219# "The time change in Tierra del Fuego was a conflicted decision from
220# the start. The government had decreed that the measure would take
221# effect on June 1, but a normative error forced the new time to begin
222# three days earlier, from a Saturday to a Sunday....
223# Our understanding was that the change was originally scheduled to take place
224# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
225# provinces). Sunday was May 30, only two days earlier. So the article
226# contains a contradiction. I would give more credence to the Saturday/Sunday
227# date than the "three days earlier" phrase, and conclude that Tierra del
228# Fuego set its clocks back at 2004-05-30 00:00.
229#
230# From Steffen Thorsen (2004-10-05):
231# The previous law 7210 which changed the province of Mendoza's time zone
232# back in May have been modified slightly in a new law 7277, which set the
233# new end date to 2004-09-26 (original date was 2004-10-17).
234# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
235#
236# From Mariano Absatz (2004-10-05):
237# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
238# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
239# at midnight between Saturday, July 24th and Sunday, July 25th....
240# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
241# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
242# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
243
244# From Alex Krivenyshev (2008-01-17):
245# Here are articles that Argentina Province San Luis is planning to end DST
246# as earlier as upcoming Monday January 21, 2008 or February 2008:
247#
248# Provincia argentina retrasa reloj y marca diferencia con resto del pais
249# (Argentine Province delayed clock and mark difference with the rest of the
250# country)
251# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
252# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
253# </a>
254#
255# Es inminente que en San Luis atrasen una hora los relojes
256# (It is imminent in San Luis clocks one hour delay)
257# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
258# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
259# </a>
260#
261# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
262# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
263# </a>
264
265# From Jesper Norgaard Welen (2008-01-18):
266# The page of the San Luis provincial government
267# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
268# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
269# </a>
270# confirms what Alex Krivenyshev has earlier sent to the tz
271# emailing list about that San Luis plans to return to standard
272# time much earlier than the rest of the country. It also
273# confirms that upon request the provinces San Juan and Mendoza
274# refused to follow San Luis in this change.
275#
276# The change is supposed to take place Monday the 21.st at 0:00
277# hours. As far as I understand it if this goes ahead, we need
278# a new timezone for San Luis (although there are also documented
279# independent changes in the southamerica file of San Luis in
280# 1990 and 1991 which has not been confirmed).
281
282# From Jesper Norgaard Welen (2008-01-25):
283# Unfortunately the below page has become defunct, about the San Luis
284# time change. Perhaps because it now is part of a group of pages "Most
285# important pages of 2008."
286#
287# You can use
288# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
289# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
290# </a>
291# instead it seems. Or use "Buscador" from the main page of the San Luis
292# government, and fill in "huso" and click OK, and you will get 3 pages
293# from which the first one is identical to the above.
294
295# From Mariano Absatz (2008-01-28):
296# I can confirm that the Province of San Luis (and so far only that
297# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
298# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
299# 1 hour), and they intend to keep UTC-3 as their timezone all year round
300# (that is, unless they change their mind any minute now).
301#
302# So we'll have to add yet another city to 'southamerica' (I think San
303# Luis city is the mos populated city in the Province, so it'd be
304# America/Argentina/San_Luis... of course I can't remember if San Luis's
305# history of particular changes goes along with Mendoza or San Juan :-(
306# (I only remember not being able to collect hard facts about San Luis
307# back in 2004, when these provinces changed to UTC-4 for a few days, I
308# mailed them personally and never got an answer).
309
310# From Paul Eggert (2008-06-30):
311# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
312# from the IATA otherwise. As noted below, Shanks & Pottenger say that
313# America/Cordoba split into 6 subregions during 1991/1992, one of which
314# was America/San_Luis, but we haven't verified this yet so for now we'll
315# keep America/Cordoba a single region rather than splitting it into the
316# other 5 subregions.
317
318#
319# Zone NAME GMTOFF RULES FORMAT [UNTIL]
320#
321# Buenos Aires (BA), Capital Federal (CF),
322Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
323 -4:16:48 - CMT 1920 May # Cordoba Mean Time
324 -4:00 - ART 1930 Dec
325 -4:00 Arg AR%sT 1969 Oct 5
326 -3:00 Arg AR%sT 1999 Oct 3
327 -4:00 Arg AR%sT 2000 Mar 3
328 -3:00 Arg AR%sT
329#
330# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
331# Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
332# La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
333#
334# Shanks & Pottenger also make the following claims, which we haven't verified:
335# - Formosa switched to -3:00 on 1991-01-07.
336# - Misiones switched to -3:00 on 1990-12-29.
337# - Chaco switched to -3:00 on 1991-01-04.
338# - Santiago del Estero switched to -4:00 on 1991-04-01,
339# then to -3:00 on 1991-04-26.
340#
341Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
342 -4:16:48 - CMT 1920 May
343 -4:00 - ART 1930 Dec
344 -4:00 Arg AR%sT 1969 Oct 5
345 -3:00 Arg AR%sT 1991 Mar 3
346 -4:00 - WART 1991 Oct 20
347 -3:00 Arg AR%sT 1999 Oct 3
348 -4:00 Arg AR%sT 2000 Mar 3
349 -3:00 Arg AR%sT
350#
351# Tucuman (TM)
352Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
353 -4:16:48 - CMT 1920 May
354 -4:00 - ART 1930 Dec
355 -4:00 Arg AR%sT 1969 Oct 5
356 -3:00 Arg AR%sT 1991 Mar 3
357 -4:00 - WART 1991 Oct 20
358 -3:00 Arg AR%sT 1999 Oct 3
359 -4:00 Arg AR%sT 2000 Mar 3
360 -3:00 - ART 2004 Jun 1
361 -4:00 - WART 2004 Jun 13
362 -3:00 Arg AR%sT
363#
364# La Rioja (LR)
365Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
366 -4:16:48 - CMT 1920 May
367 -4:00 - ART 1930 Dec
368 -4:00 Arg AR%sT 1969 Oct 5
369 -3:00 Arg AR%sT 1991 Mar 1
370 -4:00 - WART 1991 May 7
371 -3:00 Arg AR%sT 1999 Oct 3
372 -4:00 Arg AR%sT 2000 Mar 3
373 -3:00 - ART 2004 Jun 1
374 -4:00 - WART 2004 Jun 20
375 -3:00 Arg AR%sT
376#
377# San Juan (SJ)
378Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
379 -4:16:48 - CMT 1920 May
380 -4:00 - ART 1930 Dec
381 -4:00 Arg AR%sT 1969 Oct 5
382 -3:00 Arg AR%sT 1991 Mar 1
383 -4:00 - WART 1991 May 7
384 -3:00 Arg AR%sT 1999 Oct 3
385 -4:00 Arg AR%sT 2000 Mar 3
386 -3:00 - ART 2004 May 31
387 -4:00 - WART 2004 Jul 25
388 -3:00 Arg AR%sT
389#
390# Jujuy (JY)
391Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
392 -4:16:48 - CMT 1920 May
393 -4:00 - ART 1930 Dec
394 -4:00 Arg AR%sT 1969 Oct 5
395 -3:00 Arg AR%sT 1990 Mar 4
396 -4:00 - WART 1990 Oct 28
397 -4:00 1:00 WARST 1991 Mar 17
398 -4:00 - WART 1991 Oct 6
399 -3:00 1:00 ARST 1992
400 -3:00 Arg AR%sT 1999 Oct 3
401 -4:00 Arg AR%sT 2000 Mar 3
402 -3:00 Arg AR%sT
403#
404# Catamarca (CT), Chubut (CH)
405Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
406 -4:16:48 - CMT 1920 May
407 -4:00 - ART 1930 Dec
408 -4:00 Arg AR%sT 1969 Oct 5
409 -3:00 Arg AR%sT 1991 Mar 3
410 -4:00 - WART 1991 Oct 20
411 -3:00 Arg AR%sT 1999 Oct 3
412 -4:00 Arg AR%sT 2000 Mar 3
413 -3:00 - ART 2004 Jun 1
414 -4:00 - WART 2004 Jun 20
415 -3:00 Arg AR%sT
416#
417# Mendoza (MZ)
418Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
419 -4:16:48 - CMT 1920 May
420 -4:00 - ART 1930 Dec
421 -4:00 Arg AR%sT 1969 Oct 5
422 -3:00 Arg AR%sT 1990 Mar 4
423 -4:00 - WART 1990 Oct 15
424 -4:00 1:00 WARST 1991 Mar 1
425 -4:00 - WART 1991 Oct 15
426 -4:00 1:00 WARST 1992 Mar 1
427 -4:00 - WART 1992 Oct 18
428 -3:00 Arg AR%sT 1999 Oct 3
429 -4:00 Arg AR%sT 2000 Mar 3
430 -3:00 - ART 2004 May 23
431 -4:00 - WART 2004 Sep 26
432 -3:00 Arg AR%sT
433#
434# San Luis (SL)
435Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
436 -4:16:48 - CMT 1920 May
437 -4:00 - ART 1930 Dec
438 -4:00 Arg AR%sT 1969 Oct 5
439 -3:00 Arg AR%sT 1990
440 -3:00 1:00 ARST 1990 Mar 14
441 -4:00 - WART 1990 Oct 15
442 -4:00 1:00 WARST 1991 Mar 1
443 -4:00 - WART 1991 Jun 1
444 -3:00 - ART 1999 Oct 3
445 -4:00 1:00 WARST 2000 Mar 3
446 -3:00 - ART 2004 May 31
447 -4:00 - WART 2004 Jul 25
448 -3:00 Arg AR%sT 2008 Jan 21
449 -3:00 - ART
450#
451# Santa Cruz (SC)
452Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
453 -4:16:48 - CMT 1920 May # Cordoba Mean Time
454 -4:00 - ART 1930 Dec
455 -4:00 Arg AR%sT 1969 Oct 5
456 -3:00 Arg AR%sT 1999 Oct 3
457 -4:00 Arg AR%sT 2000 Mar 3
458 -3:00 - ART 2004 Jun 1
459 -4:00 - WART 2004 Jun 20
460 -3:00 Arg AR%sT
461#
462# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
463Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
464 -4:16:48 - CMT 1920 May # Cordoba Mean Time
465 -4:00 - ART 1930 Dec
466 -4:00 Arg AR%sT 1969 Oct 5
467 -3:00 Arg AR%sT 1999 Oct 3
468 -4:00 Arg AR%sT 2000 Mar 3
469 -3:00 - ART 2004 May 30
470 -4:00 - WART 2004 Jun 20
471 -3:00 Arg AR%sT
472
473# Aruba
474# Zone NAME GMTOFF RULES FORMAT [UNTIL]
475Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
476 -4:30 - ANT 1965 # Netherlands Antilles Time
477 -4:00 - AST
478
479# Bolivia
480# Zone NAME GMTOFF RULES FORMAT [UNTIL]
481Zone America/La_Paz -4:32:36 - LMT 1890
482 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT
483 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
484 -4:00 - BOT # Bolivia Time
485
486# Brazil
487
488# From Paul Eggert (1993-11-18):
489# The mayor of Rio recently attempted to change the time zone rules
490# just in his city, in order to leave more summer time for the tourist trade.
491# The rule change lasted only part of the day;
492# the federal government refused to follow the city's rules, and business
493# was in a chaos, so the mayor backed down that afternoon.
494
495# From IATA SSIM (1996-02):
496# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),
497# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),
498# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),
499# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].
500# [The last three states are new to this issue of the IATA SSIM.]
501
502# From Gwillim Law (1996-10-07):
503# Geography, history (Tocantins was part of Goias until 1989), and other
504# sources of time zone information lead me to believe that AL, SE, and TO were
505# always in BR1, and so the only change was whether or not they observed DST....
506# The earliest issue of the SSIM I have is 2/91. Each issue from then until
507# 9/95 says that DST is observed only in the ten states I quoted from 9/95,
508# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2
509# (UTC-4).... The other two time zones given for Brazil are BR3, which is
510# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is
511# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's
512# become part of the state of Pernambuco). The boundary between BR1 and BR2
513# has never been clearly stated. They've simply been called East and West.
514# However, some conclusions can be drawn from another IATA manual: the Airline
515# Coding Directory, which lists close to 400 airports in Brazil. For each
516# airport it gives a time zone which is coded to the SSIM. From that
517# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),
518# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do
519# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.
520
521# From Marcos Tadeu (1998-09-27):
522# <a href="http://pcdsh01.on.br/verao1.html">
523# Brazilian official page
524# </a>
525
526# From Jesper Norgaard (2000-11-03):
527# [For an official list of which regions in Brazil use which time zones, see:]
528# http://pcdsh01.on.br/Fusbr.htm
529# http://pcdsh01.on.br/Fusbrhv.htm
530
531# From Celso Doria via David Madeo (2002-10-09):
532# The reason for the delay this year has to do with elections in Brazil.
533#
534# Unlike in the United States, elections in Brazil are 100% computerized and
535# the results are known almost immediately. Yesterday, it was the first
536# round of the elections when 115 million Brazilians voted for President,
537# Governor, Senators, Federal Deputies, and State Deputies. Nobody is
538# counting (or re-counting) votes anymore and we know there will be a second
539# round for the Presidency and also for some Governors. The 2nd round will
540# take place on October 27th.
541#
542# The reason why the DST will only begin November 3rd is that the thousands
543# of electoral machines used cannot have their time changed, and since the
544# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
545# the Government decided to postpone DST, instead of changing the Constitution
546# (maybe, for the next elections, it will be possible to change the clock)...
547
548# From Rodrigo Severo (2004-10-04):
549# It's just the biannual change made necessary by the much hyped, supposedly
550# modern Brazilian eletronic voting machines which, apparently, can't deal
551# with a time change between the first and the second rounds of the elections.
552
553# From Steffen Thorsen (2007-09-20):
554# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:
555# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
556
557# From Paul Schulze (2008-06-24):
558# ...by law number 11.662 of April 24, 2008 (published in the "Diario
559# Oficial da Uniao"...) in Brazil there are changes in the timezones,
560# effective today (00:00am at June 24, 2008) as follows:
561#
562# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the
563# part of the Amazonas state that had this timezone now being put to the
564# timezone UTC+4
565# b) The whole Para state now is put at timezone UTC+3, instead of just
566# part of it, as was before.
567#
568# This change follows a proposal of senator Tiao Viana of Acre state, that
569# proposed it due to concerns about open television channels displaying
570# programs inappropriate to youths in the states that had the timezone
571# UTC+5 too early in the night. In the occasion, some more corrections
572# were proposed, trying to unify the timezones of any given state. This
573# change modifies timezone rules defined in decree 2.784 of 18 June,
574# 1913.
575
576# From Rodrigo Severo (2008-06-24):
577# Just correcting the URL:
578# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=3Ddo&secao=3D1&pagina=3D1&data=3D25/04/2008">
579# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=3Ddo&secao=3D1&pagina=3D1&data=3D25/04/2008
580# </a>
581#
582# As a result of the above Decree I believe the America/Rio_Branco
583# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall
584# be created to represent the the west side of the Para State. I
585# suggest this new timezone be called Santarem as the most
586# important/populated city in the affected area.
587#
588# This new timezone would be the same as the Rio_Branco timezone up to
589# the 2008/06/24 change which would be to UTC-3 instead of UTC-4.
590
591# From Alex Krivenyshev (2008-06-24):
592# This is a quick reference page for New and Old Brazil Time Zones map.
593# <a href="http://www.worldtimezone.com/brazil-time-new-old.php">
594# http://www.worldtimezone.com/brazil-time-new-old.php
595# </a>
596#
597# - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05
598# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western
599# part of Par state is moving to one timezone UTC- 03 (from UTC -04).
600
601# From Paul Eggert (2002-10-10):
602# The official decrees referenced below are mostly taken from
603# <a href="http://pcdsh01.on.br/DecHV.html">
604# Decretos sobre o Horario de Verao no Brasil
605# </a>.
606
|
| 607# From Steffen Thorsen (2008-08-29):
608# As announced by the government and many newspapers in Brazil late
609# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and
610# it will end on 2009-02-15 (current rule for Brazil is fine). Based on
611# past years experience with the elections, there was a good chance that
612# the start was postponed to November, but it did not happen this year.
613#
614# It has not yet been posted to http://pcdsh01.on.br/DecHV.html
615#
616# An official page about it:
617# <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722">
618# http://www.mme.gov.br/site/news/detail.do?newsId=16722
619# </a>
620# Note that this link does not always work directly, but must be accessed
621# by going to
622# <a href="http://www.mme.gov.br/first>"
623# http://www.mme.gov.br/first
624# </a>
625#
626# One example link that works directly:
627# <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54">
628# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54
629# (Portuguese)
630# </a>
631#
632# We have a written a short article about it as well:
633# <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html">
634# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
635# </a>
636
|
594# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
595# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
596# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)
597Rule Brazil 1931 only - Oct 3 11:00 1:00 S
598Rule Brazil 1932 1933 - Apr 1 0:00 0 -
599Rule Brazil 1932 only - Oct 3 0:00 1:00 S
600# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
601# revoked DST.
602# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24)
603# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13)
604Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S
605Rule Brazil 1950 only - Apr 16 1:00 0 -
606Rule Brazil 1951 1952 - Apr 1 0:00 0 -
607# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
608Rule Brazil 1953 only - Mar 1 0:00 0 -
609# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
610# revoked DST.
611# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)
612# established DST from 1963-10-23 00:00 to 1964-02-29 00:00
613# in SP, RJ, GB, MG, ES, due to the prolongation of the drought.
614# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)
615# extended the above decree to all of the national territory on 12-09.
616Rule Brazil 1963 only - Dec 9 0:00 1:00 S
617# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)
618# extended summer time by one day to 1964-03-01 00:00 (start of school).
619Rule Brazil 1964 only - Mar 1 0:00 0 -
620# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
621Rule Brazil 1965 only - Jan 31 0:00 1:00 S
622Rule Brazil 1965 only - Mar 31 0:00 0 -
623# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
624Rule Brazil 1965 only - Dec 1 0:00 1:00 S
625# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
626Rule Brazil 1966 1968 - Mar 1 0:00 0 -
627Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S
628# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)
629# revoked DST.
630# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)
631Rule Brazil 1985 only - Nov 2 0:00 1:00 S
632# Decree 92,310 (1986-01-21)
633# Decree 92,463 (1986-03-13)
634Rule Brazil 1986 only - Mar 15 0:00 0 -
635# Decree 93,316 (1986-10-01)
636Rule Brazil 1986 only - Oct 25 0:00 1:00 S
637Rule Brazil 1987 only - Feb 14 0:00 0 -
638# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
639Rule Brazil 1987 only - Oct 25 0:00 1:00 S
640Rule Brazil 1988 only - Feb 7 0:00 0 -
641# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)
642# except for the states of AC, AM, PA, RR, RO, and AP (then a territory)
643Rule Brazil 1988 only - Oct 16 0:00 1:00 S
644Rule Brazil 1989 only - Jan 29 0:00 0 -
645# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
646# with the same exceptions
647Rule Brazil 1989 only - Oct 15 0:00 1:00 S
648Rule Brazil 1990 only - Feb 11 0:00 0 -
649# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)
650# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF.
651# Decree 99,629 (1990-10-19) adds BA, MT.
652Rule Brazil 1990 only - Oct 21 0:00 1:00 S
653Rule Brazil 1991 only - Feb 17 0:00 0 -
654# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)
655# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF.
656Rule Brazil 1991 only - Oct 20 0:00 1:00 S
657Rule Brazil 1992 only - Feb 9 0:00 0 -
658# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
659# adopted by same states.
660Rule Brazil 1992 only - Oct 25 0:00 1:00 S
661Rule Brazil 1993 only - Jan 31 0:00 0 -
662# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
663# adopted by same states, plus AM.
664# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
665# web page corrected 2004-01-07) adopted by same states, minus AM.
666# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
667# adopted by same states, plus MT and TO.
668# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
669# adds AL, SE.
670Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
671Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 -
672Rule Brazil 1996 only - Feb 11 0:00 0 -
673# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
674# adopted by same states, minus AL, SE.
675Rule Brazil 1996 only - Oct 6 0:00 1:00 S
676Rule Brazil 1997 only - Feb 16 0:00 0 -
677# From Daniel C. Sobral (1998-02-12):
678# In 1997, the DS began on October 6. The stated reason was that
679# because international television networks ignored Brazil's policy on DS,
680# they bought the wrong times on satellite for coverage of Pope's visit.
681# This year, the ending date of DS was postponed to March 1
682# to help dealing with the shortages of electric power.
683#
684# Decree 2,317 (1997-09-04), adopted by same states.
685Rule Brazil 1997 only - Oct 6 0:00 1:00 S
686# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
687# (1998-02-10)
688Rule Brazil 1998 only - Mar 1 0:00 0 -
689# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
690# adopted by the same states as before.
691Rule Brazil 1998 only - Oct 11 0:00 1:00 S
692Rule Brazil 1999 only - Feb 21 0:00 0 -
693# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
694# (1999-08-23) adopted by same states.
695# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)
696# adds SE, AL, PB, PE, RN, CE, PI, MA and RR.
697Rule Brazil 1999 only - Oct 3 0:00 1:00 S
698Rule Brazil 2000 only - Feb 27 0:00 0 -
699# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
700# adopted by the same states as before.
701# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
702# repeals DST in PE and RR, effective 2000-10-15 00:00.
703# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
704# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
705# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
706# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
707Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
708Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 -
709# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
710# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
711Rule Brazil 2002 only - Nov 3 0:00 1:00 S
712# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
713# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
714Rule Brazil 2003 only - Oct 19 0:00 1:00 S
715# Decree 5,223 (2004-10-01) reestablishes DST in MT.
716# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
717Rule Brazil 2004 only - Nov 2 0:00 1:00 S
718# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
719# adopted by the same states as before.
720Rule Brazil 2005 only - Oct 16 0:00 1:00 S
721# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),
722# adopted by the same states as before.
723Rule Brazil 2006 only - Nov 5 0:00 1:00 S
724Rule Brazil 2007 only - Feb 25 0:00 0 -
725# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
726# adopted by the same states as before.
| 637# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
638# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
639# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)
640Rule Brazil 1931 only - Oct 3 11:00 1:00 S
641Rule Brazil 1932 1933 - Apr 1 0:00 0 -
642Rule Brazil 1932 only - Oct 3 0:00 1:00 S
643# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
644# revoked DST.
645# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24)
646# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13)
647Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S
648Rule Brazil 1950 only - Apr 16 1:00 0 -
649Rule Brazil 1951 1952 - Apr 1 0:00 0 -
650# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
651Rule Brazil 1953 only - Mar 1 0:00 0 -
652# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
653# revoked DST.
654# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)
655# established DST from 1963-10-23 00:00 to 1964-02-29 00:00
656# in SP, RJ, GB, MG, ES, due to the prolongation of the drought.
657# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)
658# extended the above decree to all of the national territory on 12-09.
659Rule Brazil 1963 only - Dec 9 0:00 1:00 S
660# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)
661# extended summer time by one day to 1964-03-01 00:00 (start of school).
662Rule Brazil 1964 only - Mar 1 0:00 0 -
663# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
664Rule Brazil 1965 only - Jan 31 0:00 1:00 S
665Rule Brazil 1965 only - Mar 31 0:00 0 -
666# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
667Rule Brazil 1965 only - Dec 1 0:00 1:00 S
668# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
669Rule Brazil 1966 1968 - Mar 1 0:00 0 -
670Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S
671# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)
672# revoked DST.
673# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)
674Rule Brazil 1985 only - Nov 2 0:00 1:00 S
675# Decree 92,310 (1986-01-21)
676# Decree 92,463 (1986-03-13)
677Rule Brazil 1986 only - Mar 15 0:00 0 -
678# Decree 93,316 (1986-10-01)
679Rule Brazil 1986 only - Oct 25 0:00 1:00 S
680Rule Brazil 1987 only - Feb 14 0:00 0 -
681# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
682Rule Brazil 1987 only - Oct 25 0:00 1:00 S
683Rule Brazil 1988 only - Feb 7 0:00 0 -
684# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)
685# except for the states of AC, AM, PA, RR, RO, and AP (then a territory)
686Rule Brazil 1988 only - Oct 16 0:00 1:00 S
687Rule Brazil 1989 only - Jan 29 0:00 0 -
688# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
689# with the same exceptions
690Rule Brazil 1989 only - Oct 15 0:00 1:00 S
691Rule Brazil 1990 only - Feb 11 0:00 0 -
692# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)
693# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF.
694# Decree 99,629 (1990-10-19) adds BA, MT.
695Rule Brazil 1990 only - Oct 21 0:00 1:00 S
696Rule Brazil 1991 only - Feb 17 0:00 0 -
697# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)
698# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF.
699Rule Brazil 1991 only - Oct 20 0:00 1:00 S
700Rule Brazil 1992 only - Feb 9 0:00 0 -
701# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
702# adopted by same states.
703Rule Brazil 1992 only - Oct 25 0:00 1:00 S
704Rule Brazil 1993 only - Jan 31 0:00 0 -
705# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
706# adopted by same states, plus AM.
707# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
708# web page corrected 2004-01-07) adopted by same states, minus AM.
709# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
710# adopted by same states, plus MT and TO.
711# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
712# adds AL, SE.
713Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
714Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 -
715Rule Brazil 1996 only - Feb 11 0:00 0 -
716# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
717# adopted by same states, minus AL, SE.
718Rule Brazil 1996 only - Oct 6 0:00 1:00 S
719Rule Brazil 1997 only - Feb 16 0:00 0 -
720# From Daniel C. Sobral (1998-02-12):
721# In 1997, the DS began on October 6. The stated reason was that
722# because international television networks ignored Brazil's policy on DS,
723# they bought the wrong times on satellite for coverage of Pope's visit.
724# This year, the ending date of DS was postponed to March 1
725# to help dealing with the shortages of electric power.
726#
727# Decree 2,317 (1997-09-04), adopted by same states.
728Rule Brazil 1997 only - Oct 6 0:00 1:00 S
729# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
730# (1998-02-10)
731Rule Brazil 1998 only - Mar 1 0:00 0 -
732# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
733# adopted by the same states as before.
734Rule Brazil 1998 only - Oct 11 0:00 1:00 S
735Rule Brazil 1999 only - Feb 21 0:00 0 -
736# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
737# (1999-08-23) adopted by same states.
738# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)
739# adds SE, AL, PB, PE, RN, CE, PI, MA and RR.
740Rule Brazil 1999 only - Oct 3 0:00 1:00 S
741Rule Brazil 2000 only - Feb 27 0:00 0 -
742# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
743# adopted by the same states as before.
744# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
745# repeals DST in PE and RR, effective 2000-10-15 00:00.
746# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
747# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
748# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
749# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
750Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
751Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 -
752# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
753# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
754Rule Brazil 2002 only - Nov 3 0:00 1:00 S
755# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
756# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
757Rule Brazil 2003 only - Oct 19 0:00 1:00 S
758# Decree 5,223 (2004-10-01) reestablishes DST in MT.
759# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
760Rule Brazil 2004 only - Nov 2 0:00 1:00 S
761# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
762# adopted by the same states as before.
763Rule Brazil 2005 only - Oct 16 0:00 1:00 S
764# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),
765# adopted by the same states as before.
766Rule Brazil 2006 only - Nov 5 0:00 1:00 S
767Rule Brazil 2007 only - Feb 25 0:00 0 -
768# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
769# adopted by the same states as before.
|
727Rule Brazil 2007 max - Oct Sun>=8 0:00 1:00 S
| 770Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S
|
728Rule Brazil 2008 max - Feb Sun>=15 0:00 0 -
| 771Rule Brazil 2008 max - Feb Sun>=15 0:00 0 -
|
| 772Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S
|
729# The latest ruleset listed above says that the following states observe DST:
730# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
731# For dates after mid-2008, the above rules with TO="max" are guesses
732# and are quite possibly wrong, but are more likely than no DST at all.
733
734# Zone NAME GMTOFF RULES FORMAT [UNTIL]
735#
736# Fernando de Noronha (administratively part of PE)
737Zone America/Noronha -2:09:40 - LMT 1914
738 -2:00 Brazil FN%sT 1990 Sep 17
739 -2:00 - FNT 1999 Sep 30
740 -2:00 Brazil FN%sT 2000 Oct 15
741 -2:00 - FNT 2001 Sep 13
742 -2:00 Brazil FN%sT 2002 Oct 1
743 -2:00 - FNT
744# Other Atlantic islands have no permanent settlement.
745# These include Trindade and Martin Vaz (administratively part of ES),
746# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
747# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
748# it also included the Penedos.
749#
750# Amapa (AP), east Para (PA)
751# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
752# The division between east and west Para is the river Xingu.
753# In the north a very small part from the river Javary (now Jari I guess,
754# the border with Amapa) to the Amazon, then to the Xingu.
755Zone America/Belem -3:13:56 - LMT 1914
756 -3:00 Brazil BR%sT 1988 Sep 12
757 -3:00 - BRT
758#
759# west Para (PA)
760# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
761Zone America/Santarem -3:38:48 - LMT 1914
762 -4:00 Brazil AM%sT 1988 Sep 12
763 -4:00 - AMT 2008 Jun 24 00:00
764 -3:00 - BRT
765#
766# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
767# Paraiba (PB)
768Zone America/Fortaleza -2:34:00 - LMT 1914
769 -3:00 Brazil BR%sT 1990 Sep 17
770 -3:00 - BRT 1999 Sep 30
771 -3:00 Brazil BR%sT 2000 Oct 22
772 -3:00 - BRT 2001 Sep 13
773 -3:00 Brazil BR%sT 2002 Oct 1
774 -3:00 - BRT
775#
776# Pernambuco (PE) (except Atlantic islands)
777Zone America/Recife -2:19:36 - LMT 1914
778 -3:00 Brazil BR%sT 1990 Sep 17
779 -3:00 - BRT 1999 Sep 30
780 -3:00 Brazil BR%sT 2000 Oct 15
781 -3:00 - BRT 2001 Sep 13
782 -3:00 Brazil BR%sT 2002 Oct 1
783 -3:00 - BRT
784#
785# Tocantins (TO)
786Zone America/Araguaina -3:12:48 - LMT 1914
787 -3:00 Brazil BR%sT 1990 Sep 17
788 -3:00 - BRT 1995 Sep 14
789 -3:00 Brazil BR%sT 2003 Sep 24
790 -3:00 - BRT
791#
792# Alagoas (AL), Sergipe (SE)
793Zone America/Maceio -2:22:52 - LMT 1914
794 -3:00 Brazil BR%sT 1990 Sep 17
795 -3:00 - BRT 1995 Oct 13
796 -3:00 Brazil BR%sT 1996 Sep 4
797 -3:00 - BRT 1999 Sep 30
798 -3:00 Brazil BR%sT 2000 Oct 22
799 -3:00 - BRT 2001 Sep 13
800 -3:00 Brazil BR%sT 2002 Oct 1
801 -3:00 - BRT
802#
803# Bahia (BA)
804# There are too many Salvadors elsewhere, so use America/Bahia instead
805# of America/Salvador.
806Zone America/Bahia -2:34:04 - LMT 1914
807 -3:00 Brazil BR%sT 2003 Sep 24
808 -3:00 - BRT
809#
810# Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
811# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
812# Santa Catarina (SC), Rio Grande do Sul (RS)
813Zone America/Sao_Paulo -3:06:28 - LMT 1914
814 -3:00 Brazil BR%sT 1963 Oct 23 00:00
815 -3:00 1:00 BRST 1964
816 -3:00 Brazil BR%sT
817#
818# Mato Grosso do Sul (MS)
819Zone America/Campo_Grande -3:38:28 - LMT 1914
820 -4:00 Brazil AM%sT
821#
822# Mato Grosso (MT)
823Zone America/Cuiaba -3:44:20 - LMT 1914
824 -4:00 Brazil AM%sT 2003 Sep 24
825 -4:00 - AMT 2004 Oct 1
826 -4:00 Brazil AM%sT
827#
828# Rondonia (RO)
829Zone America/Porto_Velho -4:15:36 - LMT 1914
830 -4:00 Brazil AM%sT 1988 Sep 12
831 -4:00 - AMT
832#
833# Roraima (RR)
834Zone America/Boa_Vista -4:02:40 - LMT 1914
835 -4:00 Brazil AM%sT 1988 Sep 12
836 -4:00 - AMT 1999 Sep 30
837 -4:00 Brazil AM%sT 2000 Oct 15
838 -4:00 - AMT
839#
840# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto
841# The great circle line from Tabatinga to Porto Acre divides
842# east from west Amazonas.
843Zone America/Manaus -4:00:04 - LMT 1914
844 -4:00 Brazil AM%sT 1988 Sep 12
845 -4:00 - AMT 1993 Sep 28
846 -4:00 Brazil AM%sT 1994 Sep 22
847 -4:00 - AMT
848#
849# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
850# Eirunepe, Envira, Ipixuna
851Zone America/Eirunepe -4:39:28 - LMT 1914
852 -5:00 Brazil AC%sT 1988 Sep 12
853 -5:00 - ACT 1993 Sep 28
854 -5:00 Brazil AC%sT 1994 Sep 22
855 -5:00 - ACT 2008 Jun 24 00:00
856 -4:00 - AMT
857#
858# Acre (AC)
859Zone America/Rio_Branco -4:31:12 - LMT 1914
860 -5:00 Brazil AC%sT 1988 Sep 12
861 -5:00 - ACT 2008 Jun 24 00:00
862 -4:00 - AMT
863
864# Chile
865
866# From Eduardo Krell (1995-10-19):
867# The law says to switch to DST at midnight [24:00] on the second SATURDAY
868# of October.... The law is the same for March and October.
869# (1998-09-29):
870# Because of the drought this year, the government decided to go into
871# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ...
872# (unless there's another dry season next year, I guess).
873
874# From Julio I. Pacheco Troncoso (1999-03-18):
875# Because of the same drought, the government decided to end DST later,
876# on April 3, (one-time change).
877
878# From Oscar van Vlijmen (2006-10-08):
879# http://www.horaoficial.cl/cambio.htm
880
881# From Jesper Norgaard Welen (2006-10-08):
882# I think that there are some obvious mistakes in the suggested link
883# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
884# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
885# (they should have been 1990-09-15 and 1990-09-16 respectively), but
886# anyhow it clears up some doubts too.
887
888# From Paul Eggert (2006-12-27):
889# The following data for Chile and America/Santiago are from
890# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by
891# Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks
892# & Pottenger, except with DST transitions after 1932 cloned from
893# America/Santiago. The pre-1980 Pacific/Easter data are dubious,
894# but we have no other source.
895
896# From German Poo-Caaman~o (2008-03-03):
897# Due to drought, Chile extends Daylight Time in three weeks. This
898# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
899# and Saturday 3/29 at 22:00 for Pacific/Easter)
900# The Supreme Decree is located at
901# <a href="http://www.shoa.cl/servicios/supremo316.pdf">
902# http://www.shoa.cl/servicios/supremo316.pdf
903# </a>
904# and the instructions for 2008 are located in:
905# <a href="http://www.horaoficial.cl/cambio.htm">
906# http://www.horaoficial.cl/cambio.htm
907# </a>.
908
909# From Jose Miguel Garrido (2008-03-05):
910# ...
911# You could see the announces of the change on
912# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
913# http://www.shoa.cl/noticias/2008/04hora/hora.htm
914# </a>.
915
916# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
917Rule Chile 1927 1932 - Sep 1 0:00 1:00 S
918Rule Chile 1928 1932 - Apr 1 0:00 0 -
919Rule Chile 1942 only - Jun 1 4:00u 0 -
920Rule Chile 1942 only - Aug 1 5:00u 1:00 S
921Rule Chile 1946 only - Jul 15 4:00u 1:00 S
922Rule Chile 1946 only - Sep 1 3:00u 0:00 -
923Rule Chile 1947 only - Apr 1 4:00u 0 -
924Rule Chile 1968 only - Nov 3 4:00u 1:00 S
925Rule Chile 1969 only - Mar 30 3:00u 0 -
926Rule Chile 1969 only - Nov 23 4:00u 1:00 S
927Rule Chile 1970 only - Mar 29 3:00u 0 -
928Rule Chile 1971 only - Mar 14 3:00u 0 -
929Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S
930Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 -
931Rule Chile 1973 only - Sep 30 4:00u 1:00 S
932Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S
933Rule Chile 1987 only - Apr 12 3:00u 0 -
934Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 -
935Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S
936Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S
937Rule Chile 1990 only - Mar 18 3:00u 0 -
938Rule Chile 1990 only - Sep 16 4:00u 1:00 S
939Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 -
940Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S
941Rule Chile 1997 only - Mar 30 3:00u 0 -
942Rule Chile 1998 only - Mar Sun>=9 3:00u 0 -
943Rule Chile 1998 only - Sep 27 4:00u 1:00 S
944Rule Chile 1999 only - Apr 4 3:00u 0 -
945Rule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S
946Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 -
947# N.B.: the end of March 29 in Chile is March 30 in Universal time,
948# which is used below in specifying the transition.
949Rule Chile 2008 only - Mar 30 3:00u 0 -
950Rule Chile 2009 max - Mar Sun>=9 3:00u 0 -
951# IATA SSIM anomalies: (1992-02) says 1992-03-14;
952# (1996-09) says 1998-03-08. Ignore these.
953# Zone NAME GMTOFF RULES FORMAT [UNTIL]
954Zone America/Santiago -4:42:46 - LMT 1890
955 -4:42:46 - SMT 1910 # Santiago Mean Time
956 -5:00 - CLT 1916 Jul 1 # Chile Time
957 -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time
958 -4:00 - CLT 1919 Jul 1 # Chile Time
959 -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time
960 -5:00 Chile CL%sT 1947 May 22 # Chile Time
961 -4:00 Chile CL%sT
962Zone Pacific/Easter -7:17:44 - LMT 1890
963 -7:17:28 - EMT 1932 Sep # Easter Mean Time
964 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time
965 -6:00 Chile EAS%sT
966#
967# Sala y Gomez Island is like Pacific/Easter.
968# Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
969# San Felix, and Antarctic bases, are like America/Santiago.
970
971# Colombia
972# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
973Rule CO 1992 only - May 3 0:00 1:00 S
974Rule CO 1993 only - Apr 4 0:00 0 -
975# Zone NAME GMTOFF RULES FORMAT [UNTIL]
976Zone America/Bogota -4:56:20 - LMT 1884 Mar 13
977 -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time
978 -5:00 CO CO%sT # Colombia Time
979# Malpelo, Providencia, San Andres
980# no information; probably like America/Bogota
981
982# Curacao
983#
984# From Paul Eggert (2006-03-22):
985# Shanks & Pottenger say that The Bottom and Philipsburg have been at
986# -4:00 since standard time was introduced on 1912-03-02; and that
987# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
988# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say
989# Saba Island has been like Curacao.
990# This all predates our 1970 cutoff, though.
991#
992# By July 2007 Curacao and St Maarten are planned to become
993# associated states within the Netherlands, much like Aruba;
994# Bonaire, Saba and St Eustatius would become directly part of the
995# Netherlands as Kingdom Islands. This won't affect their time zones
996# though, as far as we know.
997#
998# Zone NAME GMTOFF RULES FORMAT [UNTIL]
999Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad
1000 -4:30 - ANT 1965 # Netherlands Antilles Time
1001 -4:00 - AST
1002
1003# Ecuador
1004#
1005# From Paul Eggert (2007-03-04):
1006# Apparently Ecuador had a failed experiment with DST in 1992.
1007# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1008# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1009# talk about "hora Sixto". Leave this alone for now, as we have no data.
1010#
1011# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1012Zone America/Guayaquil -5:19:20 - LMT 1890
1013 -5:14:00 - QMT 1931 # Quito Mean Time
1014 -5:00 - ECT # Ecuador Time
1015Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
1016 -5:00 - ECT 1986
1017 -6:00 - GALT # Galapagos Time
1018
1019# Falklands
1020
1021# From Paul Eggert (2006-03-22):
1022# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1023# the IATA gives 1996-09-08. Go with Shanks & Pottenger.
1024
1025# From Falkland Islands Government Office, London (2001-01-22)
1026# via Jesper Norgaard:
1027# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15
1028# April 2001 and advance one hour to summer time at 2 am on Sunday 2
1029# September. It is anticipated that the clocks will revert back at 2
1030# am on Sunday 21 April 2002 and advance to summer time at 2 am on
1031# Sunday 1 September.
1032
1033# From Rives McDow (2001-02-13):
1034#
1035# I have communicated several times with people there, and the last
1036# time I had communications that was helpful was in 1998. Here is
1037# what was said then:
1038#
1039# "The general rule was that Stanley used daylight saving and the Camp
1040# did not. However for various reasons many people in the Camp have
1041# started to use daylight saving (known locally as 'Stanley Time')
1042# There is no rule as to who uses daylight saving - it is a matter of
1043# personal choice and so it is impossible to draw a map showing who
1044# uses it and who does not. Any list would be out of date as soon as
1045# it was produced. This year daylight saving ended on April 18/19th
1046# and started again on September 12/13th. I do not know what the rule
1047# is, but can find out if you like. We do not change at the same time
1048# as UK or Chile."
1049#
1050# I did have in my notes that the rule was "Second Saturday in Sep at
1051# 0:00 until third Saturday in Apr at 0:00". I think that this does
1052# not agree in some cases with Shanks; is this true?
1053#
1054# Also, there is no mention in the list that some areas in the
1055# Falklands do not use DST. I have found in my communications there
1056# that these areas are on the western half of East Falkland and all of
1057# West Falkland. Stanley is the only place that consistently observes
1058# DST. Again, as in other places in the world, the farmers don't like
1059# it. West Falkland is almost entirely sheep farmers.
1060#
1061# I know one lady there that keeps a list of which farm keeps DST and
1062# which doesn't each year. She runs a shop in Stanley, and says that
1063# the list changes each year. She uses it to communicate to her
1064# customers, catching them when they are home for lunch or dinner.
1065
1066# From Paul Eggert (2001-03-05):
1067# For now, we'll just record the time in Stanley, since we have no
1068# better info.
1069
1070# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1071Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S
1072Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 -
1073Rule Falk 1939 only - Oct 1 0:00 1:00 S
1074Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S
1075Rule Falk 1943 only - Jan 1 0:00 0 -
1076Rule Falk 1983 only - Sep lastSun 0:00 1:00 S
1077Rule Falk 1984 1985 - Apr lastSun 0:00 0 -
1078Rule Falk 1984 only - Sep 16 0:00 1:00 S
1079Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S
1080Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 -
1081Rule Falk 2001 max - Apr Sun>=15 2:00 0 -
1082Rule Falk 2001 max - Sep Sun>=1 2:00 1:00 S
1083# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1084Zone Atlantic/Stanley -3:51:24 - LMT 1890
1085 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time
1086 -4:00 Falk FK%sT 1983 May # Falkland Is Time
1087 -3:00 Falk FK%sT 1985 Sep 15
1088 -4:00 Falk FK%sT
1089
1090# French Guiana
1091# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1092Zone America/Cayenne -3:29:20 - LMT 1911 Jul
1093 -4:00 - GFT 1967 Oct # French Guiana Time
1094 -3:00 - GFT
1095
1096# Guyana
1097# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1098Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
1099 -3:45 - GBGT 1966 May 26 # Br Guiana Time
1100 -3:45 - GYT 1975 Jul 31 # Guyana Time
1101 -3:00 - GYT 1991
1102# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
1103 -4:00 - GYT
1104
1105# Paraguay
1106# From Paul Eggert (2006-03-22):
1107# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,
1108# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999
1109# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
1110# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1111Rule Para 1975 1988 - Oct 1 0:00 1:00 S
1112Rule Para 1975 1978 - Mar 1 0:00 0 -
1113Rule Para 1979 1991 - Apr 1 0:00 0 -
1114Rule Para 1989 only - Oct 22 0:00 1:00 S
1115Rule Para 1990 only - Oct 1 0:00 1:00 S
1116Rule Para 1991 only - Oct 6 0:00 1:00 S
1117Rule Para 1992 only - Mar 1 0:00 0 -
1118Rule Para 1992 only - Oct 5 0:00 1:00 S
1119Rule Para 1993 only - Mar 31 0:00 0 -
1120Rule Para 1993 1995 - Oct 1 0:00 1:00 S
1121Rule Para 1994 1995 - Feb lastSun 0:00 0 -
1122Rule Para 1996 only - Mar 1 0:00 0 -
1123# IATA SSIM (2000-02) says 1999-10-10; ignore this for now.
1124# From Steffen Thorsen (2000-10-02):
1125# I have three independent reports that Paraguay changed to DST this Sunday
1126# (10-01).
1127#
1128# Translated by Gwillim Law (2001-02-27) from
1129# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm">
1130# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)
1131# </a>:
1132# Starting at 0:00 today, the clock will be set forward 60 minutes, in
1133# fulfillment of Decree No. 7,273 of the Executive Power.... The time change
1134# system has been operating for several years. Formerly there was a separate
1135# decree each year; the new law has the same effect, but permanently. Every
1136# year, the time will change on the first Sunday of October; likewise, the
1137# clock will be set back on the first Sunday of March.
1138#
1139Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S
1140# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.
1141Rule Para 1997 only - Feb lastSun 0:00 0 -
1142# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
1143# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
1144Rule Para 1998 2001 - Mar Sun>=1 0:00 0 -
1145# From Rives McDow (2002-02-28):
1146# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the
1147# dst method to be from the first Sunday in September to the first Sunday in
1148# April.
1149Rule Para 2002 2004 - Apr Sun>=1 0:00 0 -
1150Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S
1151#
1152# From Jesper Norgaard Welen (2005-01-02):
1153# There are several sources that claim that Paraguay made
1154# a timezone rule change in autumn 2004.
1155# From Steffen Thorsen (2005-01-05):
1156# Decree 1,867 (2004-03-05)
1157# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
1158# <http://www.presidencia.gov.py/decretos/D1867.pdf>
1159Rule Para 2004 max - Oct Sun>=15 0:00 1:00 S
1160Rule Para 2005 max - Mar Sun>=8 0:00 0 -
1161
1162# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1163Zone America/Asuncion -3:50:40 - LMT 1890
1164 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
1165 -4:00 - PYT 1972 Oct # Paraguay Time
1166 -3:00 - PYT 1974 Apr
1167 -4:00 Para PY%sT
1168
1169# Peru
1170#
1171# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
1172# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
1173# When we were in Peru in 1985-1986, they apparently switched over
1174# sometime between December 29 and January 3 while we were on the Amazon.
1175#
1176# From Paul Eggert (2006-03-22):
1177# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987.
1178
1179# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1180Rule Peru 1938 only - Jan 1 0:00 1:00 S
1181Rule Peru 1938 only - Apr 1 0:00 0 -
1182Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
1183Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
1184Rule Peru 1986 1987 - Jan 1 0:00 1:00 S
1185Rule Peru 1986 1987 - Apr 1 0:00 0 -
1186Rule Peru 1990 only - Jan 1 0:00 1:00 S
1187Rule Peru 1990 only - Apr 1 0:00 0 -
1188# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
1189Rule Peru 1994 only - Jan 1 0:00 1:00 S
1190Rule Peru 1994 only - Apr 1 0:00 0 -
1191# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1192Zone America/Lima -5:08:12 - LMT 1890
1193 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
1194 -5:00 Peru PE%sT # Peru Time
1195
1196# South Georgia
1197# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1198Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
1199 -2:00 - GST # South Georgia Time
1200
1201# South Sandwich Is
1202# uninhabited; scientific personnel have wintered
1203
1204# Suriname
1205# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1206Zone America/Paramaribo -3:40:40 - LMT 1911
1207 -3:40:52 - PMT 1935 # Paramaribo Mean Time
1208 -3:40:36 - PMT 1945 Oct # The capital moved?
1209 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time
1210 -3:30 - SRT 1984 Oct # Suriname Time
1211 -3:00 - SRT
1212
1213# Trinidad and Tobago
1214# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1215Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
1216 -4:00 - AST
1217
1218# Uruguay
1219# From Paul Eggert (1993-11-18):
1220# Uruguay wins the prize for the strangest peacetime manipulation of the rules.
1221# From Shanks & Pottenger:
1222# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1223# Whitman gives 1923 Oct 1; go with Shanks & Pottenger.
1224Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS
1225Rule Uruguay 1924 1926 - Apr 1 0:00 0 -
1226Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS
1227Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS
1228# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.
1229Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 -
1230Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS
1231Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 -
1232# Whitman gives 1937 Oct 3; go with Shanks & Pottenger.
1233Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS
1234# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
1235# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger.
1236Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS
1237Rule Uruguay 1942 only - Jan 1 0:00 0 -
1238Rule Uruguay 1942 only - Dec 14 0:00 1:00 S
1239Rule Uruguay 1943 only - Mar 14 0:00 0 -
1240Rule Uruguay 1959 only - May 24 0:00 1:00 S
1241Rule Uruguay 1959 only - Nov 15 0:00 0 -
1242Rule Uruguay 1960 only - Jan 17 0:00 1:00 S
1243Rule Uruguay 1960 only - Mar 6 0:00 0 -
1244Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S
1245Rule Uruguay 1965 only - Sep 26 0:00 0 -
1246Rule Uruguay 1966 1967 - Oct 31 0:00 0 -
1247Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS
1248Rule Uruguay 1968 1970 - Dec 2 0:00 0 -
1249Rule Uruguay 1972 only - Apr 24 0:00 1:00 S
1250Rule Uruguay 1972 only - Aug 15 0:00 0 -
1251Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS
1252Rule Uruguay 1974 only - Dec 22 0:00 1:00 S
1253Rule Uruguay 1976 only - Oct 1 0:00 0 -
1254Rule Uruguay 1977 only - Dec 4 0:00 1:00 S
1255Rule Uruguay 1978 only - Apr 1 0:00 0 -
1256Rule Uruguay 1979 only - Oct 1 0:00 1:00 S
1257Rule Uruguay 1980 only - May 1 0:00 0 -
1258Rule Uruguay 1987 only - Dec 14 0:00 1:00 S
1259Rule Uruguay 1988 only - Mar 14 0:00 0 -
1260Rule Uruguay 1988 only - Dec 11 0:00 1:00 S
1261Rule Uruguay 1989 only - Mar 12 0:00 0 -
1262Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
1263# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,
1264# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
1265Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
1266Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
1267Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
1268Rule Uruguay 1993 only - Feb 28 0:00 0 -
1269# From Eduardo Cota (2004-09-20):
1270# The uruguayan government has decreed a change in the local time....
1271# http://www.presidencia.gub.uy/decretos/2004091502.htm
1272Rule Uruguay 2004 only - Sep 19 0:00 1:00 S
1273# From Steffen Thorsen (2005-03-11):
1274# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to
1275# save energy ... it was postponed two weeks....
1276# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm
1277Rule Uruguay 2005 only - Mar 27 2:00 0 -
1278# From Eduardo Cota (2005-09-27):
1279# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF
1280# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at
1281# 02:00 local time, official time in Uruguay will be at GMT -2.
1282Rule Uruguay 2005 only - Oct 9 2:00 1:00 S
1283Rule Uruguay 2006 only - Mar 12 2:00 0 -
1284# From Jesper Norgaard Welen (2006-09-06):
1285# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF
1286Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S
1287Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 -
1288# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1289Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1290 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1291 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
1292 -3:00 Uruguay UY%sT
1293
1294# Venezuela
1295#
1296# From John Stainforth (2007-11-28):
1297# ... the change for Venezuela originally expected for 2007-12-31 has
1298# been brought forward to 2007-12-09. The official announcement was
1299# published today in the "Gaceta Oficial de la Republica Bolivariana
1300# de Venezuela, numero 38.819" (official document for all laws or
1301# resolution publication)
1302# http://www.globovision.com/news.php?nid=72208
1303
1304# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1305Zone America/Caracas -4:27:44 - LMT 1890
1306 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1307 -4:30 - VET 1965 # Venezuela Time
1308 -4:00 - VET 2007 Dec 9 03:00
1309 -4:30 - VET
| 773# The latest ruleset listed above says that the following states observe DST:
774# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
775# For dates after mid-2008, the above rules with TO="max" are guesses
776# and are quite possibly wrong, but are more likely than no DST at all.
777
778# Zone NAME GMTOFF RULES FORMAT [UNTIL]
779#
780# Fernando de Noronha (administratively part of PE)
781Zone America/Noronha -2:09:40 - LMT 1914
782 -2:00 Brazil FN%sT 1990 Sep 17
783 -2:00 - FNT 1999 Sep 30
784 -2:00 Brazil FN%sT 2000 Oct 15
785 -2:00 - FNT 2001 Sep 13
786 -2:00 Brazil FN%sT 2002 Oct 1
787 -2:00 - FNT
788# Other Atlantic islands have no permanent settlement.
789# These include Trindade and Martin Vaz (administratively part of ES),
790# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
791# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
792# it also included the Penedos.
793#
794# Amapa (AP), east Para (PA)
795# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
796# The division between east and west Para is the river Xingu.
797# In the north a very small part from the river Javary (now Jari I guess,
798# the border with Amapa) to the Amazon, then to the Xingu.
799Zone America/Belem -3:13:56 - LMT 1914
800 -3:00 Brazil BR%sT 1988 Sep 12
801 -3:00 - BRT
802#
803# west Para (PA)
804# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
805Zone America/Santarem -3:38:48 - LMT 1914
806 -4:00 Brazil AM%sT 1988 Sep 12
807 -4:00 - AMT 2008 Jun 24 00:00
808 -3:00 - BRT
809#
810# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
811# Paraiba (PB)
812Zone America/Fortaleza -2:34:00 - LMT 1914
813 -3:00 Brazil BR%sT 1990 Sep 17
814 -3:00 - BRT 1999 Sep 30
815 -3:00 Brazil BR%sT 2000 Oct 22
816 -3:00 - BRT 2001 Sep 13
817 -3:00 Brazil BR%sT 2002 Oct 1
818 -3:00 - BRT
819#
820# Pernambuco (PE) (except Atlantic islands)
821Zone America/Recife -2:19:36 - LMT 1914
822 -3:00 Brazil BR%sT 1990 Sep 17
823 -3:00 - BRT 1999 Sep 30
824 -3:00 Brazil BR%sT 2000 Oct 15
825 -3:00 - BRT 2001 Sep 13
826 -3:00 Brazil BR%sT 2002 Oct 1
827 -3:00 - BRT
828#
829# Tocantins (TO)
830Zone America/Araguaina -3:12:48 - LMT 1914
831 -3:00 Brazil BR%sT 1990 Sep 17
832 -3:00 - BRT 1995 Sep 14
833 -3:00 Brazil BR%sT 2003 Sep 24
834 -3:00 - BRT
835#
836# Alagoas (AL), Sergipe (SE)
837Zone America/Maceio -2:22:52 - LMT 1914
838 -3:00 Brazil BR%sT 1990 Sep 17
839 -3:00 - BRT 1995 Oct 13
840 -3:00 Brazil BR%sT 1996 Sep 4
841 -3:00 - BRT 1999 Sep 30
842 -3:00 Brazil BR%sT 2000 Oct 22
843 -3:00 - BRT 2001 Sep 13
844 -3:00 Brazil BR%sT 2002 Oct 1
845 -3:00 - BRT
846#
847# Bahia (BA)
848# There are too many Salvadors elsewhere, so use America/Bahia instead
849# of America/Salvador.
850Zone America/Bahia -2:34:04 - LMT 1914
851 -3:00 Brazil BR%sT 2003 Sep 24
852 -3:00 - BRT
853#
854# Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
855# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
856# Santa Catarina (SC), Rio Grande do Sul (RS)
857Zone America/Sao_Paulo -3:06:28 - LMT 1914
858 -3:00 Brazil BR%sT 1963 Oct 23 00:00
859 -3:00 1:00 BRST 1964
860 -3:00 Brazil BR%sT
861#
862# Mato Grosso do Sul (MS)
863Zone America/Campo_Grande -3:38:28 - LMT 1914
864 -4:00 Brazil AM%sT
865#
866# Mato Grosso (MT)
867Zone America/Cuiaba -3:44:20 - LMT 1914
868 -4:00 Brazil AM%sT 2003 Sep 24
869 -4:00 - AMT 2004 Oct 1
870 -4:00 Brazil AM%sT
871#
872# Rondonia (RO)
873Zone America/Porto_Velho -4:15:36 - LMT 1914
874 -4:00 Brazil AM%sT 1988 Sep 12
875 -4:00 - AMT
876#
877# Roraima (RR)
878Zone America/Boa_Vista -4:02:40 - LMT 1914
879 -4:00 Brazil AM%sT 1988 Sep 12
880 -4:00 - AMT 1999 Sep 30
881 -4:00 Brazil AM%sT 2000 Oct 15
882 -4:00 - AMT
883#
884# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto
885# The great circle line from Tabatinga to Porto Acre divides
886# east from west Amazonas.
887Zone America/Manaus -4:00:04 - LMT 1914
888 -4:00 Brazil AM%sT 1988 Sep 12
889 -4:00 - AMT 1993 Sep 28
890 -4:00 Brazil AM%sT 1994 Sep 22
891 -4:00 - AMT
892#
893# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
894# Eirunepe, Envira, Ipixuna
895Zone America/Eirunepe -4:39:28 - LMT 1914
896 -5:00 Brazil AC%sT 1988 Sep 12
897 -5:00 - ACT 1993 Sep 28
898 -5:00 Brazil AC%sT 1994 Sep 22
899 -5:00 - ACT 2008 Jun 24 00:00
900 -4:00 - AMT
901#
902# Acre (AC)
903Zone America/Rio_Branco -4:31:12 - LMT 1914
904 -5:00 Brazil AC%sT 1988 Sep 12
905 -5:00 - ACT 2008 Jun 24 00:00
906 -4:00 - AMT
907
908# Chile
909
910# From Eduardo Krell (1995-10-19):
911# The law says to switch to DST at midnight [24:00] on the second SATURDAY
912# of October.... The law is the same for March and October.
913# (1998-09-29):
914# Because of the drought this year, the government decided to go into
915# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ...
916# (unless there's another dry season next year, I guess).
917
918# From Julio I. Pacheco Troncoso (1999-03-18):
919# Because of the same drought, the government decided to end DST later,
920# on April 3, (one-time change).
921
922# From Oscar van Vlijmen (2006-10-08):
923# http://www.horaoficial.cl/cambio.htm
924
925# From Jesper Norgaard Welen (2006-10-08):
926# I think that there are some obvious mistakes in the suggested link
927# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
928# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
929# (they should have been 1990-09-15 and 1990-09-16 respectively), but
930# anyhow it clears up some doubts too.
931
932# From Paul Eggert (2006-12-27):
933# The following data for Chile and America/Santiago are from
934# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by
935# Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks
936# & Pottenger, except with DST transitions after 1932 cloned from
937# America/Santiago. The pre-1980 Pacific/Easter data are dubious,
938# but we have no other source.
939
940# From German Poo-Caaman~o (2008-03-03):
941# Due to drought, Chile extends Daylight Time in three weeks. This
942# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
943# and Saturday 3/29 at 22:00 for Pacific/Easter)
944# The Supreme Decree is located at
945# <a href="http://www.shoa.cl/servicios/supremo316.pdf">
946# http://www.shoa.cl/servicios/supremo316.pdf
947# </a>
948# and the instructions for 2008 are located in:
949# <a href="http://www.horaoficial.cl/cambio.htm">
950# http://www.horaoficial.cl/cambio.htm
951# </a>.
952
953# From Jose Miguel Garrido (2008-03-05):
954# ...
955# You could see the announces of the change on
956# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
957# http://www.shoa.cl/noticias/2008/04hora/hora.htm
958# </a>.
959
960# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
961Rule Chile 1927 1932 - Sep 1 0:00 1:00 S
962Rule Chile 1928 1932 - Apr 1 0:00 0 -
963Rule Chile 1942 only - Jun 1 4:00u 0 -
964Rule Chile 1942 only - Aug 1 5:00u 1:00 S
965Rule Chile 1946 only - Jul 15 4:00u 1:00 S
966Rule Chile 1946 only - Sep 1 3:00u 0:00 -
967Rule Chile 1947 only - Apr 1 4:00u 0 -
968Rule Chile 1968 only - Nov 3 4:00u 1:00 S
969Rule Chile 1969 only - Mar 30 3:00u 0 -
970Rule Chile 1969 only - Nov 23 4:00u 1:00 S
971Rule Chile 1970 only - Mar 29 3:00u 0 -
972Rule Chile 1971 only - Mar 14 3:00u 0 -
973Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S
974Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 -
975Rule Chile 1973 only - Sep 30 4:00u 1:00 S
976Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S
977Rule Chile 1987 only - Apr 12 3:00u 0 -
978Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 -
979Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S
980Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S
981Rule Chile 1990 only - Mar 18 3:00u 0 -
982Rule Chile 1990 only - Sep 16 4:00u 1:00 S
983Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 -
984Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S
985Rule Chile 1997 only - Mar 30 3:00u 0 -
986Rule Chile 1998 only - Mar Sun>=9 3:00u 0 -
987Rule Chile 1998 only - Sep 27 4:00u 1:00 S
988Rule Chile 1999 only - Apr 4 3:00u 0 -
989Rule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S
990Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 -
991# N.B.: the end of March 29 in Chile is March 30 in Universal time,
992# which is used below in specifying the transition.
993Rule Chile 2008 only - Mar 30 3:00u 0 -
994Rule Chile 2009 max - Mar Sun>=9 3:00u 0 -
995# IATA SSIM anomalies: (1992-02) says 1992-03-14;
996# (1996-09) says 1998-03-08. Ignore these.
997# Zone NAME GMTOFF RULES FORMAT [UNTIL]
998Zone America/Santiago -4:42:46 - LMT 1890
999 -4:42:46 - SMT 1910 # Santiago Mean Time
1000 -5:00 - CLT 1916 Jul 1 # Chile Time
1001 -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time
1002 -4:00 - CLT 1919 Jul 1 # Chile Time
1003 -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time
1004 -5:00 Chile CL%sT 1947 May 22 # Chile Time
1005 -4:00 Chile CL%sT
1006Zone Pacific/Easter -7:17:44 - LMT 1890
1007 -7:17:28 - EMT 1932 Sep # Easter Mean Time
1008 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time
1009 -6:00 Chile EAS%sT
1010#
1011# Sala y Gomez Island is like Pacific/Easter.
1012# Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
1013# San Felix, and Antarctic bases, are like America/Santiago.
1014
1015# Colombia
1016# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1017Rule CO 1992 only - May 3 0:00 1:00 S
1018Rule CO 1993 only - Apr 4 0:00 0 -
1019# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1020Zone America/Bogota -4:56:20 - LMT 1884 Mar 13
1021 -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time
1022 -5:00 CO CO%sT # Colombia Time
1023# Malpelo, Providencia, San Andres
1024# no information; probably like America/Bogota
1025
1026# Curacao
1027#
1028# From Paul Eggert (2006-03-22):
1029# Shanks & Pottenger say that The Bottom and Philipsburg have been at
1030# -4:00 since standard time was introduced on 1912-03-02; and that
1031# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
1032# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say
1033# Saba Island has been like Curacao.
1034# This all predates our 1970 cutoff, though.
1035#
1036# By July 2007 Curacao and St Maarten are planned to become
1037# associated states within the Netherlands, much like Aruba;
1038# Bonaire, Saba and St Eustatius would become directly part of the
1039# Netherlands as Kingdom Islands. This won't affect their time zones
1040# though, as far as we know.
1041#
1042# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1043Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad
1044 -4:30 - ANT 1965 # Netherlands Antilles Time
1045 -4:00 - AST
1046
1047# Ecuador
1048#
1049# From Paul Eggert (2007-03-04):
1050# Apparently Ecuador had a failed experiment with DST in 1992.
1051# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1052# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1053# talk about "hora Sixto". Leave this alone for now, as we have no data.
1054#
1055# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1056Zone America/Guayaquil -5:19:20 - LMT 1890
1057 -5:14:00 - QMT 1931 # Quito Mean Time
1058 -5:00 - ECT # Ecuador Time
1059Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
1060 -5:00 - ECT 1986
1061 -6:00 - GALT # Galapagos Time
1062
1063# Falklands
1064
1065# From Paul Eggert (2006-03-22):
1066# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1067# the IATA gives 1996-09-08. Go with Shanks & Pottenger.
1068
1069# From Falkland Islands Government Office, London (2001-01-22)
1070# via Jesper Norgaard:
1071# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15
1072# April 2001 and advance one hour to summer time at 2 am on Sunday 2
1073# September. It is anticipated that the clocks will revert back at 2
1074# am on Sunday 21 April 2002 and advance to summer time at 2 am on
1075# Sunday 1 September.
1076
1077# From Rives McDow (2001-02-13):
1078#
1079# I have communicated several times with people there, and the last
1080# time I had communications that was helpful was in 1998. Here is
1081# what was said then:
1082#
1083# "The general rule was that Stanley used daylight saving and the Camp
1084# did not. However for various reasons many people in the Camp have
1085# started to use daylight saving (known locally as 'Stanley Time')
1086# There is no rule as to who uses daylight saving - it is a matter of
1087# personal choice and so it is impossible to draw a map showing who
1088# uses it and who does not. Any list would be out of date as soon as
1089# it was produced. This year daylight saving ended on April 18/19th
1090# and started again on September 12/13th. I do not know what the rule
1091# is, but can find out if you like. We do not change at the same time
1092# as UK or Chile."
1093#
1094# I did have in my notes that the rule was "Second Saturday in Sep at
1095# 0:00 until third Saturday in Apr at 0:00". I think that this does
1096# not agree in some cases with Shanks; is this true?
1097#
1098# Also, there is no mention in the list that some areas in the
1099# Falklands do not use DST. I have found in my communications there
1100# that these areas are on the western half of East Falkland and all of
1101# West Falkland. Stanley is the only place that consistently observes
1102# DST. Again, as in other places in the world, the farmers don't like
1103# it. West Falkland is almost entirely sheep farmers.
1104#
1105# I know one lady there that keeps a list of which farm keeps DST and
1106# which doesn't each year. She runs a shop in Stanley, and says that
1107# the list changes each year. She uses it to communicate to her
1108# customers, catching them when they are home for lunch or dinner.
1109
1110# From Paul Eggert (2001-03-05):
1111# For now, we'll just record the time in Stanley, since we have no
1112# better info.
1113
1114# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1115Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S
1116Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 -
1117Rule Falk 1939 only - Oct 1 0:00 1:00 S
1118Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S
1119Rule Falk 1943 only - Jan 1 0:00 0 -
1120Rule Falk 1983 only - Sep lastSun 0:00 1:00 S
1121Rule Falk 1984 1985 - Apr lastSun 0:00 0 -
1122Rule Falk 1984 only - Sep 16 0:00 1:00 S
1123Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S
1124Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 -
1125Rule Falk 2001 max - Apr Sun>=15 2:00 0 -
1126Rule Falk 2001 max - Sep Sun>=1 2:00 1:00 S
1127# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1128Zone Atlantic/Stanley -3:51:24 - LMT 1890
1129 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time
1130 -4:00 Falk FK%sT 1983 May # Falkland Is Time
1131 -3:00 Falk FK%sT 1985 Sep 15
1132 -4:00 Falk FK%sT
1133
1134# French Guiana
1135# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1136Zone America/Cayenne -3:29:20 - LMT 1911 Jul
1137 -4:00 - GFT 1967 Oct # French Guiana Time
1138 -3:00 - GFT
1139
1140# Guyana
1141# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1142Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
1143 -3:45 - GBGT 1966 May 26 # Br Guiana Time
1144 -3:45 - GYT 1975 Jul 31 # Guyana Time
1145 -3:00 - GYT 1991
1146# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
1147 -4:00 - GYT
1148
1149# Paraguay
1150# From Paul Eggert (2006-03-22):
1151# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,
1152# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999
1153# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
1154# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1155Rule Para 1975 1988 - Oct 1 0:00 1:00 S
1156Rule Para 1975 1978 - Mar 1 0:00 0 -
1157Rule Para 1979 1991 - Apr 1 0:00 0 -
1158Rule Para 1989 only - Oct 22 0:00 1:00 S
1159Rule Para 1990 only - Oct 1 0:00 1:00 S
1160Rule Para 1991 only - Oct 6 0:00 1:00 S
1161Rule Para 1992 only - Mar 1 0:00 0 -
1162Rule Para 1992 only - Oct 5 0:00 1:00 S
1163Rule Para 1993 only - Mar 31 0:00 0 -
1164Rule Para 1993 1995 - Oct 1 0:00 1:00 S
1165Rule Para 1994 1995 - Feb lastSun 0:00 0 -
1166Rule Para 1996 only - Mar 1 0:00 0 -
1167# IATA SSIM (2000-02) says 1999-10-10; ignore this for now.
1168# From Steffen Thorsen (2000-10-02):
1169# I have three independent reports that Paraguay changed to DST this Sunday
1170# (10-01).
1171#
1172# Translated by Gwillim Law (2001-02-27) from
1173# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm">
1174# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)
1175# </a>:
1176# Starting at 0:00 today, the clock will be set forward 60 minutes, in
1177# fulfillment of Decree No. 7,273 of the Executive Power.... The time change
1178# system has been operating for several years. Formerly there was a separate
1179# decree each year; the new law has the same effect, but permanently. Every
1180# year, the time will change on the first Sunday of October; likewise, the
1181# clock will be set back on the first Sunday of March.
1182#
1183Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S
1184# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.
1185Rule Para 1997 only - Feb lastSun 0:00 0 -
1186# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
1187# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
1188Rule Para 1998 2001 - Mar Sun>=1 0:00 0 -
1189# From Rives McDow (2002-02-28):
1190# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the
1191# dst method to be from the first Sunday in September to the first Sunday in
1192# April.
1193Rule Para 2002 2004 - Apr Sun>=1 0:00 0 -
1194Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S
1195#
1196# From Jesper Norgaard Welen (2005-01-02):
1197# There are several sources that claim that Paraguay made
1198# a timezone rule change in autumn 2004.
1199# From Steffen Thorsen (2005-01-05):
1200# Decree 1,867 (2004-03-05)
1201# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
1202# <http://www.presidencia.gov.py/decretos/D1867.pdf>
1203Rule Para 2004 max - Oct Sun>=15 0:00 1:00 S
1204Rule Para 2005 max - Mar Sun>=8 0:00 0 -
1205
1206# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1207Zone America/Asuncion -3:50:40 - LMT 1890
1208 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
1209 -4:00 - PYT 1972 Oct # Paraguay Time
1210 -3:00 - PYT 1974 Apr
1211 -4:00 Para PY%sT
1212
1213# Peru
1214#
1215# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
1216# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
1217# When we were in Peru in 1985-1986, they apparently switched over
1218# sometime between December 29 and January 3 while we were on the Amazon.
1219#
1220# From Paul Eggert (2006-03-22):
1221# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987.
1222
1223# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1224Rule Peru 1938 only - Jan 1 0:00 1:00 S
1225Rule Peru 1938 only - Apr 1 0:00 0 -
1226Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
1227Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
1228Rule Peru 1986 1987 - Jan 1 0:00 1:00 S
1229Rule Peru 1986 1987 - Apr 1 0:00 0 -
1230Rule Peru 1990 only - Jan 1 0:00 1:00 S
1231Rule Peru 1990 only - Apr 1 0:00 0 -
1232# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
1233Rule Peru 1994 only - Jan 1 0:00 1:00 S
1234Rule Peru 1994 only - Apr 1 0:00 0 -
1235# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1236Zone America/Lima -5:08:12 - LMT 1890
1237 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
1238 -5:00 Peru PE%sT # Peru Time
1239
1240# South Georgia
1241# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1242Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
1243 -2:00 - GST # South Georgia Time
1244
1245# South Sandwich Is
1246# uninhabited; scientific personnel have wintered
1247
1248# Suriname
1249# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1250Zone America/Paramaribo -3:40:40 - LMT 1911
1251 -3:40:52 - PMT 1935 # Paramaribo Mean Time
1252 -3:40:36 - PMT 1945 Oct # The capital moved?
1253 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time
1254 -3:30 - SRT 1984 Oct # Suriname Time
1255 -3:00 - SRT
1256
1257# Trinidad and Tobago
1258# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1259Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
1260 -4:00 - AST
1261
1262# Uruguay
1263# From Paul Eggert (1993-11-18):
1264# Uruguay wins the prize for the strangest peacetime manipulation of the rules.
1265# From Shanks & Pottenger:
1266# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1267# Whitman gives 1923 Oct 1; go with Shanks & Pottenger.
1268Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS
1269Rule Uruguay 1924 1926 - Apr 1 0:00 0 -
1270Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS
1271Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS
1272# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.
1273Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 -
1274Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS
1275Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 -
1276# Whitman gives 1937 Oct 3; go with Shanks & Pottenger.
1277Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS
1278# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
1279# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger.
1280Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS
1281Rule Uruguay 1942 only - Jan 1 0:00 0 -
1282Rule Uruguay 1942 only - Dec 14 0:00 1:00 S
1283Rule Uruguay 1943 only - Mar 14 0:00 0 -
1284Rule Uruguay 1959 only - May 24 0:00 1:00 S
1285Rule Uruguay 1959 only - Nov 15 0:00 0 -
1286Rule Uruguay 1960 only - Jan 17 0:00 1:00 S
1287Rule Uruguay 1960 only - Mar 6 0:00 0 -
1288Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S
1289Rule Uruguay 1965 only - Sep 26 0:00 0 -
1290Rule Uruguay 1966 1967 - Oct 31 0:00 0 -
1291Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS
1292Rule Uruguay 1968 1970 - Dec 2 0:00 0 -
1293Rule Uruguay 1972 only - Apr 24 0:00 1:00 S
1294Rule Uruguay 1972 only - Aug 15 0:00 0 -
1295Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS
1296Rule Uruguay 1974 only - Dec 22 0:00 1:00 S
1297Rule Uruguay 1976 only - Oct 1 0:00 0 -
1298Rule Uruguay 1977 only - Dec 4 0:00 1:00 S
1299Rule Uruguay 1978 only - Apr 1 0:00 0 -
1300Rule Uruguay 1979 only - Oct 1 0:00 1:00 S
1301Rule Uruguay 1980 only - May 1 0:00 0 -
1302Rule Uruguay 1987 only - Dec 14 0:00 1:00 S
1303Rule Uruguay 1988 only - Mar 14 0:00 0 -
1304Rule Uruguay 1988 only - Dec 11 0:00 1:00 S
1305Rule Uruguay 1989 only - Mar 12 0:00 0 -
1306Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
1307# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,
1308# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
1309Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
1310Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
1311Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
1312Rule Uruguay 1993 only - Feb 28 0:00 0 -
1313# From Eduardo Cota (2004-09-20):
1314# The uruguayan government has decreed a change in the local time....
1315# http://www.presidencia.gub.uy/decretos/2004091502.htm
1316Rule Uruguay 2004 only - Sep 19 0:00 1:00 S
1317# From Steffen Thorsen (2005-03-11):
1318# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to
1319# save energy ... it was postponed two weeks....
1320# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm
1321Rule Uruguay 2005 only - Mar 27 2:00 0 -
1322# From Eduardo Cota (2005-09-27):
1323# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF
1324# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at
1325# 02:00 local time, official time in Uruguay will be at GMT -2.
1326Rule Uruguay 2005 only - Oct 9 2:00 1:00 S
1327Rule Uruguay 2006 only - Mar 12 2:00 0 -
1328# From Jesper Norgaard Welen (2006-09-06):
1329# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF
1330Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S
1331Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 -
1332# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1333Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1334 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1335 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
1336 -3:00 Uruguay UY%sT
1337
1338# Venezuela
1339#
1340# From John Stainforth (2007-11-28):
1341# ... the change for Venezuela originally expected for 2007-12-31 has
1342# been brought forward to 2007-12-09. The official announcement was
1343# published today in the "Gaceta Oficial de la Republica Bolivariana
1344# de Venezuela, numero 38.819" (official document for all laws or
1345# resolution publication)
1346# http://www.globovision.com/news.php?nid=72208
1347
1348# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1349Zone America/Caracas -4:27:44 - LMT 1890
1350 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1351 -4:30 - VET 1965 # Venezuela Time
1352 -4:00 - VET 2007 Dec 9 03:00
1353 -4:30 - VET
|