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1# This file is in the public domain, so clarified as of
2# 2009-05-17 by Arthur David Olson.
3
4# This file 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@iana.org for general use in the future). For more, please see
7# the file CONTRIBUTING in the tz distribution.
8
1# This file is in the public domain, so clarified as of
2# 2009-05-17 by Arthur David Olson.
3
4# This file 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@iana.org for general use in the future). For more, please see
7# the file CONTRIBUTING in the tz distribution.
8
9# From Paul Eggert (2014-10-31):
9# From Paul Eggert (2016-12-05):
10#
11# Unless otherwise specified, the source for data through 1990 is:
12# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
13# San Diego: ACS Publications, Inc. (2003).
14# Unfortunately this book contains many errors and cites no sources.
15#
10#
11# Unless otherwise specified, the source for data through 1990 is:
12# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
13# San Diego: ACS Publications, Inc. (2003).
14# Unfortunately this book contains many errors and cites no sources.
15#
16# Gwillim Law writes that a good source
17# for recent time zone data is the International Air Transport
16# Many years ago Gwillim Law wrote that a good source
17# for time zone data was the International Air Transport
18# Association's Standard Schedules Information Manual (IATA SSIM),
19# published semiannually. Law sent in several helpful summaries
20# of the IATA's data after 1990. Except where otherwise noted,
21# IATA SSIM is the source for entries after 1990.
22#
23# For data circa 1899, a common source is:
24# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
18# Association's Standard Schedules Information Manual (IATA SSIM),
19# published semiannually. Law sent in several helpful summaries
20# of the IATA's data after 1990. Except where otherwise noted,
21# IATA SSIM is the source for entries after 1990.
22#
23# For data circa 1899, a common source is:
24# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
25# http://www.jstor.org/stable/1774359
25# https://www.jstor.org/stable/1774359
26#
26#
27# Earlier editions of these tables used the North American style (e.g. ARST and
28# ARDT for Argentine Standard and Daylight Time), but the following quote
29# suggests that it's better to use European style (e.g. ART and ARST).
30# I suggest the use of _Summer time_ instead of the more cumbersome
31# _daylight-saving time_. _Summer time_ seems to be in general use
32# in Europe and South America.
33# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
34# H L Mencken, _The American Language: Supplement I_ (1960), p 466
35#
36# Earlier editions of these tables also used the North American style
37# for time zones in Brazil, but this was incorrect, as Brazilians say
38# "summer time". Reinaldo Goulart, a S��o Paulo businessman active in
39# the railroad sector, writes (1999-07-06):
40# The subject of time zones is currently a matter of discussion/debate in
41# Brazil. Let's say that "the Bras��lia time" is considered the
42# "official time" because Bras��lia is the capital city.
43# The other three time zones are called "Bras��lia time "minus one" or
44# "plus one" or "plus two". As far as I know there is no such
45# name/designation as "Eastern Time" or "Central Time".
46# So I invented the following (English-language) abbreviations for now.
47# Corrections are welcome!
48# std dst
49# -2:00 FNT FNST Fernando de Noronha
50# -3:00 BRT BRST Bras��lia
51# -4:00 AMT AMST Amazon
52# -5:00 ACT ACST Acre
27# These tables use numeric abbreviations like -03 and -0330 for
28# integer hour and minute UTC offsets. Although earlier editions used
29# alphabetic time zone abbreviations, these abbreviations were
30# invented and did not reflect common practice.
53
54###############################################################################
55
56###############################################################################
57
58# Argentina
59
60# From Bob Devine (1988-01-28):

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282#
283# Provincia argentina retrasa reloj y marca diferencia con resto del pa��s
284# (Argentine Province delayed clock and mark difference with the rest of the
285# country)
286# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
287#
288# Es inminente que en San Luis atrasen una hora los relojes
289# (It is imminent in San Luis clocks one hour delay)
31
32###############################################################################
33
34###############################################################################
35
36# Argentina
37
38# From Bob Devine (1988-01-28):

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260#
261# Provincia argentina retrasa reloj y marca diferencia con resto del pa��s
262# (Argentine Province delayed clock and mark difference with the rest of the
263# country)
264# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
265#
266# Es inminente que en San Luis atrasen una hora los relojes
267# (It is imminent in San Luis clocks one hour delay)
290# http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html
291# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
268# https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html
269# http://www.worldtimezone.com/dst_news/dst_news_argentina02.html
292
293# From Jesper N��rgaard Welen (2008-01-18):
294# The page of the San Luis provincial government
295# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
296# confirms what Alex Krivenyshev has earlier sent to the tz
297# emailing list about that San Luis plans to return to standard
298# time much earlier than the rest of the country. It also
299# confirms that upon request the provinces San Juan and Mendoza

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379# change in 2007/2008, were made according to the Federal Law and Decrees
380# that did so on the 3rd Sunday of October and March.
381#
382# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday
383# (October 11th) at 0:00.
384#
385# So I guess a new set of rules, besides "Arg", must be made and the last
386# America/Argentina/San_Luis entries should change to use these...
270
271# From Jesper N��rgaard Welen (2008-01-18):
272# The page of the San Luis provincial government
273# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
274# confirms what Alex Krivenyshev has earlier sent to the tz
275# emailing list about that San Luis plans to return to standard
276# time much earlier than the rest of the country. It also
277# confirms that upon request the provinces San Juan and Mendoza

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357# change in 2007/2008, were made according to the Federal Law and Decrees
358# that did so on the 3rd Sunday of October and March.
359#
360# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday
361# (October 11th) at 0:00.
362#
363# So I guess a new set of rules, besides "Arg", must be made and the last
364# America/Argentina/San_Luis entries should change to use these...
387#
388# I'm enclosing a patch that does what I say... regretfully, the San Luis
389# timezone must be called "WART/WARST" even when most of the time (like,
390# right now) WARST == ART... that is, since last Sunday, all the country
391# is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest
392# of the country calls it "ART".
393# ...
394
395# From Alexander Krivenyshev (2010-04-09):
396# According to news reports from El Diario de la Rep��blica Province San
397# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
398# after April 11, 2010 - will continue to have same time as rest of
399# Argentina (UTC-3) (no DST).
400#

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408# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
409# rules...San Luis is still using "Western ARgentina Time" and it got
410# stuck on Summer daylight savings time even though the summer is over.
411
412# From Paul Eggert (2013-09-05):
413# Perhaps San Luis operates on the legal fiction that it is at -04
414# with perpetual summer time, but ordinary usage typically seems to
415# just say it's at -03; see, for example,
365# ...
366
367# From Alexander Krivenyshev (2010-04-09):
368# According to news reports from El Diario de la Rep��blica Province San
369# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
370# after April 11, 2010 - will continue to have same time as rest of
371# Argentina (UTC-3) (no DST).
372#

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380# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
381# rules...San Luis is still using "Western ARgentina Time" and it got
382# stuck on Summer daylight savings time even though the summer is over.
383
384# From Paul Eggert (2013-09-05):
385# Perhaps San Luis operates on the legal fiction that it is at -04
386# with perpetual summer time, but ordinary usage typically seems to
387# just say it's at -03; see, for example,
416# http://es.wikipedia.org/wiki/Hora_oficial_argentina
388# https://es.wikipedia.org/wiki/Hora_oficial_argentina
417# We've documented similar situations as being plain changes to
418# standard time, so let's do that here too. This does not change UTC
419# offsets, only tm_isdst and the time zone abbreviations. One minor
420# plus is that this silences a zic complaint that there's no POSIX TZ
421# setting for time stamps past 2038.
422
423# From Paul Eggert (2013-02-21):
424# Milne says C��rdoba time was -4:16:48.2. Round to the nearest second.
425
426# Zone NAME GMTOFF RULES FORMAT [UNTIL]
427#
428# Buenos Aires (BA), Capital Federal (CF),
429Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
430 -4:16:48 - CMT 1920 May # C��rdoba Mean Time
389# We've documented similar situations as being plain changes to
390# standard time, so let's do that here too. This does not change UTC
391# offsets, only tm_isdst and the time zone abbreviations. One minor
392# plus is that this silences a zic complaint that there's no POSIX TZ
393# setting for time stamps past 2038.
394
395# From Paul Eggert (2013-02-21):
396# Milne says C��rdoba time was -4:16:48.2. Round to the nearest second.
397
398# Zone NAME GMTOFF RULES FORMAT [UNTIL]
399#
400# Buenos Aires (BA), Capital Federal (CF),
401Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
402 -4:16:48 - CMT 1920 May # C��rdoba Mean Time
431 -4:00 - ART 1930 Dec
432 -4:00 Arg AR%sT 1969 Oct 5
433 -3:00 Arg AR%sT 1999 Oct 3
434 -4:00 Arg AR%sT 2000 Mar 3
435 -3:00 Arg AR%sT
403 -4:00 - -04 1930 Dec
404 -4:00 Arg -04/-03 1969 Oct 5
405 -3:00 Arg -03/-02 1999 Oct 3
406 -4:00 Arg -04/-03 2000 Mar 3
407 -3:00 Arg -03/-02
436#
437# C��rdoba (CB), Santa Fe (SF), Entre R��os (ER), Corrientes (CN), Misiones (MN),
438# Chaco (CC), Formosa (FM), Santiago del Estero (SE)
439#
440# Shanks & Pottenger also make the following claims, which we haven't verified:
441# - Formosa switched to -3:00 on 1991-01-07.
442# - Misiones switched to -3:00 on 1990-12-29.
443# - Chaco switched to -3:00 on 1991-01-04.
444# - Santiago del Estero switched to -4:00 on 1991-04-01,
445# then to -3:00 on 1991-04-26.
446#
447Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
448 -4:16:48 - CMT 1920 May
408#
409# C��rdoba (CB), Santa Fe (SF), Entre R��os (ER), Corrientes (CN), Misiones (MN),
410# Chaco (CC), Formosa (FM), Santiago del Estero (SE)
411#
412# Shanks & Pottenger also make the following claims, which we haven't verified:
413# - Formosa switched to -3:00 on 1991-01-07.
414# - Misiones switched to -3:00 on 1990-12-29.
415# - Chaco switched to -3:00 on 1991-01-04.
416# - Santiago del Estero switched to -4:00 on 1991-04-01,
417# then to -3:00 on 1991-04-26.
418#
419Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
420 -4:16:48 - CMT 1920 May
449 -4:00 - ART 1930 Dec
450 -4:00 Arg AR%sT 1969 Oct 5
451 -3:00 Arg AR%sT 1991 Mar 3
452 -4:00 - WART 1991 Oct 20
453 -3:00 Arg AR%sT 1999 Oct 3
454 -4:00 Arg AR%sT 2000 Mar 3
455 -3:00 Arg AR%sT
421 -4:00 - -04 1930 Dec
422 -4:00 Arg -04/-03 1969 Oct 5
423 -3:00 Arg -03/-02 1991 Mar 3
424 -4:00 - -04 1991 Oct 20
425 -3:00 Arg -03/-02 1999 Oct 3
426 -4:00 Arg -04/-03 2000 Mar 3
427 -3:00 Arg -03/-02
456#
457# Salta (SA), La Pampa (LP), Neuqu��n (NQ), Rio Negro (RN)
458Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31
459 -4:16:48 - CMT 1920 May
428#
429# Salta (SA), La Pampa (LP), Neuqu��n (NQ), Rio Negro (RN)
430Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31
431 -4:16:48 - CMT 1920 May
460 -4:00 - ART 1930 Dec
461 -4:00 Arg AR%sT 1969 Oct 5
462 -3:00 Arg AR%sT 1991 Mar 3
463 -4:00 - WART 1991 Oct 20
464 -3:00 Arg AR%sT 1999 Oct 3
465 -4:00 Arg AR%sT 2000 Mar 3
466 -3:00 Arg AR%sT 2008 Oct 18
467 -3:00 - ART
432 -4:00 - -04 1930 Dec
433 -4:00 Arg -04/-03 1969 Oct 5
434 -3:00 Arg -03/-02 1991 Mar 3
435 -4:00 - -04 1991 Oct 20
436 -3:00 Arg -03/-02 1999 Oct 3
437 -4:00 Arg -04/-03 2000 Mar 3
438 -3:00 Arg -03/-02 2008 Oct 18
439 -3:00 - -03
468#
469# Tucum��n (TM)
470Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
471 -4:16:48 - CMT 1920 May
440#
441# Tucum��n (TM)
442Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
443 -4:16:48 - CMT 1920 May
472 -4:00 - ART 1930 Dec
473 -4:00 Arg AR%sT 1969 Oct 5
474 -3:00 Arg AR%sT 1991 Mar 3
475 -4:00 - WART 1991 Oct 20
476 -3:00 Arg AR%sT 1999 Oct 3
477 -4:00 Arg AR%sT 2000 Mar 3
478 -3:00 - ART 2004 Jun 1
479 -4:00 - WART 2004 Jun 13
480 -3:00 Arg AR%sT
444 -4:00 - -04 1930 Dec
445 -4:00 Arg -04/-03 1969 Oct 5
446 -3:00 Arg -03/-02 1991 Mar 3
447 -4:00 - -04 1991 Oct 20
448 -3:00 Arg -03/-02 1999 Oct 3
449 -4:00 Arg -04/-03 2000 Mar 3
450 -3:00 - -03 2004 Jun 1
451 -4:00 - -04 2004 Jun 13
452 -3:00 Arg -03/-02
481#
482# La Rioja (LR)
483Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
484 -4:16:48 - CMT 1920 May
453#
454# La Rioja (LR)
455Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
456 -4:16:48 - CMT 1920 May
485 -4:00 - ART 1930 Dec
486 -4:00 Arg AR%sT 1969 Oct 5
487 -3:00 Arg AR%sT 1991 Mar 1
488 -4:00 - WART 1991 May 7
489 -3:00 Arg AR%sT 1999 Oct 3
490 -4:00 Arg AR%sT 2000 Mar 3
491 -3:00 - ART 2004 Jun 1
492 -4:00 - WART 2004 Jun 20
493 -3:00 Arg AR%sT 2008 Oct 18
494 -3:00 - ART
457 -4:00 - -04 1930 Dec
458 -4:00 Arg -04/-03 1969 Oct 5
459 -3:00 Arg -03/-02 1991 Mar 1
460 -4:00 - -04 1991 May 7
461 -3:00 Arg -03/-02 1999 Oct 3
462 -4:00 Arg -04/-03 2000 Mar 3
463 -3:00 - -03 2004 Jun 1
464 -4:00 - -04 2004 Jun 20
465 -3:00 Arg -03/-02 2008 Oct 18
466 -3:00 - -03
495#
496# San Juan (SJ)
497Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
498 -4:16:48 - CMT 1920 May
467#
468# San Juan (SJ)
469Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
470 -4:16:48 - CMT 1920 May
499 -4:00 - ART 1930 Dec
500 -4:00 Arg AR%sT 1969 Oct 5
501 -3:00 Arg AR%sT 1991 Mar 1
502 -4:00 - WART 1991 May 7
503 -3:00 Arg AR%sT 1999 Oct 3
504 -4:00 Arg AR%sT 2000 Mar 3
505 -3:00 - ART 2004 May 31
506 -4:00 - WART 2004 Jul 25
507 -3:00 Arg AR%sT 2008 Oct 18
508 -3:00 - ART
471 -4:00 - -04 1930 Dec
472 -4:00 Arg -04/-03 1969 Oct 5
473 -3:00 Arg -03/-02 1991 Mar 1
474 -4:00 - -04 1991 May 7
475 -3:00 Arg -03/-02 1999 Oct 3
476 -4:00 Arg -04/-03 2000 Mar 3
477 -3:00 - -03 2004 May 31
478 -4:00 - -04 2004 Jul 25
479 -3:00 Arg -03/-02 2008 Oct 18
480 -3:00 - -03
509#
510# Jujuy (JY)
511Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
512 -4:16:48 - CMT 1920 May
481#
482# Jujuy (JY)
483Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
484 -4:16:48 - CMT 1920 May
513 -4:00 - ART 1930 Dec
514 -4:00 Arg AR%sT 1969 Oct 5
515 -3:00 Arg AR%sT 1990 Mar 4
516 -4:00 - WART 1990 Oct 28
517 -4:00 1:00 WARST 1991 Mar 17
518 -4:00 - WART 1991 Oct 6
519 -3:00 1:00 ARST 1992
520 -3:00 Arg AR%sT 1999 Oct 3
521 -4:00 Arg AR%sT 2000 Mar 3
522 -3:00 Arg AR%sT 2008 Oct 18
523 -3:00 - ART
485 -4:00 - -04 1930 Dec
486 -4:00 Arg -04/-03 1969 Oct 5
487 -3:00 Arg -03/-02 1990 Mar 4
488 -4:00 - -04 1990 Oct 28
489 -4:00 1:00 -03 1991 Mar 17
490 -4:00 - -04 1991 Oct 6
491 -3:00 1:00 -02 1992
492 -3:00 Arg -03/-02 1999 Oct 3
493 -4:00 Arg -04/-03 2000 Mar 3
494 -3:00 Arg -03/-02 2008 Oct 18
495 -3:00 - -03
524#
525# Catamarca (CT), Chubut (CH)
526Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
527 -4:16:48 - CMT 1920 May
496#
497# Catamarca (CT), Chubut (CH)
498Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
499 -4:16:48 - CMT 1920 May
528 -4:00 - ART 1930 Dec
529 -4:00 Arg AR%sT 1969 Oct 5
530 -3:00 Arg AR%sT 1991 Mar 3
531 -4:00 - WART 1991 Oct 20
532 -3:00 Arg AR%sT 1999 Oct 3
533 -4:00 Arg AR%sT 2000 Mar 3
534 -3:00 - ART 2004 Jun 1
535 -4:00 - WART 2004 Jun 20
536 -3:00 Arg AR%sT 2008 Oct 18
537 -3:00 - ART
500 -4:00 - -04 1930 Dec
501 -4:00 Arg -04/-03 1969 Oct 5
502 -3:00 Arg -03/-02 1991 Mar 3
503 -4:00 - -04 1991 Oct 20
504 -3:00 Arg -03/-02 1999 Oct 3
505 -4:00 Arg -04/-03 2000 Mar 3
506 -3:00 - -03 2004 Jun 1
507 -4:00 - -04 2004 Jun 20
508 -3:00 Arg -03/-02 2008 Oct 18
509 -3:00 - -03
538#
539# Mendoza (MZ)
540Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
541 -4:16:48 - CMT 1920 May
510#
511# Mendoza (MZ)
512Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
513 -4:16:48 - CMT 1920 May
542 -4:00 - ART 1930 Dec
543 -4:00 Arg AR%sT 1969 Oct 5
544 -3:00 Arg AR%sT 1990 Mar 4
545 -4:00 - WART 1990 Oct 15
546 -4:00 1:00 WARST 1991 Mar 1
547 -4:00 - WART 1991 Oct 15
548 -4:00 1:00 WARST 1992 Mar 1
549 -4:00 - WART 1992 Oct 18
550 -3:00 Arg AR%sT 1999 Oct 3
551 -4:00 Arg AR%sT 2000 Mar 3
552 -3:00 - ART 2004 May 23
553 -4:00 - WART 2004 Sep 26
554 -3:00 Arg AR%sT 2008 Oct 18
555 -3:00 - ART
514 -4:00 - -04 1930 Dec
515 -4:00 Arg -04/-03 1969 Oct 5
516 -3:00 Arg -03/-02 1990 Mar 4
517 -4:00 - -04 1990 Oct 15
518 -4:00 1:00 -03 1991 Mar 1
519 -4:00 - -04 1991 Oct 15
520 -4:00 1:00 -03 1992 Mar 1
521 -4:00 - -04 1992 Oct 18
522 -3:00 Arg -03/-02 1999 Oct 3
523 -4:00 Arg -04/-03 2000 Mar 3
524 -3:00 - -03 2004 May 23
525 -4:00 - -04 2004 Sep 26
526 -3:00 Arg -03/-02 2008 Oct 18
527 -3:00 - -03
556#
557# San Luis (SL)
558
559Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 -
560Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S
561
562Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
563 -4:16:48 - CMT 1920 May
528#
529# San Luis (SL)
530
531Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 -
532Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S
533
534Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
535 -4:16:48 - CMT 1920 May
564 -4:00 - ART 1930 Dec
565 -4:00 Arg AR%sT 1969 Oct 5
566 -3:00 Arg AR%sT 1990
567 -3:00 1:00 ARST 1990 Mar 14
568 -4:00 - WART 1990 Oct 15
569 -4:00 1:00 WARST 1991 Mar 1
570 -4:00 - WART 1991 Jun 1
571 -3:00 - ART 1999 Oct 3
572 -4:00 1:00 WARST 2000 Mar 3
573 -3:00 - ART 2004 May 31
574 -4:00 - WART 2004 Jul 25
575 -3:00 Arg AR%sT 2008 Jan 21
576 -4:00 SanLuis WAR%sT 2009 Oct 11
577 -3:00 - ART
536 -4:00 - -04 1930 Dec
537 -4:00 Arg -04/-03 1969 Oct 5
538 -3:00 Arg -03/-02 1990
539 -3:00 1:00 -02 1990 Mar 14
540 -4:00 - -04 1990 Oct 15
541 -4:00 1:00 -03 1991 Mar 1
542 -4:00 - -04 1991 Jun 1
543 -3:00 - -03 1999 Oct 3
544 -4:00 1:00 -03 2000 Mar 3
545 -3:00 - -03 2004 May 31
546 -4:00 - -04 2004 Jul 25
547 -3:00 Arg -03/-02 2008 Jan 21
548 -4:00 SanLuis -04/-03 2009 Oct 11
549 -3:00 - -03
578#
579# Santa Cruz (SC)
580Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
550#
551# Santa Cruz (SC)
552Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
581 -4:16:48 - CMT 1920 May # C��rdoba Mean Time
582 -4:00 - ART 1930 Dec
583 -4:00 Arg AR%sT 1969 Oct 5
584 -3:00 Arg AR%sT 1999 Oct 3
585 -4:00 Arg AR%sT 2000 Mar 3
586 -3:00 - ART 2004 Jun 1
587 -4:00 - WART 2004 Jun 20
588 -3:00 Arg AR%sT 2008 Oct 18
589 -3:00 - ART
553 -4:16:48 - CMT 1920 May
554 -4:00 - -04 1930 Dec
555 -4:00 Arg -04/-03 1969 Oct 5
556 -3:00 Arg -03/-02 1999 Oct 3
557 -4:00 Arg -04/-03 2000 Mar 3
558 -3:00 - -03 2004 Jun 1
559 -4:00 - -04 2004 Jun 20
560 -3:00 Arg -03/-02 2008 Oct 18
561 -3:00 - -03
590#
591# Tierra del Fuego, Ant��rtida e Islas del Atl��ntico Sur (TF)
592Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
562#
563# Tierra del Fuego, Ant��rtida e Islas del Atl��ntico Sur (TF)
564Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
593 -4:16:48 - CMT 1920 May # C��rdoba Mean Time
594 -4:00 - ART 1930 Dec
595 -4:00 Arg AR%sT 1969 Oct 5
596 -3:00 Arg AR%sT 1999 Oct 3
597 -4:00 Arg AR%sT 2000 Mar 3
598 -3:00 - ART 2004 May 30
599 -4:00 - WART 2004 Jun 20
600 -3:00 Arg AR%sT 2008 Oct 18
601 -3:00 - ART
565 -4:16:48 - CMT 1920 May
566 -4:00 - -04 1930 Dec
567 -4:00 Arg -04/-03 1969 Oct 5
568 -3:00 Arg -03/-02 1999 Oct 3
569 -4:00 Arg -04/-03 2000 Mar 3
570 -3:00 - -03 2004 May 30
571 -4:00 - -04 2004 Jun 20
572 -3:00 Arg -03/-02 2008 Oct 18
573 -3:00 - -03
602
603# Aruba
604Link America/Curacao America/Aruba
605
606# Bolivia
607# Zone NAME GMTOFF RULES FORMAT [UNTIL]
608Zone America/La_Paz -4:32:36 - LMT 1890
609 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT
610 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
574
575# Aruba
576Link America/Curacao America/Aruba
577
578# Bolivia
579# Zone NAME GMTOFF RULES FORMAT [UNTIL]
580Zone America/La_Paz -4:32:36 - LMT 1890
581 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT
582 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
611 -4:00 - BOT # Bolivia Time
583 -4:00 - -04
612
613# Brazil
614
615# From Paul Eggert (1993-11-18):
616# The mayor of Rio recently attempted to change the time zone rules
617# just in his city, in order to leave more summer time for the tourist trade.
618# The rule change lasted only part of the day;
619# the federal government refused to follow the city's rules, and business

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739# by going to
740# http://www.mme.gov.br/first
741#
742# One example link that works directly:
743# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54
744# (Portuguese)
745#
746# We have a written a short article about it as well:
584
585# Brazil
586
587# From Paul Eggert (1993-11-18):
588# The mayor of Rio recently attempted to change the time zone rules
589# just in his city, in order to leave more summer time for the tourist trade.
590# The rule change lasted only part of the day;
591# the federal government refused to follow the city's rules, and business

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711# by going to
712# http://www.mme.gov.br/first
713#
714# One example link that works directly:
715# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54
716# (Portuguese)
717#
718# We have a written a short article about it as well:
747# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
719# https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
748#
749# From Alexander Krivenyshev (2011-10-04):
750# State Bahia will return to Daylight savings time this year after 8 years off.
751# The announcement was made by Governor Jaques Wagner in an interview to a
752# television station in Salvador.
753
754# In Portuguese:
755# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
720#
721# From Alexander Krivenyshev (2011-10-04):
722# State Bahia will return to Daylight savings time this year after 8 years off.
723# The announcement was made by Governor Jaques Wagner in an interview to a
724# television station in Salvador.
725
726# In Portuguese:
727# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
756# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
728# https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
757
758# From Guilherme Bernardes Rodrigues (2011-10-07):
759# There is news in the media, however there is still no decree about it.
760# I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the
761# official agency about time in Brazil, and she confirmed that the old rule is
762# still in force.
763
764# From Guilherme Bernardes Rodrigues (2011-10-14)

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774# From Kelley Cook (2012-10-16):
775# The governor of state of Bahia in Brazil announced on Thursday that
776# due to public pressure, he is reversing the DST policy they implemented
777# last year and will not be going to Summer Time on October 21st....
778# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
779
780# From Rodrigo Severo (2012-10-16):
781# Tocantins state will have DST.
729
730# From Guilherme Bernardes Rodrigues (2011-10-07):
731# There is news in the media, however there is still no decree about it.
732# I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the
733# official agency about time in Brazil, and she confirmed that the old rule is
734# still in force.
735
736# From Guilherme Bernardes Rodrigues (2011-10-14)

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746# From Kelley Cook (2012-10-16):
747# The governor of state of Bahia in Brazil announced on Thursday that
748# due to public pressure, he is reversing the DST policy they implemented
749# last year and will not be going to Summer Time on October 21st....
750# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
751
752# From Rodrigo Severo (2012-10-16):
753# Tocantins state will have DST.
782# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
754# https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
783
784# From Steffen Thorsen (2013-09-20):
785# Tocantins in Brazil is very likely not to observe DST from October....
786# http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto
787# We will keep this article updated when this is confirmed:
755
756# From Steffen Thorsen (2013-09-20):
757# Tocantins in Brazil is very likely not to observe DST from October....
758# http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto
759# We will keep this article updated when this is confirmed:
788# http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
760# https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
789
790# From Steffen Thorsen (2013-10-17):
761
762# From Steffen Thorsen (2013-10-17):
791# http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html
763# https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html
792# Senator Jorge Viana announced that Acre will change time zone on November 10.
793# He did not specify the time of the change, nor if western parts of Amazonas
794# will change as well.
795#
796# From Paul Eggert (2013-10-17):
797# For now, assume western Amazonas will change as well.
798
799# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S

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955
956# The latest ruleset listed above says that the following states observe DST:
957# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
958
959# Zone NAME GMTOFF RULES FORMAT [UNTIL]
960#
961# Fernando de Noronha (administratively part of PE)
962Zone America/Noronha -2:09:40 - LMT 1914
764# Senator Jorge Viana announced that Acre will change time zone on November 10.
765# He did not specify the time of the change, nor if western parts of Amazonas
766# will change as well.
767#
768# From Paul Eggert (2013-10-17):
769# For now, assume western Amazonas will change as well.
770
771# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S

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927
928# The latest ruleset listed above says that the following states observe DST:
929# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
930
931# Zone NAME GMTOFF RULES FORMAT [UNTIL]
932#
933# Fernando de Noronha (administratively part of PE)
934Zone America/Noronha -2:09:40 - LMT 1914
963 -2:00 Brazil FN%sT 1990 Sep 17
964 -2:00 - FNT 1999 Sep 30
965 -2:00 Brazil FN%sT 2000 Oct 15
966 -2:00 - FNT 2001 Sep 13
967 -2:00 Brazil FN%sT 2002 Oct 1
968 -2:00 - FNT
935 -2:00 Brazil -02/-01 1990 Sep 17
936 -2:00 - -02 1999 Sep 30
937 -2:00 Brazil -02/-01 2000 Oct 15
938 -2:00 - -02 2001 Sep 13
939 -2:00 Brazil -02/-01 2002 Oct 1
940 -2:00 - -02
969# Other Atlantic islands have no permanent settlement.
970# These include Trindade and Martim Vaz (administratively part of ES),
971# Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE).
972# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
973# it also included the Penedos.
974#
975# Amap�� (AP), east Par�� (PA)
976# East Par�� includes Bel��m, Marab��, Serra Norte, and S��o F��lix do Xingu.
977# The division between east and west Par�� is the river Xingu.
978# In the north a very small part from the river Javary (now Jari I guess,
979# the border with Amap��) to the Amazon, then to the Xingu.
980Zone America/Belem -3:13:56 - LMT 1914
941# Other Atlantic islands have no permanent settlement.
942# These include Trindade and Martim Vaz (administratively part of ES),
943# Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE).
944# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
945# it also included the Penedos.
946#
947# Amap�� (AP), east Par�� (PA)
948# East Par�� includes Bel��m, Marab��, Serra Norte, and S��o F��lix do Xingu.
949# The division between east and west Par�� is the river Xingu.
950# In the north a very small part from the river Javary (now Jari I guess,
951# the border with Amap��) to the Amazon, then to the Xingu.
952Zone America/Belem -3:13:56 - LMT 1914
981 -3:00 Brazil BR%sT 1988 Sep 12
982 -3:00 - BRT
953 -3:00 Brazil -03/-02 1988 Sep 12
954 -3:00 - -03
983#
984# west Par�� (PA)
985# West Par�� includes Altamira, ��bidos, Prainha, Oriximin��, and Santar��m.
986Zone America/Santarem -3:38:48 - LMT 1914
955#
956# west Par�� (PA)
957# West Par�� includes Altamira, ��bidos, Prainha, Oriximin��, and Santar��m.
958Zone America/Santarem -3:38:48 - LMT 1914
987 -4:00 Brazil AM%sT 1988 Sep 12
988 -4:00 - AMT 2008 Jun 24 0:00
989 -3:00 - BRT
959 -4:00 Brazil -04/-03 1988 Sep 12
960 -4:00 - -04 2008 Jun 24 0:00
961 -3:00 - -03
990#
991# Maranh��o (MA), Piau�� (PI), Cear�� (CE), Rio Grande do Norte (RN),
992# Para��ba (PB)
993Zone America/Fortaleza -2:34:00 - LMT 1914
962#
963# Maranh��o (MA), Piau�� (PI), Cear�� (CE), Rio Grande do Norte (RN),
964# Para��ba (PB)
965Zone America/Fortaleza -2:34:00 - LMT 1914
994 -3:00 Brazil BR%sT 1990 Sep 17
995 -3:00 - BRT 1999 Sep 30
996 -3:00 Brazil BR%sT 2000 Oct 22
997 -3:00 - BRT 2001 Sep 13
998 -3:00 Brazil BR%sT 2002 Oct 1
999 -3:00 - BRT
966 -3:00 Brazil -03/-02 1990 Sep 17
967 -3:00 - -03 1999 Sep 30
968 -3:00 Brazil -03/-02 2000 Oct 22
969 -3:00 - -03 2001 Sep 13
970 -3:00 Brazil -03/-02 2002 Oct 1
971 -3:00 - -03
1000#
1001# Pernambuco (PE) (except Atlantic islands)
1002Zone America/Recife -2:19:36 - LMT 1914
972#
973# Pernambuco (PE) (except Atlantic islands)
974Zone America/Recife -2:19:36 - LMT 1914
1003 -3:00 Brazil BR%sT 1990 Sep 17
1004 -3:00 - BRT 1999 Sep 30
1005 -3:00 Brazil BR%sT 2000 Oct 15
1006 -3:00 - BRT 2001 Sep 13
1007 -3:00 Brazil BR%sT 2002 Oct 1
1008 -3:00 - BRT
975 -3:00 Brazil -03/-02 1990 Sep 17
976 -3:00 - -03 1999 Sep 30
977 -3:00 Brazil -03/-02 2000 Oct 15
978 -3:00 - -03 2001 Sep 13
979 -3:00 Brazil -03/-02 2002 Oct 1
980 -3:00 - -03
1009#
1010# Tocantins (TO)
1011Zone America/Araguaina -3:12:48 - LMT 1914
981#
982# Tocantins (TO)
983Zone America/Araguaina -3:12:48 - LMT 1914
1012 -3:00 Brazil BR%sT 1990 Sep 17
1013 -3:00 - BRT 1995 Sep 14
1014 -3:00 Brazil BR%sT 2003 Sep 24
1015 -3:00 - BRT 2012 Oct 21
1016 -3:00 Brazil BR%sT 2013 Sep
1017 -3:00 - BRT
984 -3:00 Brazil -03/-02 1990 Sep 17
985 -3:00 - -03 1995 Sep 14
986 -3:00 Brazil -03/-02 2003 Sep 24
987 -3:00 - -03 2012 Oct 21
988 -3:00 Brazil -03/-02 2013 Sep
989 -3:00 - -03
1018#
1019# Alagoas (AL), Sergipe (SE)
1020Zone America/Maceio -2:22:52 - LMT 1914
990#
991# Alagoas (AL), Sergipe (SE)
992Zone America/Maceio -2:22:52 - LMT 1914
1021 -3:00 Brazil BR%sT 1990 Sep 17
1022 -3:00 - BRT 1995 Oct 13
1023 -3:00 Brazil BR%sT 1996 Sep 4
1024 -3:00 - BRT 1999 Sep 30
1025 -3:00 Brazil BR%sT 2000 Oct 22
1026 -3:00 - BRT 2001 Sep 13
1027 -3:00 Brazil BR%sT 2002 Oct 1
1028 -3:00 - BRT
993 -3:00 Brazil -03/-02 1990 Sep 17
994 -3:00 - -03 1995 Oct 13
995 -3:00 Brazil -03/-02 1996 Sep 4
996 -3:00 - -03 1999 Sep 30
997 -3:00 Brazil -03/-02 2000 Oct 22
998 -3:00 - -03 2001 Sep 13
999 -3:00 Brazil -03/-02 2002 Oct 1
1000 -3:00 - -03
1029#
1030# Bahia (BA)
1031# There are too many Salvadors elsewhere, so use America/Bahia instead
1032# of America/Salvador.
1033Zone America/Bahia -2:34:04 - LMT 1914
1001#
1002# Bahia (BA)
1003# There are too many Salvadors elsewhere, so use America/Bahia instead
1004# of America/Salvador.
1005Zone America/Bahia -2:34:04 - LMT 1914
1034 -3:00 Brazil BR%sT 2003 Sep 24
1035 -3:00 - BRT 2011 Oct 16
1036 -3:00 Brazil BR%sT 2012 Oct 21
1037 -3:00 - BRT
1006 -3:00 Brazil -03/-02 2003 Sep 24
1007 -3:00 - -03 2011 Oct 16
1008 -3:00 Brazil -03/-02 2012 Oct 21
1009 -3:00 - -03
1038#
1039# Goi��s (GO), Distrito Federal (DF), Minas Gerais (MG),
1040# Esp��rito Santo (ES), Rio de Janeiro (RJ), S��o Paulo (SP), Paran�� (PR),
1041# Santa Catarina (SC), Rio Grande do Sul (RS)
1042Zone America/Sao_Paulo -3:06:28 - LMT 1914
1010#
1011# Goi��s (GO), Distrito Federal (DF), Minas Gerais (MG),
1012# Esp��rito Santo (ES), Rio de Janeiro (RJ), S��o Paulo (SP), Paran�� (PR),
1013# Santa Catarina (SC), Rio Grande do Sul (RS)
1014Zone America/Sao_Paulo -3:06:28 - LMT 1914
1043 -3:00 Brazil BR%sT 1963 Oct 23 0:00
1044 -3:00 1:00 BRST 1964
1045 -3:00 Brazil BR%sT
1015 -3:00 Brazil -03/-02 1963 Oct 23 0:00
1016 -3:00 1:00 -02 1964
1017 -3:00 Brazil -03/-02
1046#
1047# Mato Grosso do Sul (MS)
1048Zone America/Campo_Grande -3:38:28 - LMT 1914
1018#
1019# Mato Grosso do Sul (MS)
1020Zone America/Campo_Grande -3:38:28 - LMT 1914
1049 -4:00 Brazil AM%sT
1021 -4:00 Brazil -04/-03
1050#
1051# Mato Grosso (MT)
1052Zone America/Cuiaba -3:44:20 - LMT 1914
1022#
1023# Mato Grosso (MT)
1024Zone America/Cuiaba -3:44:20 - LMT 1914
1053 -4:00 Brazil AM%sT 2003 Sep 24
1054 -4:00 - AMT 2004 Oct 1
1055 -4:00 Brazil AM%sT
1025 -4:00 Brazil -04/-03 2003 Sep 24
1026 -4:00 - -04 2004 Oct 1
1027 -4:00 Brazil -04/-03
1056#
1057# Rond��nia (RO)
1058Zone America/Porto_Velho -4:15:36 - LMT 1914
1028#
1029# Rond��nia (RO)
1030Zone America/Porto_Velho -4:15:36 - LMT 1914
1059 -4:00 Brazil AM%sT 1988 Sep 12
1060 -4:00 - AMT
1031 -4:00 Brazil -04/-03 1988 Sep 12
1032 -4:00 - -04
1061#
1062# Roraima (RR)
1063Zone America/Boa_Vista -4:02:40 - LMT 1914
1033#
1034# Roraima (RR)
1035Zone America/Boa_Vista -4:02:40 - LMT 1914
1064 -4:00 Brazil AM%sT 1988 Sep 12
1065 -4:00 - AMT 1999 Sep 30
1066 -4:00 Brazil AM%sT 2000 Oct 15
1067 -4:00 - AMT
1036 -4:00 Brazil -04/-03 1988 Sep 12
1037 -4:00 - -04 1999 Sep 30
1038 -4:00 Brazil -04/-03 2000 Oct 15
1039 -4:00 - -04
1068#
1069# east Amazonas (AM): Boca do Acre, Juta��, Manaus, Floriano Peixoto
1070# The great circle line from Tabatinga to Porto Acre divides
1071# east from west Amazonas.
1072Zone America/Manaus -4:00:04 - LMT 1914
1040#
1041# east Amazonas (AM): Boca do Acre, Juta��, Manaus, Floriano Peixoto
1042# The great circle line from Tabatinga to Porto Acre divides
1043# east from west Amazonas.
1044Zone America/Manaus -4:00:04 - LMT 1914
1073 -4:00 Brazil AM%sT 1988 Sep 12
1074 -4:00 - AMT 1993 Sep 28
1075 -4:00 Brazil AM%sT 1994 Sep 22
1076 -4:00 - AMT
1045 -4:00 Brazil -04/-03 1988 Sep 12
1046 -4:00 - -04 1993 Sep 28
1047 -4:00 Brazil -04/-03 1994 Sep 22
1048 -4:00 - -04
1077#
1078# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
1079# Eirunep��, Envira, Ipixuna
1080Zone America/Eirunepe -4:39:28 - LMT 1914
1049#
1050# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
1051# Eirunep��, Envira, Ipixuna
1052Zone America/Eirunepe -4:39:28 - LMT 1914
1081 -5:00 Brazil AC%sT 1988 Sep 12
1082 -5:00 - ACT 1993 Sep 28
1083 -5:00 Brazil AC%sT 1994 Sep 22
1084 -5:00 - ACT 2008 Jun 24 0:00
1085 -4:00 - AMT 2013 Nov 10
1086 -5:00 - ACT
1053 -5:00 Brazil -05/-04 1988 Sep 12
1054 -5:00 - -05 1993 Sep 28
1055 -5:00 Brazil -05/-04 1994 Sep 22
1056 -5:00 - -05 2008 Jun 24 0:00
1057 -4:00 - -04 2013 Nov 10
1058 -5:00 - -05
1087#
1088# Acre (AC)
1089Zone America/Rio_Branco -4:31:12 - LMT 1914
1059#
1060# Acre (AC)
1061Zone America/Rio_Branco -4:31:12 - LMT 1914
1090 -5:00 Brazil AC%sT 1988 Sep 12
1091 -5:00 - ACT 2008 Jun 24 0:00
1092 -4:00 - AMT 2013 Nov 10
1093 -5:00 - ACT
1062 -5:00 Brazil -05/-04 1988 Sep 12
1063 -5:00 - -05 2008 Jun 24 0:00
1064 -4:00 - -04 2013 Nov 10
1065 -5:00 - -05
1094
1095# Chile
1096
1097# From Paul Eggert (2015-04-03):
1098# Shanks & Pottenger says America/Santiago introduced standard time in
1099# 1890 and rounds its UTC offset to 70W40; guess that in practice this
1100# was the same offset as in 1916-1919. It also says Pacific/Easter
1101# standardized on 109W22 in 1890; assume this didn't change the clocks.
1102#
1103# Dates for America/Santiago from 1910 to 2004 are primarily from
1104# the following source, cited by Oscar van Vlijmen (2006-10-08):
1105# [1] Chile Law
1106# http://www.webexhibits.org/daylightsaving/chile.html
1066
1067# Chile
1068
1069# From Paul Eggert (2015-04-03):
1070# Shanks & Pottenger says America/Santiago introduced standard time in
1071# 1890 and rounds its UTC offset to 70W40; guess that in practice this
1072# was the same offset as in 1916-1919. It also says Pacific/Easter
1073# standardized on 109W22 in 1890; assume this didn't change the clocks.
1074#
1075# Dates for America/Santiago from 1910 to 2004 are primarily from
1076# the following source, cited by Oscar van Vlijmen (2006-10-08):
1077# [1] Chile Law
1078# http://www.webexhibits.org/daylightsaving/chile.html
1107# This contains a copy of a this official table:
1079# This contains a copy of this official table:
1108# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30)
1080# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30)
1109# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
1081# https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
1110# [1] needs several corrections, though.
1111#
1112# The first set of corrections is from:
1113# [2] History of the Official Time of Chile
1114# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See:
1082# [1] needs several corrections, though.
1083#
1084# The first set of corrections is from:
1085# [2] History of the Official Time of Chile
1086# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See:
1115# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
1087# https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
1116# This is an English translation of:
1117# Historia de la hora oficial de Chile (retrieved 2012-10-24). See:
1088# This is an English translation of:
1089# Historia de la hora oficial de Chile (retrieved 2012-10-24). See:
1118# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
1090# https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
1119# A fancier Spanish version (requiring mouse-clicking) is at:
1120# http://www.horaoficial.cl/historia_hora.html
1121# Conflicts between [1] and [2] were resolved as follows:
1122#
1123# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites
1124# Bolet��n No. 1, Aviso No. 1 (1910). Go with [2].
1125#
1126# - [1] says SMT was -4:42:45, [2] says Chile's official time from

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1230# this scheme will stick.
1231#
1232# From Paul Eggert (2016-03-18):
1233# For now, assume the pattern holds for the indefinite future.
1234# The decree says transitions occur at 24:00; in practice this appears
1235# to mean 24:00 mainland time, not 24:00 local time, so that Easter
1236# Island is always two hours behind the mainland.
1237
1091# A fancier Spanish version (requiring mouse-clicking) is at:
1092# http://www.horaoficial.cl/historia_hora.html
1093# Conflicts between [1] and [2] were resolved as follows:
1094#
1095# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites
1096# Bolet��n No. 1, Aviso No. 1 (1910). Go with [2].
1097#
1098# - [1] says SMT was -4:42:45, [2] says Chile's official time from

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1202# this scheme will stick.
1203#
1204# From Paul Eggert (2016-03-18):
1205# For now, assume the pattern holds for the indefinite future.
1206# The decree says transitions occur at 24:00; in practice this appears
1207# to mean 24:00 mainland time, not 24:00 local time, so that Easter
1208# Island is always two hours behind the mainland.
1209
1210# From Juan Correa (2016-12-04):
1211# Magallanes region ... will keep DST (UTC -3) all year round....
1212# http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx
1213#
1214# From Deborah Goldsmith (2017-01-19):
1215# http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf
1216# From Paul Eggert (2017-01-19):
1217# The above says the Magallanes change expires 2019-05-11 at 24:00,
1218# so in theory, they will revert to -04/-03 after that, which means
1219# they will switch from -03 to -04 one hour after Santiago does that day.
1220# For now, assume that they will not revert.
1221
1238# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1239Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
1240Rule Chile 1928 1932 - Apr 1 0:00 0 -
1241Rule Chile 1968 only - Nov 3 4:00u 1:00 S
1242Rule Chile 1969 only - Mar 30 3:00u 0 -
1243Rule Chile 1969 only - Nov 23 4:00u 1:00 S
1244Rule Chile 1970 only - Mar 29 3:00u 0 -
1245Rule Chile 1971 only - Mar 14 3:00u 0 -

--- 24 unchanged lines hidden (view full) ---

1270Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S
1271Rule Chile 2016 max - May Sun>=9 3:00u 0 -
1272Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S
1273# IATA SSIM anomalies: (1992-02) says 1992-03-14;
1274# (1996-09) says 1998-03-08. Ignore these.
1275# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1276Zone America/Santiago -4:42:46 - LMT 1890
1277 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time
1222# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1223Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
1224Rule Chile 1928 1932 - Apr 1 0:00 0 -
1225Rule Chile 1968 only - Nov 3 4:00u 1:00 S
1226Rule Chile 1969 only - Mar 30 3:00u 0 -
1227Rule Chile 1969 only - Nov 23 4:00u 1:00 S
1228Rule Chile 1970 only - Mar 29 3:00u 0 -
1229Rule Chile 1971 only - Mar 14 3:00u 0 -

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1254Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S
1255Rule Chile 2016 max - May Sun>=9 3:00u 0 -
1256Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S
1257# IATA SSIM anomalies: (1992-02) says 1992-03-14;
1258# (1996-09) says 1998-03-08. Ignore these.
1259# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1260Zone America/Santiago -4:42:46 - LMT 1890
1261 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time
1278 -5:00 - CLT 1916 Jul 1 # Chile Time
1262 -5:00 - -05 1916 Jul 1
1279 -4:42:46 - SMT 1918 Sep 10
1263 -4:42:46 - SMT 1918 Sep 10
1280 -4:00 - CLT 1919 Jul 1
1264 -4:00 - -04 1919 Jul 1
1281 -4:42:46 - SMT 1927 Sep 1
1265 -4:42:46 - SMT 1927 Sep 1
1282 -5:00 Chile CL%sT 1932 Sep 1
1283 -4:00 - CLT 1942 Jun 1
1284 -5:00 - CLT 1942 Aug 1
1285 -4:00 - CLT 1946 Jul 15
1286 -4:00 1:00 CLST 1946 Sep 1 # central Chile
1287 -4:00 - CLT 1947 Apr 1
1288 -5:00 - CLT 1947 May 21 23:00
1289 -4:00 Chile CL%sT
1266 -5:00 Chile -05/-04 1932 Sep 1
1267 -4:00 - -04 1942 Jun 1
1268 -5:00 - -05 1942 Aug 1
1269 -4:00 - -04 1946 Jul 15
1270 -4:00 1:00 -03 1946 Sep 1 # central Chile
1271 -4:00 - -04 1947 Apr 1
1272 -5:00 - -05 1947 May 21 23:00
1273 -4:00 Chile -04/-03
1274Zone America/Punta_Arenas -4:43:40 - LMT 1890
1275 -4:42:46 - SMT 1910 Jan 10
1276 -5:00 - -05 1916 Jul 1
1277 -4:42:46 - SMT 1918 Sep 10
1278 -4:00 - -04 1919 Jul 1
1279 -4:42:46 - SMT 1927 Sep 1
1280 -5:00 Chile -05/-04 1932 Sep 1
1281 -4:00 - -04 1942 Jun 1
1282 -5:00 - -05 1942 Aug 1
1283 -4:00 - -04 1947 Apr 1
1284 -5:00 - -05 1947 May 21 23:00
1285 -4:00 Chile -04/-03 2016 Dec 4
1286 -3:00 - -03
1290Zone Pacific/Easter -7:17:28 - LMT 1890
1291 -7:17:28 - EMT 1932 Sep # Easter Mean Time
1287Zone Pacific/Easter -7:17:28 - LMT 1890
1288 -7:17:28 - EMT 1932 Sep # Easter Mean Time
1292 -7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time
1293 -6:00 Chile EAS%sT
1289 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time
1290 -6:00 Chile -06/-05
1294#
1295# Salas y G��mez Island is uninhabited.
1296# Other Chilean locations, including Juan Fern��ndez Is, Desventuradas Is,
1297# and Antarctic bases, are like America/Santiago.
1298
1299# Antarctic base using South American rules
1300# (See the file 'antarctica' for more.)
1301#
1302# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
1303#
1304# From Ethan Dicks (1996-10-06):
1305# It keeps the same time as Punta Arenas, Chile, because, just like us
1306# and the South Pole, that's the other end of their supply line....
1307# I verified with someone who was there that since 1980,
1308# Palmer has followed Chile. Prior to that, before the Falklands War,
1309# Palmer used to be supplied from Argentina.
1310#
1311# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1312Zone Antarctica/Palmer 0 - -00 1965
1291#
1292# Salas y G��mez Island is uninhabited.
1293# Other Chilean locations, including Juan Fern��ndez Is, Desventuradas Is,
1294# and Antarctic bases, are like America/Santiago.
1295
1296# Antarctic base using South American rules
1297# (See the file 'antarctica' for more.)
1298#
1299# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
1300#
1301# From Ethan Dicks (1996-10-06):
1302# It keeps the same time as Punta Arenas, Chile, because, just like us
1303# and the South Pole, that's the other end of their supply line....
1304# I verified with someone who was there that since 1980,
1305# Palmer has followed Chile. Prior to that, before the Falklands War,
1306# Palmer used to be supplied from Argentina.
1307#
1308# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1309Zone Antarctica/Palmer 0 - -00 1965
1313 -4:00 Arg AR%sT 1969 Oct 5
1314 -3:00 Arg AR%sT 1982 May
1315 -4:00 Chile CL%sT
1310 -4:00 Arg -04/-03 1969 Oct 5
1311 -3:00 Arg -03/-02 1982 May
1312 -4:00 Chile -04/-03 2016 Dec 4
1313 -3:00 - -03
1316
1317# Colombia
1318
1319# Milne gives 4:56:16.4 for Bogot�� time in 1899; round to nearest. He writes,
1320# "A variation of fifteen minutes in the public clocks of Bogota is not rare."
1321
1322# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1323Rule CO 1992 only - May 3 0:00 1:00 S
1324Rule CO 1993 only - Apr 4 0:00 0 -
1325# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1326Zone America/Bogota -4:56:16 - LMT 1884 Mar 13
1327 -4:56:16 - BMT 1914 Nov 23 # Bogot�� Mean Time
1314
1315# Colombia
1316
1317# Milne gives 4:56:16.4 for Bogot�� time in 1899; round to nearest. He writes,
1318# "A variation of fifteen minutes in the public clocks of Bogota is not rare."
1319
1320# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1321Rule CO 1992 only - May 3 0:00 1:00 S
1322Rule CO 1993 only - Apr 4 0:00 0 -
1323# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1324Zone America/Bogota -4:56:16 - LMT 1884 Mar 13
1325 -4:56:16 - BMT 1914 Nov 23 # Bogot�� Mean Time
1328 -5:00 CO CO%sT # Colombia Time
1326 -5:00 CO -05/-04
1329# Malpelo, Providencia, San Andres
1330# no information; probably like America/Bogota
1331
1332# Cura��ao
1333
1334# Milne gives 4:35:46.9 for Cura��ao mean time; round to nearest.
1335#
1336# From Paul Eggert (2006-03-22):

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1344# By July 2007 Cura��ao and St Maarten are planned to become
1345# associated states within the Netherlands, much like Aruba;
1346# Bonaire, Saba and St Eustatius would become directly part of the
1347# Netherlands as Kingdom Islands. This won't affect their time zones
1348# though, as far as we know.
1349#
1350# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1351Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad
1327# Malpelo, Providencia, San Andres
1328# no information; probably like America/Bogota
1329
1330# Cura��ao
1331
1332# Milne gives 4:35:46.9 for Cura��ao mean time; round to nearest.
1333#
1334# From Paul Eggert (2006-03-22):

--- 7 unchanged lines hidden (view full) ---

1342# By July 2007 Cura��ao and St Maarten are planned to become
1343# associated states within the Netherlands, much like Aruba;
1344# Bonaire, Saba and St Eustatius would become directly part of the
1345# Netherlands as Kingdom Islands. This won't affect their time zones
1346# though, as far as we know.
1347#
1348# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1349Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad
1352 -4:30 - ANT 1965 # Netherlands Antilles Time
1350 -4:30 - -0430 1965
1353 -4:00 - AST
1354
1355# From Arthur David Olson (2011-06-15):
1356# use links for places with new iso3166 codes.
1357# The name "Lower Prince's Quarter" is both longer than fourteen characters
1358# and contains an apostrophe; use "Lower_Princes" below.
1359
1360Link America/Curacao America/Lower_Princes # Sint Maarten
1361Link America/Curacao America/Kralendijk # Caribbean Netherlands
1362
1363# Ecuador
1364#
1365# Milne says the Central and South American Telegraph Company used -5:24:15.
1366#
1351 -4:00 - AST
1352
1353# From Arthur David Olson (2011-06-15):
1354# use links for places with new iso3166 codes.
1355# The name "Lower Prince's Quarter" is both longer than fourteen characters
1356# and contains an apostrophe; use "Lower_Princes" below.
1357
1358Link America/Curacao America/Lower_Princes # Sint Maarten
1359Link America/Curacao America/Kralendijk # Caribbean Netherlands
1360
1361# Ecuador
1362#
1363# Milne says the Central and South American Telegraph Company used -5:24:15.
1364#
1367# From Paul Eggert (2007-03-04):
1368# Apparently Ecuador had a failed experiment with DST in 1992.
1369# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1370# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1371# talk about "hora Sixto". Leave this alone for now, as we have no data.
1365# From Alois Treindl (2016-12-15):
1366# https://www.elcomercio.com/actualidad/hora-sixto-1993.html
1367# ... Whether the law applied also to Gal��pagos, I do not know.
1368# From Paul Eggert (2016-12-15):
1369# https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html
1370# This says President Sixto Dur��n Ball��n signed decree No. 285, which
1371# established DST from 1992-11-28 to 1993-02-05; it does not give transition
1372# times. The people called it "hora de Sixto" ("Sixto hour"). The change did
1373# not go over well; a popular song "Qu�� hora es" by Jaime Guevara had lyrics
1374# that included "Amanec��a en mitad de la noche, los guaguas iban a clase sin
1375# sol" ("It was dawning in the middle of the night, the buses went to class
1376# without sun"). Although Ball��n's campaign slogan was "Ni un paso atr��s"
1377# (Not one step back), the clocks went back in 1993 and the experiment was not
1378# repeated. For now, assume transitions were at 00:00 local time country-wide.
1372#
1379#
1380# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1381Rule Ecuador 1992 only - Nov 28 0:00 1:00 S
1382Rule Ecuador 1993 only - Feb 5 0:00 0 -
1383#
1373# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1374Zone America/Guayaquil -5:19:20 - LMT 1890
1375 -5:14:00 - QMT 1931 # Quito Mean Time
1384# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1385Zone America/Guayaquil -5:19:20 - LMT 1890
1386 -5:14:00 - QMT 1931 # Quito Mean Time
1376 -5:00 - ECT # Ecuador Time
1387 -5:00 Ecuador -05/-04
1377Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
1388Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
1378 -5:00 - ECT 1986
1379 -6:00 - GALT # Gal��pagos Time
1389 -5:00 - -05 1986
1390 -6:00 Ecuador -06/-05
1380
1381# Falklands
1382
1383# From Paul Eggert (2006-03-22):
1384# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1385# the IATA gives 1996-09-08. Go with Shanks & Pottenger.
1386
1387# From Falkland Islands Government Office, London (2001-01-22)

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1471Rule Falk 1984 only - Sep 16 0:00 1:00 S
1472Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S
1473Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 -
1474Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 -
1475Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S
1476# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1477Zone Atlantic/Stanley -3:51:24 - LMT 1890
1478 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time
1391
1392# Falklands
1393
1394# From Paul Eggert (2006-03-22):
1395# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1396# the IATA gives 1996-09-08. Go with Shanks & Pottenger.
1397
1398# From Falkland Islands Government Office, London (2001-01-22)

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1482Rule Falk 1984 only - Sep 16 0:00 1:00 S
1483Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S
1484Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 -
1485Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 -
1486Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S
1487# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1488Zone Atlantic/Stanley -3:51:24 - LMT 1890
1489 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time
1479 -4:00 Falk FK%sT 1983 May # Falkland Is Time
1480 -3:00 Falk FK%sT 1985 Sep 15
1481 -4:00 Falk FK%sT 2010 Sep 5 2:00
1482 -3:00 - FKST
1490 -4:00 Falk -04/-03 1983 May
1491 -3:00 Falk -03/-02 1985 Sep 15
1492 -4:00 Falk -04/-03 2010 Sep 5 2:00
1493 -3:00 - -03
1483
1484# French Guiana
1485# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1486Zone America/Cayenne -3:29:20 - LMT 1911 Jul
1494
1495# French Guiana
1496# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1497Zone America/Cayenne -3:29:20 - LMT 1911 Jul
1487 -4:00 - GFT 1967 Oct # French Guiana Time
1488 -3:00 - GFT
1498 -4:00 - -04 1967 Oct
1499 -3:00 - -03
1489
1490# Guyana
1491# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1492Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
1500
1501# Guyana
1502# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1503Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
1493 -3:45 - GBGT 1966 May 26 # Br Guiana Time
1494 -3:45 - GYT 1975 Jul 31 # Guyana Time
1495 -3:00 - GYT 1991
1504 -3:45 - -0345 1975 Jul 31
1505 -3:00 - -03 1991
1496# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
1506# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
1497 -4:00 - GYT
1507 -4:00 - -04
1498
1499# Paraguay
1500#
1501# From Paul Eggert (2006-03-22):
1502# Shanks & Pottenger say that spring transitions are 01:00 -> 02:00,
1503# and autumn transitions are 00:00 -> 23:00. Go with pre-1999
1504# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
1505#

--- 75 unchanged lines hidden (view full) ---

1581# From Carlos Ra��l Perasso (2014-02-28):
1582# Decree 1264 can be found at:
1583# http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf
1584Rule Para 2013 max - Mar Sun>=22 0:00 0 -
1585
1586# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1587Zone America/Asuncion -3:50:40 - LMT 1890
1588 -3:50:40 - AMT 1931 Oct 10 # Asunci��n Mean Time
1508
1509# Paraguay
1510#
1511# From Paul Eggert (2006-03-22):
1512# Shanks & Pottenger say that spring transitions are 01:00 -> 02:00,
1513# and autumn transitions are 00:00 -> 23:00. Go with pre-1999
1514# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
1515#

--- 75 unchanged lines hidden (view full) ---

1591# From Carlos Ra��l Perasso (2014-02-28):
1592# Decree 1264 can be found at:
1593# http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf
1594Rule Para 2013 max - Mar Sun>=22 0:00 0 -
1595
1596# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1597Zone America/Asuncion -3:50:40 - LMT 1890
1598 -3:50:40 - AMT 1931 Oct 10 # Asunci��n Mean Time
1589 -4:00 - PYT 1972 Oct # Paraguay Time
1590 -3:00 - PYT 1974 Apr
1591 -4:00 Para PY%sT
1599 -4:00 - -04 1972 Oct
1600 -3:00 - -03 1974 Apr
1601 -4:00 Para -04/-03
1592
1593# Peru
1594#
1595# From Evelyn C. Leeper via Mark Brader (2003-10-26)
1596# <news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net>:
1597# When we were in Peru in 1985-1986, they apparently switched over
1598# sometime between December 29 and January 3 while we were on the Amazon.
1599#

--- 10 unchanged lines hidden (view full) ---

1610Rule Peru 1990 only - Jan 1 0:00 1:00 S
1611Rule Peru 1990 only - Apr 1 0:00 0 -
1612# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
1613Rule Peru 1994 only - Jan 1 0:00 1:00 S
1614Rule Peru 1994 only - Apr 1 0:00 0 -
1615# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1616Zone America/Lima -5:08:12 - LMT 1890
1617 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
1602
1603# Peru
1604#
1605# From Evelyn C. Leeper via Mark Brader (2003-10-26)
1606# <news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net>:
1607# When we were in Peru in 1985-1986, they apparently switched over
1608# sometime between December 29 and January 3 while we were on the Amazon.
1609#

--- 10 unchanged lines hidden (view full) ---

1620Rule Peru 1990 only - Jan 1 0:00 1:00 S
1621Rule Peru 1990 only - Apr 1 0:00 0 -
1622# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
1623Rule Peru 1994 only - Jan 1 0:00 1:00 S
1624Rule Peru 1994 only - Apr 1 0:00 0 -
1625# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1626Zone America/Lima -5:08:12 - LMT 1890
1627 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
1618 -5:00 Peru PE%sT # Peru Time
1628 -5:00 Peru -05/-04
1619
1620# South Georgia
1621# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1622Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
1629
1630# South Georgia
1631# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1632Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
1623 -2:00 - GST # South Georgia Time
1633 -2:00 - -02
1624
1625# South Sandwich Is
1626# uninhabited; scientific personnel have wintered
1627
1628# Suriname
1629# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1630Zone America/Paramaribo -3:40:40 - LMT 1911
1631 -3:40:52 - PMT 1935 # Paramaribo Mean Time
1632 -3:40:36 - PMT 1945 Oct # The capital moved?
1634
1635# South Sandwich Is
1636# uninhabited; scientific personnel have wintered
1637
1638# Suriname
1639# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1640Zone America/Paramaribo -3:40:40 - LMT 1911
1641 -3:40:52 - PMT 1935 # Paramaribo Mean Time
1642 -3:40:36 - PMT 1945 Oct # The capital moved?
1633 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time
1634 -3:30 - SRT 1984 Oct # Suriname Time
1635 -3:00 - SRT
1643 -3:30 - -0330 1984 Oct
1644 -3:00 - -03
1636
1637# Trinidad and Tobago
1638# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1639Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
1640 -4:00 - AST
1641
1642# These all agree with Trinidad and Tobago since 1970.
1643Link America/Port_of_Spain America/Anguilla

--- 86 unchanged lines hidden (view full) ---

1730# From Paul Eggert (2015-06-30):
1731# Apparently restaurateurs complained that DST caused people to go to the beach
1732# instead of out to dinner.
1733# From Pablo Camargo (2015-07-13):
1734# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf
1735# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04]
1736Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S
1737Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 -
1645
1646# Trinidad and Tobago
1647# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1648Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
1649 -4:00 - AST
1650
1651# These all agree with Trinidad and Tobago since 1970.
1652Link America/Port_of_Spain America/Anguilla

--- 86 unchanged lines hidden (view full) ---

1739# From Paul Eggert (2015-06-30):
1740# Apparently restaurateurs complained that DST caused people to go to the beach
1741# instead of out to dinner.
1742# From Pablo Camargo (2015-07-13):
1743# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf
1744# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04]
1745Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S
1746Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 -
1738# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1747
1748# This Zone can be simplified once we assume zic %z.
1739Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1740 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1749Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1750 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1741 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
1742 -3:00 Uruguay UY%sT
1751 -3:30 Uruguay -0330/-03 1942 Dec 14
1752 -3:00 Uruguay -03/-02 1968
1753 -3:00 Uruguay -03/-0230 1971
1754 -3:00 Uruguay -03/-02 1974
1755 -3:00 Uruguay -03/-0230 1974 Dec 22
1756 -3:00 Uruguay -03/-02
1743
1744# Venezuela
1745#
1746# From Paul Eggert (2015-07-28):
1747# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533
1748# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf
1749#
1750# From John Stainforth (2007-11-28):

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1759# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino
1760#
1761# From Paul Eggert (2016-04-15):
1762# Clocks advance 30 minutes on 2016-05-01 at 02:30....
1763# "'Venezuela's new time-zone: hours without light, hours without water,
1764# hours of presidential broadcasts, hours of lines,' quipped comedian
1765# Jean Mary Curr�� ...". See: Cawthorne A, Kai D. Venezuela scraps
1766# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400
1757
1758# Venezuela
1759#
1760# From Paul Eggert (2015-07-28):
1761# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533
1762# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf
1763#
1764# From John Stainforth (2007-11-28):

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1773# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino
1774#
1775# From Paul Eggert (2016-04-15):
1776# Clocks advance 30 minutes on 2016-05-01 at 02:30....
1777# "'Venezuela's new time-zone: hours without light, hours without water,
1778# hours of presidential broadcasts, hours of lines,' quipped comedian
1779# Jean Mary Curr�� ...". See: Cawthorne A, Kai D. Venezuela scraps
1780# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400
1767# http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE
1781# https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE
1768#
1769# From Matt Johnson (2016-04-20):
1770# ... published in the official Gazette [2016-04-18], here:
1771# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf
1772
1773# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1774Zone America/Caracas -4:27:44 - LMT 1890
1775 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1782#
1783# From Matt Johnson (2016-04-20):
1784# ... published in the official Gazette [2016-04-18], here:
1785# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf
1786
1787# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1788Zone America/Caracas -4:27:44 - LMT 1890
1789 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1776 -4:30 - VET 1965 Jan 1 0:00 # Venezuela T.
1777 -4:00 - VET 2007 Dec 9 3:00
1778 -4:30 - VET 2016 May 1 2:30
1779 -4:00 - VET
1790 -4:30 - -0430 1965 Jan 1 0:00
1791 -4:00 - -04 2007 Dec 9 3:00
1792 -4:30 - -0430 2016 May 1 2:30
1793 -4:00 - -04