diff options
Diffstat (limited to 'share/zoneinfo/southamerica')
| -rw-r--r-- | share/zoneinfo/southamerica | 97 |
1 files changed, 52 insertions, 45 deletions
diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica index eb7b5c7d8492..3503074ab899 100644 --- a/share/zoneinfo/southamerica +++ b/share/zoneinfo/southamerica @@ -1,14 +1,14 @@ -# @(#)southamerica 7.66 +# @(#)southamerica 8.3 # <pre> # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to # tz@elsie.nci.nih.gov for general use in the future). -# From Paul Eggert (1999-07-07): +# From Paul Eggert (2006-03-22): # A good source for time zone historical data outside the U.S. is -# Thomas G. Shanks, The International Atlas (5th edition), -# San Diego: ACS Publications, Inc. (1999). +# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), +# San Diego: ACS Publications, Inc. (2003). # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport @@ -16,8 +16,8 @@ # published semiannually. Law sent in several helpful summaries # of the IATA's data after 1990. # -# Except where otherwise noted, Shanks is the source for entries through 1990, -# and IATA SSIM is the source for entries after 1990. +# Except where otherwise noted, Shanks & Pottenger is the source for +# entries through 1990, and IATA SSIM is the source for entries afterwards. # # Earlier editions of these tables used the North American style (e.g. ARST and # ARDT for Argentine Standard and Daylight Time), but the following quote @@ -92,8 +92,6 @@ Rule Arg 1988 only - Dec 1 0:00 1:00 S # obtaining the data from the: # Talleres de Hidrografia Naval Argentina # (Argentine Naval Hydrography Institute) -# -# Shanks stops after 1992-03-01; go with Otero. Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # @@ -150,12 +148,12 @@ Rule Arg 2000 only - Mar Sun>=1 0:00 0 - # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # -# From Paul Eggert (2002-01-22): +# From Paul Eggert (2006-03-22): # <a href="http://www.spicasc.net/horvera.html"> -# Hora de verano para la Republica Argentina (2000-10-01) +# Hora de verano para la Republica Argentina (2003-06-08) # </a> says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value -# over Shanks. +# over Shanks & Pottenger. # # From Mariano Absatz (2004-06-05): # These media articles from a major newspaper mostly cover the current state: @@ -202,8 +200,8 @@ Rule Arg 2000 only - Mar Sun>=1 0:00 0 - # http://www.sanjuan.gov.ar/prensa/archivo/000426.html # http://www.sanjuan.gov.ar/prensa/archivo/000441.html -# Unless otherwise specified, data are from Shanks through 1992, from -# the IATA otherwise. As noted below, Shanks says that +# Unless otherwise specified, data are from Shanks & Pottenger through 1992, +# from the IATA otherwise. As noted below, Shanks & Pottenger say that # America/Cordoba split into 6 subregions during 1991/1992, but we # haven't verified this yet so for now we'll keep it a single region. # @@ -222,7 +220,7 @@ Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB), # San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) # -# Shanks also makes the following claims, which we haven't verified: +# Shanks & Pottenger also make the following claims, which we haven't verified: # - Formosa switched to -3:00 on 1991-01-07. # - Misiones switched to -3:00 on 1990-12-29. # - Chaco switched to -3:00 on 1991-01-04. @@ -712,7 +710,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # It clearly confirms my earlier suggestion, that DST begins at 22:00 # on Easter Island.... But it also seems to be saying that the # observance of DST in Chile began in 1966, rather than 1969 as -# ... [Shanks] has it.... +# ... [Shanks & Pottenger have] it.... # # My translation: # @@ -724,8 +722,8 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # to Easter Island and Sala y Gomez Island, will be set forward at # midnight and at 22:00, respectively, by 20 minutes." -# From Paul Eggert (2001-05-04): -# Go with this article in preference to Shanks's 1969 date for modern DST. +# From Paul Eggert (2006-03-22): +# Go with Law in preference to Shanks & Pottenger's 1969 date for modern DST. # Assume this rule has been used since DST was introduced in the islands. # From Paul Eggert (2002-10-24): @@ -752,7 +750,7 @@ Zone America/Santiago -4:42:40 - LMT 1890 -4:00 Chile CL%sT Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri -7:17:28 - MMT 1932 Sep # Mataveri Mean Time - -7:00 Chile EAS%sT 1982 Mar 14 # Easter I Time + -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time -6:00 Chile EAS%sT # # Sala y Gomez Island is like Pacific/Easter. @@ -760,11 +758,9 @@ Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri # San Felix, and Antarctic bases, are like America/Santiago. # Colombia -# Shanks specifies 24:00 for 1992 transition times; go with IATA, -# as it seems implausible to change clocks at midnight New Year's Eve. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule CO 1992 only - May 2 0:00 1:00 S -Rule CO 1992 only - Dec 31 0:00 0 - +Rule CO 1992 only - May 3 0:00 1:00 S +Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time @@ -773,10 +769,21 @@ Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 # no information; probably like America/Bogota # Curacao -# Shanks says that Bottom and Oranjestad have been at -4:00 since -# standard time was introduced on 1912-03-02; and that Kralendijk and Rincon -# used Kralendijk Mean Time (-4:33:08) from 1912-02-02 to 1965-01-01. -# This all predates our 1970 cutoff, though. +# +# From Paul Eggert (2006-03-22): +# Shanks & Pottenger say that The Bottom and Philipsburg have been at +# -4:00 since standard time was introduced on 1912-03-02; and that +# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from +# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say +# Saba Island has been like Curacao. +# This all predates our 1970 cutoff, though. +# +# By July 2007 Curacao and St Maarten are planned to become +# associated states within the Netherlands, much like Aruba; +# Bonaire, Saba and St Eustatius would become directly part of the +# Netherlands as Kingdom Islands. This won't affect their time zones +# though, as far as we know. +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad -4:30 - ANT 1965 # Netherlands Antilles Time @@ -793,9 +800,9 @@ Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno # Falklands -# From Paul Eggert (2001-03-05): -# Between 1990 and 2000 inclusive, Shanks and the IATA agree except -# the IATA gives 1996-09-08. Go with Shanks. +# From Paul Eggert (2006-03-22): +# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except +# the IATA gives 1996-09-08. Go with Shanks & Pottenger. # From Falkland Islands Government Office, London (2001-01-22) # via Jesper Norgaard: @@ -878,9 +885,9 @@ Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -4:00 - GYT # Paraguay -# From Paul Eggert (1999-10-29): -# Shanks (1999) says that spring transitions are from 01:00 -> 02:00, -# and autumn transitions are from 00:00 -> 23:00. Go with earlier +# From Paul Eggert (2006-03-22): +# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, +# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Para 1975 1988 - Oct 1 0:00 1:00 S @@ -915,9 +922,9 @@ Rule Para 1996 only - Mar 1 0:00 0 - # http://gateway.abc.com.py:8000/pub/pag04.mbr/artic?FHA=2001-03-03-02.24.52.900592 # Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S -# IATA SSIM (1997-09) says Mar 1; go with Shanks. +# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - -# Shanks says 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but +# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # From Rives McDow (2002-02-28): @@ -949,8 +956,8 @@ Zone America/Asuncion -3:50:40 - LMT 1890 # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # -# From Paul Eggert (2003-11-02): -# Shanks doesn't have this transition. Assume 1986 was like 1987. +# From Paul Eggert (2006-03-22): +# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 S @@ -961,7 +968,7 @@ Rule Peru 1986 1987 - Jan 1 0:00 1:00 S Rule Peru 1986 1987 - Apr 1 0:00 0 - Rule Peru 1990 only - Jan 1 0:00 1:00 S Rule Peru 1990 only - Apr 1 0:00 0 - -# IATA is ambiguous for 1993/1995; go with Shanks. +# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. Rule Peru 1994 only - Jan 1 0:00 1:00 S Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -994,23 +1001,23 @@ Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. -# From Shanks: +# From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -# Whitman gives 1923 Oct 1; go with Shanks. +# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS Rule Uruguay 1924 1926 - Apr 1 0:00 0 - Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS -# Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman. +# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - -# Whitman gives 1937 Oct 3; go with Shanks. +# Whitman gives 1937 Oct 3; go with Shanks & Pottenger. Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, -# and 1943 Apr 13 ``to present time''; go with Shanks. -Rule Uruguay 1941 only - Aug 1 0:00 0 - -Rule Uruguay 1942 only - Jan 1 0:00 0:30 HS +# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger. +Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS +Rule Uruguay 1942 only - Jan 1 0:00 0 - Rule Uruguay 1942 only - Dec 14 0:00 1:00 S Rule Uruguay 1943 only - Mar 14 0:00 0 - Rule Uruguay 1959 only - May 24 0:00 1:00 S @@ -1036,7 +1043,7 @@ Rule Uruguay 1988 only - Mar 14 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 S Rule Uruguay 1989 only - Mar 12 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 S -# Shanks says no DST was observed in 1990/1 and 1991/2, +# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S |