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Diffstat (limited to 'contrib/tzdata/southamerica')
| -rw-r--r-- | contrib/tzdata/southamerica | 430 |
1 files changed, 280 insertions, 150 deletions
diff --git a/contrib/tzdata/southamerica b/contrib/tzdata/southamerica index 2049177..9784044 100644 --- a/contrib/tzdata/southamerica +++ b/contrib/tzdata/southamerica @@ -47,28 +47,28 @@ # AR was chosen because they are the ISO letters that represent Argentina. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Arg 1930 only - Dec 1 0:00 1:00 S +Rule Arg 1930 only - Dec 1 0:00 1:00 - Rule Arg 1931 only - Apr 1 0:00 0 - -Rule Arg 1931 only - Oct 15 0:00 1:00 S +Rule Arg 1931 only - Oct 15 0:00 1:00 - Rule Arg 1932 1940 - Mar 1 0:00 0 - -Rule Arg 1932 1939 - Nov 1 0:00 1:00 S -Rule Arg 1940 only - Jul 1 0:00 1:00 S +Rule Arg 1932 1939 - Nov 1 0:00 1:00 - +Rule Arg 1940 only - Jul 1 0:00 1:00 - Rule Arg 1941 only - Jun 15 0:00 0 - -Rule Arg 1941 only - Oct 15 0:00 1:00 S +Rule Arg 1941 only - Oct 15 0:00 1:00 - Rule Arg 1943 only - Aug 1 0:00 0 - -Rule Arg 1943 only - Oct 15 0:00 1:00 S +Rule Arg 1943 only - Oct 15 0:00 1:00 - Rule Arg 1946 only - Mar 1 0:00 0 - -Rule Arg 1946 only - Oct 1 0:00 1:00 S +Rule Arg 1946 only - Oct 1 0:00 1:00 - Rule Arg 1963 only - Oct 1 0:00 0 - -Rule Arg 1963 only - Dec 15 0:00 1:00 S +Rule Arg 1963 only - Dec 15 0:00 1:00 - Rule Arg 1964 1966 - Mar 1 0:00 0 - -Rule Arg 1964 1966 - Oct 15 0:00 1:00 S +Rule Arg 1964 1966 - Oct 15 0:00 1:00 - Rule Arg 1967 only - Apr 2 0:00 0 - -Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S +Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - -Rule Arg 1974 only - Jan 23 0:00 1:00 S +Rule Arg 1974 only - Jan 23 0:00 1:00 - Rule Arg 1974 only - May 1 0:00 0 - -Rule Arg 1988 only - Dec 1 0:00 1:00 S +Rule Arg 1988 only - Dec 1 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # These corrections were contributed by InterSoft Argentina S.A., @@ -76,7 +76,7 @@ Rule Arg 1988 only - Dec 1 0:00 1:00 S # Talleres de Hidrografía Naval Argentina # (Argentine Naval Hydrography Institute) Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - -Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S +Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # From this moment on, the law that mandated the daylight saving @@ -87,7 +87,7 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, # which did not result in the switch of a time zone, as they stayed 9 hours # from the International Date Line. -Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S +Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - # From Paul Eggert (2007-12-28): # DST was set to expire on March 5, not March 3, but since it was converted # to standard time on March 3 it's more convenient for us to pretend that @@ -190,9 +190,9 @@ Rule Arg 2000 only - Mar 3 0:00 0 - # la modificación del huso horario, ya que 2009 nos encuentra con # crecimiento en la producción y distribución energética." -Rule Arg 2007 only - Dec 30 0:00 1:00 S +Rule Arg 2007 only - Dec 30 0:00 1:00 - Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - -Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S +Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing @@ -202,12 +202,14 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # 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 (2014-08-09): +# From Paul Eggert (2018-01-31): # Hora de verano para la República Argentina # http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html # 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 & Pottenger. +# over Shanks & Pottenger. It is upward compatible with Milne, who +# says Córdoba time was -4:16:48.2. + # # From Mariano Absatz (2004-06-05): # These media articles from a major newspaper mostly cover the current state: @@ -381,9 +383,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # rules...San Luis is still using "Western ARgentina Time" and it got # stuck on Summer daylight savings time even though the summer is over. -# From Paul Eggert (2013-09-05): +# From Paul Eggert (2018-01-23): # Perhaps San Luis operates on the legal fiction that it is at -04 -# with perpetual summer time, but ordinary usage typically seems to +# with perpetual daylight saving time, but ordinary usage typically seems to # just say it's at -03; see, for example, # https://es.wikipedia.org/wiki/Hora_oficial_argentina # We've documented similar situations as being plain changes to @@ -392,9 +394,6 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # plus is that this silences a zic complaint that there's no POSIX TZ # setting for time stamps past 2038. -# From Paul Eggert (2013-02-21): -# Milne says Córdoba time was -4:16:48.2. Round to the nearest second. - # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), @@ -529,7 +528,7 @@ Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 # San Luis (SL) Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - -Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S +Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May @@ -771,14 +770,14 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree 20,466 <http://pcdsh01.on.br/HV20466.htm> (1931-10-01) # Decree 21,896 <http://pcdsh01.on.br/HV21896.htm> (1932-01-10) -Rule Brazil 1931 only - Oct 3 11:00 1:00 S +Rule Brazil 1931 only - Oct 3 11:00 1:00 - Rule Brazil 1932 1933 - Apr 1 0:00 0 - -Rule Brazil 1932 only - Oct 3 0:00 1:00 S +Rule Brazil 1932 only - Oct 3 0:00 1:00 - # Decree 23,195 <http://pcdsh01.on.br/HV23195.htm> (1933-10-10) # revoked DST. # Decree 27,496 <http://pcdsh01.on.br/HV27496.htm> (1949-11-24) # Decree 27,998 <http://pcdsh01.on.br/HV27998.htm> (1950-04-13) -Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S +Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - Rule Brazil 1950 only - Apr 16 1:00 0 - Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 <http://pcdsh01.on.br/HV32308.htm> (1953-02-24) @@ -790,51 +789,51 @@ Rule Brazil 1953 only - Mar 1 0:00 0 - # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 <http://pcdsh01.on.br/HV53071.htm> (1963-12-03) # extended the above decree to all of the national territory on 12-09. -Rule Brazil 1963 only - Dec 9 0:00 1:00 S +Rule Brazil 1963 only - Dec 9 0:00 1:00 - # Decree 53,604 <http://pcdsh01.on.br/HV53604.htm> (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 <http://pcdsh01.on.br/HV55639.htm> (1965-01-27) -Rule Brazil 1965 only - Jan 31 0:00 1:00 S +Rule Brazil 1965 only - Jan 31 0:00 1:00 - Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 <http://pcdsh01.on.br/HV57303.htm> (1965-11-22) -Rule Brazil 1965 only - Dec 1 0:00 1:00 S +Rule Brazil 1965 only - Dec 1 0:00 1:00 - # Decree 57,843 <http://pcdsh01.on.br/HV57843.htm> (1966-02-18) Rule Brazil 1966 1968 - Mar 1 0:00 0 - -Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S +Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - # Decree 63,429 <http://pcdsh01.on.br/HV63429.htm> (1968-10-15) # revoked DST. # Decree 91,698 <http://pcdsh01.on.br/HV91698.htm> (1985-09-27) -Rule Brazil 1985 only - Nov 2 0:00 1:00 S +Rule Brazil 1985 only - Nov 2 0:00 1:00 - # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) -Rule Brazil 1986 only - Oct 25 0:00 1:00 S +Rule Brazil 1986 only - Oct 25 0:00 1:00 - Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 <http://pcdsh01.on.br/HV94922.htm> (1987-09-22) -Rule Brazil 1987 only - Oct 25 0:00 1:00 S +Rule Brazil 1987 only - Oct 25 0:00 1:00 - Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 <http://pcdsh01.on.br/HV96676.htm> (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) -Rule Brazil 1988 only - Oct 16 0:00 1:00 S +Rule Brazil 1988 only - Oct 16 0:00 1:00 - Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 <http://pcdsh01.on.br/HV98077.htm> (1989-08-21) # with the same exceptions -Rule Brazil 1989 only - Oct 15 0:00 1:00 S +Rule Brazil 1989 only - Oct 15 0:00 1:00 - Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 <http://pcdsh01.on.br/HV99530.htm> (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. -Rule Brazil 1990 only - Oct 21 0:00 1:00 S +Rule Brazil 1990 only - Oct 21 0:00 1:00 - Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree <http://pcdsh01.on.br/HV1991.htm> (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. -Rule Brazil 1991 only - Oct 20 0:00 1:00 S +Rule Brazil 1991 only - Oct 20 0:00 1:00 - Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree <http://pcdsh01.on.br/HV1992.htm> (1992-10-16) # adopted by same states. -Rule Brazil 1992 only - Oct 25 0:00 1:00 S +Rule Brazil 1992 only - Oct 25 0:00 1:00 - Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 <http://pcdsh01.on.br/HV942.htm> (1993-09-28) # adopted by same states, plus AM. @@ -844,12 +843,12 @@ Rule Brazil 1993 only - Jan 31 0:00 0 - # adopted by same states, plus MT and TO. # Decree 1,674 <http://pcdsh01.on.br/HV1674.htm> (1995-10-13) # adds AL, SE. -Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S +Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 <http://pcdsh01.on.br/HV2000.htm> (1996-09-04) # adopted by same states, minus AL, SE. -Rule Brazil 1996 only - Oct 6 0:00 1:00 S +Rule Brazil 1996 only - Oct 6 0:00 1:00 - Rule Brazil 1997 only - Feb 16 0:00 0 - # From Daniel C. Sobral (1998-02-12): # In 1997, the DS began on October 6. The stated reason was that @@ -859,19 +858,19 @@ Rule Brazil 1997 only - Feb 16 0:00 0 - # to help dealing with the shortages of electric power. # # Decree 2,317 (1997-09-04), adopted by same states. -Rule Brazil 1997 only - Oct 6 0:00 1:00 S +Rule Brazil 1997 only - Oct 6 0:00 1:00 - # Decree 2,495 <http://pcdsh01.on.br/figuras/HV2495.JPG> # (1998-02-10) Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 <http://pcdsh01.on.br/figuras/Hv98.jpg> (1998-09-11) # adopted by the same states as before. -Rule Brazil 1998 only - Oct 11 0:00 1:00 S +Rule Brazil 1998 only - Oct 11 0:00 1:00 - Rule Brazil 1999 only - Feb 21 0:00 0 - # Decree 3,150 <http://pcdsh01.on.br/figuras/HV3150.gif> # (1999-08-23) adopted by same states. # Decree 3,188 <http://pcdsh01.on.br/DecHV99.gif> (1999-09-30) # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. -Rule Brazil 1999 only - Oct 3 0:00 1:00 S +Rule Brazil 1999 only - Oct 3 0:00 1:00 - Rule Brazil 2000 only - Feb 27 0:00 0 - # Decree 3,592 <http://pcdsh01.on.br/DEC3592.htm> (2000-09-06) # adopted by the same states as before. @@ -881,34 +880,34 @@ Rule Brazil 2000 only - Feb 27 0:00 0 - # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. # Decree 3,916 <http://pcdsh01.on.br/figuras/HV3916.gif> # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. -Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S +Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. # 4,399 <http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm> -Rule Brazil 2002 only - Nov 3 0:00 1:00 S +Rule Brazil 2002 only - Nov 3 0:00 1:00 - # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. # 4,844 <http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm> -Rule Brazil 2003 only - Oct 19 0:00 1:00 S +Rule Brazil 2003 only - Oct 19 0:00 1:00 - # Decree 5,223 (2004-10-01) reestablishes DST in MT. # 5,223 <http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm> -Rule Brazil 2004 only - Nov 2 0:00 1:00 S +Rule Brazil 2004 only - Nov 2 0:00 1:00 - # Decree 5,539 <http://pcdsh01.on.br/DecHV5539.gif> (2005-09-19), # adopted by the same states as before. -Rule Brazil 2005 only - Oct 16 0:00 1:00 S +Rule Brazil 2005 only - Oct 16 0:00 1:00 - # Decree 5,920 <http://pcdsh01.on.br/DecHV5920.gif> (2006-10-03), # adopted by the same states as before. -Rule Brazil 2006 only - Nov 5 0:00 1:00 S +Rule Brazil 2006 only - Nov 5 0:00 1:00 - Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree 6,212 <http://pcdsh01.on.br/DecHV6212.gif> (2007-09-26), # adopted by the same states as before. -Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S +Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - # From Frederico A. C. Neves (2008-09-10): # According to this decree # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the # 3rd Feb Sunday. There is an exception on the return date when this is # the Carnival Sunday then the return date will be the next Sunday... -Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 S +Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - # Decree 7,584 <http://pcdsh01.on.br/HVdecreto7584_20111013.jpg> (2011-10-13) # added Bahia. @@ -926,7 +925,7 @@ Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm -Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 S +Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - @@ -1233,28 +1232,28 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # For now, assume that they will not revert. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Chile 1927 1931 - Sep 1 0:00 1:00 S +Rule Chile 1927 1931 - Sep 1 0:00 1:00 - Rule Chile 1928 1932 - Apr 1 0:00 0 - -Rule Chile 1968 only - Nov 3 4:00u 1:00 S +Rule Chile 1968 only - Nov 3 4:00u 1:00 - Rule Chile 1969 only - Mar 30 3:00u 0 - -Rule Chile 1969 only - Nov 23 4:00u 1:00 S +Rule Chile 1969 only - Nov 23 4:00u 1:00 - Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - -Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - -Rule Chile 1973 only - Sep 30 4:00u 1:00 S -Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1973 only - Sep 30 4:00u 1:00 - +Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - -Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S -Rule Chile 1990 only - Sep 16 4:00u 1:00 S +Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - +Rule Chile 1990 only - Sep 16 4:00u 1:00 - Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - -Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - -Rule Chile 1998 only - Sep 27 4:00u 1:00 S +Rule Chile 1998 only - Sep 27 4:00u 1:00 - Rule Chile 1999 only - Apr 4 3:00u 0 - -Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. @@ -1262,11 +1261,11 @@ Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - -Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S +Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - -Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S +Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2016 max - May Sun>=9 3:00u 0 - -Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S +Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1331,7 +1330,7 @@ Zone Antarctica/Palmer 0 - -00 1965 # "A variation of fifteen minutes in the public clocks of Bogota is not rare." # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule CO 1992 only - May 3 0:00 1:00 S +Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 @@ -1391,7 +1390,7 @@ Link America/Curacao America/Kralendijk # Caribbean Netherlands # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Ecuador 1992 only - Nov 28 0:00 1:00 S +Rule Ecuador 1992 only - Nov 28 0:00 1:00 - Rule Ecuador 1993 only - Feb 5 0:00 0 - # # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1481,22 +1480,22 @@ Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno # the maintainers of the database to inform them we're adopting # the same policy this year and suggest recommendations for future years. # -# For now we will assume permanent summer time for the Falklands +# For now we will assume permanent -03 for the Falklands # until advised differently (to apply for 2012 and beyond, after the 2011 # experiment was apparently successful.) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S +Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - -Rule Falk 1939 only - Oct 1 0:00 1:00 S -Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S +Rule Falk 1939 only - Oct 1 0:00 1:00 - +Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - Rule Falk 1943 only - Jan 1 0:00 0 - -Rule Falk 1983 only - Sep lastSun 0:00 1:00 S +Rule Falk 1983 only - Sep lastSun 0:00 1:00 - Rule Falk 1984 1985 - Apr lastSun 0:00 0 - -Rule Falk 1984 only - Sep 16 0:00 1:00 S -Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S +Rule Falk 1984 only - Sep 16 0:00 1:00 - +Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - -Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S +Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time @@ -1531,16 +1530,16 @@ Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown # adjust their clocks at 0 hour of the given dates. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Para 1975 1988 - Oct 1 0:00 1:00 S +Rule Para 1975 1988 - Oct 1 0:00 1:00 - Rule Para 1975 1978 - Mar 1 0:00 0 - Rule Para 1979 1991 - Apr 1 0:00 0 - -Rule Para 1989 only - Oct 22 0:00 1:00 S -Rule Para 1990 only - Oct 1 0:00 1:00 S -Rule Para 1991 only - Oct 6 0:00 1:00 S +Rule Para 1989 only - Oct 22 0:00 1:00 - +Rule Para 1990 only - Oct 1 0:00 1:00 - +Rule Para 1991 only - Oct 6 0:00 1:00 - Rule Para 1992 only - Mar 1 0:00 0 - -Rule Para 1992 only - Oct 5 0:00 1:00 S +Rule Para 1992 only - Oct 5 0:00 1:00 - Rule Para 1993 only - Mar 31 0:00 0 - -Rule Para 1993 1995 - Oct 1 0:00 1:00 S +Rule Para 1993 1995 - Oct 1 0:00 1:00 - Rule Para 1994 1995 - Feb lastSun 0:00 0 - Rule Para 1996 only - Mar 1 0:00 0 - # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. @@ -1558,7 +1557,7 @@ Rule Para 1996 only - Mar 1 0:00 0 - # year, the time will change on the first Sunday of October; likewise, the # clock will be set back on the first Sunday of March. # -Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S +Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but @@ -1569,7 +1568,7 @@ Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - -Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S +Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - # # From Jesper Nørgaard Welen (2005-01-02): # There are several sources that claim that Paraguay made @@ -1578,7 +1577,7 @@ Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) # http://www.presidencia.gov.py/decretos/D1867.pdf -Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S +Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): # By decree number 3958 issued yesterday @@ -1591,7 +1590,7 @@ Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... -Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S +Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): @@ -1624,16 +1623,16 @@ Zone America/Asuncion -3:50:40 - LMT 1890 # 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 +Rule Peru 1938 only - Jan 1 0:00 1:00 - Rule Peru 1938 only - Apr 1 0:00 0 - -Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S +Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - -Rule Peru 1986 1987 - Jan 1 0:00 1:00 S +Rule Peru 1986 1987 - Jan 1 0:00 1:00 - Rule Peru 1986 1987 - Apr 1 0:00 0 - -Rule Peru 1990 only - Jan 1 0:00 1:00 S +Rule Peru 1990 only - Jan 1 0:00 1:00 - Rule Peru 1990 only - Apr 1 0:00 0 - # 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 - Jan 1 0:00 1:00 - Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 @@ -1679,72 +1678,201 @@ Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. -# From Shanks & Pottenger: +# +# From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael +# Deckers (2018-02-20): +# ... At least they kept good records... +# +# http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 +# Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and +# Meteorology Service of the Uruguayan Navy, seems to give many transitions +# with greater clarity than we've had before. It directly references many laws +# and decrees which are, in turn, referenced below. They can be viewed in the +# public archives of the Diario Oficial (in Spanish) at +# http://www.impo.com.uy/diariooficial/ +# +# Ley No. 3920 of 1908-06-10 placed the determination of legal time under the +# auspices of the National Institute for the Prediction of Time. It is unclear +# exactly what offset was used during this period, though Ley No. 7200 of +# 1920-04-23 used the Observatory of the National Meteorological Institute in +# Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, +# retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, +# resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on +# page 725 of the Proceedings of the Second Pan-American Scientific Congress, +# 1915-1916) was in use, and merely became official from 1908-06-10. +# https://www.impo.com.uy/diariooficial/1908/06/18/12 +# https://www.impo.com.uy/diariooficial/1920/04/27/9 +# +# Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced +# by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 +# minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the +# National Council of Administration the same day, published directly below the +# law in the Diario Oficial, specified the first transition to be 1923-09-30 +# 24:00. This effectively established standard time at UT-03:30 with 30 +# minutes DST. Assume transitions at 24:00 on the specified days until Ley No. +# 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other +# provisions which oppose" it, resulting in year-round UT-03:30; a Resolución +# of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it +# would have been under the previous law. +# https://www.impo.com.uy/diariooficial/1923/07/02/2 +# https://www.impo.com.uy/diariooficial/1926/03/10/2 +# https://www.impo.com.uy/diariooficial/1926/03/18/2 +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. -Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS +Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - 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 & 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 & 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 & 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 +# From Tim Parenti (2018-02-15): +# http://www.impo.com.uy/diariooficial/1933/10/27/6 +# +# It appears Ley No. 9122 of 1933 was never published as such in the Diario +# Oficial, but instead appeared as Document 26 in the Diario on Friday +# 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of +# National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the +# last Sunday of October...until the last Saturday of March." In accordance +# with this provision, the first transition was explicitly specified in Article +# 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 +# at 00:00. Assume transitions at 00:00 Sunday throughout. +# +# Departing from the matter-of-fact nature of previous timekeeping laws, the +# 1933 decree "consider[s] the advantages of...the advance of legal time": +# +# "Whereas: The measure adopted by almost all nations at the time of the last +# World War still persists in North America and Europe, precisely because of +# the economic, hygienic, and social advantages derived from such an +# emergency measure... +# +# Whereas: The advance of the legal time during the summer seasons, by +# displacing social activity near sunrise, favors the citizen populations +# and especially the society that creates and works..." +# +# It further specified that "necessary measures" be taken to ensure that +# "public spectacles finish, in general, before [01:00]." +Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - +Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - +# From Tim Parenti (2018-02-15): +# Most of the Rules below, and their contemporaneous Zone lines, have been +# updated simply to match the Almanaque 2018. Although the document does not +# list exact transition times, midnight transitions were already present in our +# data here for all transitions through 2004-09, and this is both consistent +# with prior transitions and verified in several decrees marked below between +# 1939-09 and 2004-09, wherein the relevant text was typically of the form: +# +# "From 0 hours on [date], the legal time of the entire Republic will be... +# +# In accordance with [the preceding], on [previous date] at 24 hours, all +# clocks throughout the Republic will be [advanced/retarded] by..." +# +# It is possible that there is greater specificity to be found for the Rules +# below, but it is buried in no fewer than 40 different decrees individually +# referenced by the Almanaque for the period from 1939-09 to 2014-09. +# Four-fifths of these were promulgated less than two weeks before taking +# effect; more than half within a week and none more than 5 weeks. Only the +# handful with comments below have been checked with any thoroughness. +Rule Uruguay 1939 only - Oct 1 0:00 0:30 - +Rule Uruguay 1940 only - Oct 27 0:00 0:30 - +# From Tim Parenti (2018-02-15): +# Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified +# UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". +# http://www.impo.com.uy/diariooficial/1941/08/04/1 +Rule Uruguay 1941 only - Aug 1 0:00 0:30 - +# From Tim Parenti (2018-02-15): +# Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified +# further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks +# never went back to UT-03:30 thereafter, this is modeled as advancing standard +# time by 30 minutes to UT-03, while retaining 30 minutes of DST. +# http://www.impo.com.uy/diariooficial/1942/12/16/3 +Rule Uruguay 1942 only - Dec 14 0:00 0:30 - Rule Uruguay 1943 only - Mar 14 0:00 0 - -Rule Uruguay 1959 only - May 24 0:00 1:00 S +Rule Uruguay 1959 only - May 24 0:00 0:30 - Rule Uruguay 1959 only - Nov 15 0:00 0 - -Rule Uruguay 1960 only - Jan 17 0:00 1:00 S +Rule Uruguay 1960 only - Jan 17 0:00 1:00 - Rule Uruguay 1960 only - Mar 6 0:00 0 - -Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S +Rule Uruguay 1965 only - Apr 4 0:00 1:00 - Rule Uruguay 1965 only - Sep 26 0:00 0 - -Rule Uruguay 1966 1967 - Oct 31 0:00 0 - -Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS -Rule Uruguay 1968 1970 - Dec 2 0:00 0 - -Rule Uruguay 1972 only - Apr 24 0:00 1:00 S -Rule Uruguay 1972 only - Aug 15 0:00 0 - -Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS -Rule Uruguay 1974 only - Dec 22 0:00 1:00 S -Rule Uruguay 1976 only - Oct 1 0:00 0 - -Rule Uruguay 1977 only - Dec 4 0:00 1:00 S -Rule Uruguay 1978 only - Apr 1 0:00 0 - -Rule Uruguay 1979 only - Oct 1 0:00 1:00 S -Rule Uruguay 1980 only - May 1 0:00 0 - -Rule Uruguay 1987 only - Dec 14 0:00 1:00 S -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 & 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 -Rule Uruguay 1992 only - Oct 18 0:00 1:00 S +# From Tim Parenti (2018-02-15): +# Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the +# day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. +# http://www.impo.com.uy/diariooficial/1968/05/30/5 +Rule Uruguay 1968 only - May 27 0:00 0:30 - +Rule Uruguay 1968 only - Dec 1 0:00 0 - +# From Tim Parenti (2018-02-15): +# Decreto 188/970 of 1970-04-23 instituted restrictions on electricity +# consumption "as a consequence of the current rainfall regime in the country". +# Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. +# http://www.impo.com.uy/diariooficial/1970/04/29/4 +Rule Uruguay 1970 only - Apr 25 0:00 1:00 - +Rule Uruguay 1970 only - Jun 14 0:00 0 - +Rule Uruguay 1972 only - Apr 23 0:00 1:00 - +Rule Uruguay 1972 only - Jul 16 0:00 0 - +# From Tim Parenti (2018-02-15): +# Decreto 29/974 of 1974-01-11, citing "the international rise in the price of +# oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of +# 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 +# minutes followed in Decreto 679/974 of 1974-08-29. +# http://www.impo.com.uy/diariooficial/1974/01/22/11 +# http://www.impo.com.uy/diariooficial/1974/03/14/3 +# http://www.impo.com.uy/diariooficial/1974/09/04/6 +Rule Uruguay 1974 only - Jan 13 0:00 1:30 - +Rule Uruguay 1974 only - Mar 10 0:00 0:30 - +Rule Uruguay 1974 only - Sep 1 0:00 0 - +Rule Uruguay 1974 only - Dec 22 0:00 1:00 - +Rule Uruguay 1975 only - Mar 30 0:00 0 - +Rule Uruguay 1976 only - Dec 19 0:00 1:00 - +Rule Uruguay 1977 only - Mar 6 0:00 0 - +Rule Uruguay 1977 only - Dec 4 0:00 1:00 - +Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - +Rule Uruguay 1978 only - Dec 17 0:00 1:00 - +Rule Uruguay 1979 only - Apr 29 0:00 1:00 - +Rule Uruguay 1980 only - Mar 16 0:00 0 - +# From Tim Parenti (2018-02-15): +# Decreto 725/987 of 1987-12-04 cited "better use of national tourist +# attractions" to advance clocks one hour from Monday 1987-12-14 00:00. +# http://www.impo.com.uy/diariooficial/1988/01/25/1 +Rule Uruguay 1987 only - Dec 14 0:00 1:00 - +Rule Uruguay 1988 only - Feb 28 0:00 0 - +Rule Uruguay 1988 only - Dec 11 0:00 1:00 - +Rule Uruguay 1989 only - Mar 5 0:00 0 - +Rule Uruguay 1989 only - Oct 29 0:00 1:00 - +Rule Uruguay 1990 only - Feb 25 0:00 0 - +# From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): +# IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the +# 1992/1993 season appears to be the first in over half a century where DST +# both began and ended pursuant to the same decree. +Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - +Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - +Rule Uruguay 1992 only - Oct 18 0:00 1:00 - Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): # The Uruguayan government has decreed a change in the local time.... -# http://www.presidencia.gub.uy/decretos/2004091502.htm -Rule Uruguay 2004 only - Sep 19 0:00 1:00 S +# From Tim Parenti (2018-02-15): +# Decreto 328/004 of 2004-09-15. +# http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 +Rule Uruguay 2004 only - Sep 19 0:00 1:00 - # From Steffen Thorsen (2005-03-11): # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to # save energy ... it was postponed two weeks.... -# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm +# From Tim Parenti (2018-02-15): +# This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous +# reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending +# Decreto 328/004: +# http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 +# The original decree specified a transition of 2005-03-12 24:00, but the new +# one specified 2005-03-27 02:00. Rule Uruguay 2005 only - Mar 27 2:00 0 - # From Eduardo Cota (2005-09-27): -# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF -# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at -# 02:00 local time, official time in Uruguay will be at GMT -2. -Rule Uruguay 2005 only - Oct 9 2:00 1:00 S -Rule Uruguay 2006 only - Mar 12 2:00 0 - -# From Jesper Nørgaard Welen (2006-09-06): -# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF -# +# ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, +# official time in Uruguay will be at GMT -2. +# From Tim Parenti (2018-02-15): +# Decreto 318/005 of 2005-09-19. +# http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 +Rule Uruguay 2005 only - Oct 9 2:00 1:00 - +Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - +# From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): +# Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday +# of October at 02:00 through the second Sunday of March at 02:00. Almanaque +# 2018 appears to have a few typoed dates through this period; ignore them. +# http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 +Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - # From Steffen Thorsen (2015-06-30): # ... it looks like they will not be using DST the coming summer: # http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 @@ -1754,17 +1882,19 @@ Rule Uruguay 2006 only - Mar 12 2:00 0 - # instead of out to dinner. # From Pablo Camargo (2015-07-13): # http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf -# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] -Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S -Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - +# From Tim Parenti (2018-02-15): +# Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. # This Zone can be simplified once we assume zic %z. -Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 - -3:44:44 - MMT 1920 May 1 # Montevideo MT +Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 + -3:44:51 - MMT 1920 May 1 # Montevideo MT + -4:00 - -04 1923 Oct 1 -3:30 Uruguay -0330/-03 1942 Dec 14 + -3:00 Uruguay -03/-0230 1960 -3:00 Uruguay -03/-02 1968 - -3:00 Uruguay -03/-0230 1971 + -3:00 Uruguay -03/-0230 1970 -3:00 Uruguay -03/-02 1974 + -3:00 Uruguay -03/-0130 1974 Mar 10 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 |
