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northamerica (149590) northamerica (153670)
1# @(#)northamerica 7.79
1# @(#)northamerica 7.82
2# also includes Central America and the Caribbean
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (1999-03-22):
9# A reliable and entertaining source about time zones is

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239
240# From Dave Cantor (2004-11-02):
241# Early this summer I had the occasion to visit the Mount Washington
242# Observatory weather station atop (of course!) Mount Washington [, NH]....
243# One of the staff members said that the station was on Eastern Standard Time
244# and didn't change their clocks for Daylight Saving ... so that their
245# reports will always have times which are 5 hours behind UTC.
246
2# also includes Central America and the Caribbean
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (1999-03-22):
9# A reliable and entertaining source about time zones is

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239
240# From Dave Cantor (2004-11-02):
241# Early this summer I had the occasion to visit the Mount Washington
242# Observatory weather station atop (of course!) Mount Washington [, NH]....
243# One of the staff members said that the station was on Eastern Standard Time
244# and didn't change their clocks for Daylight Saving ... so that their
245# reports will always have times which are 5 hours behind UTC.
246
247# From Paul Eggert (2005-08-26):
248# According to today's Huntsville Times
249# <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1>
250# a few towns on Alabama's "eastern border with Georgia, such as Phenix City
251# in Russell County, Lanett in Chambers County and some towns in Lee County,
252# set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
253# Roberts, city administrator in Phenix City. as saying "We are in the Central
254# time zone, but we do go by the Eastern time zone because so many people work
255# in Columbus."
256
247# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
248Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
249Rule NYC 1920 only - Oct lastSun 2:00 0 S
250Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
251Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
252Rule NYC 1955 1966 - Oct lastSun 2:00 0 S
253# Zone NAME GMTOFF RULES FORMAT [UNTIL]
254Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58

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1800# Cuba is not going back to standard time this year.
1801# From Paul Eggert (2004-10-28):
1802# http://www.granma.cu/ingles/2004/septiembre/juev30/41medid-i.html
1803# says that it's due to a problem at the Antonio Guiteras
1804# thermoelectric plant, and says "This October there will be no return
1805# to normal hours (after daylight saving time)".
1806# For now, let's assume that it's a one-year temporary measure.
1807
257# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
258Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
259Rule NYC 1920 only - Oct lastSun 2:00 0 S
260Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
261Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
262Rule NYC 1955 1966 - Oct lastSun 2:00 0 S
263# Zone NAME GMTOFF RULES FORMAT [UNTIL]
264Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58

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1810# Cuba is not going back to standard time this year.
1811# From Paul Eggert (2004-10-28):
1812# http://www.granma.cu/ingles/2004/septiembre/juev30/41medid-i.html
1813# says that it's due to a problem at the Antonio Guiteras
1814# thermoelectric plant, and says "This October there will be no return
1815# to normal hours (after daylight saving time)".
1816# For now, let's assume that it's a one-year temporary measure.
1817
1818# From Carlos A. Carnero Delgado (2005-11-12):
1819# This year (just like in 2004-2005) there's no change in time zone
1820# adjustment in Cuba. We will stay in daylight saving time:
1821# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
1822
1808# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1809Rule Cuba 1928 only - Jun 10 0:00 1:00 D
1810Rule Cuba 1928 only - Oct 10 0:00 0 S
1811Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
1812Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
1813Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
1814Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
1815Rule Cuba 1965 only - Jun 1 0:00 1:00 D

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1830Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
1831Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D
1832Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
1833Rule Cuba 1996 only - Oct 6 0:00s 0 S
1834Rule Cuba 1997 only - Oct 12 0:00s 0 S
1835Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
1836Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S
1837Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D
1823# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1824Rule Cuba 1928 only - Jun 10 0:00 1:00 D
1825Rule Cuba 1928 only - Oct 10 0:00 0 S
1826Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
1827Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
1828Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
1829Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
1830Rule Cuba 1965 only - Jun 1 0:00 1:00 D

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1845Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
1846Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D
1847Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
1848Rule Cuba 1996 only - Oct 6 0:00s 0 S
1849Rule Cuba 1997 only - Oct 12 0:00s 0 S
1850Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
1851Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S
1852Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D
1838Rule Cuba 2005 max - Oct lastSun 0:00s 0 S
1853Rule Cuba 2006 max - Oct lastSun 0:00s 0 S
1839
1840# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1841Zone America/Havana -5:29:28 - LMT 1890
1842 -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
1843 -5:00 Cuba C%sT
1844
1845# Dominica
1846# Zone NAME GMTOFF RULES FORMAT [UNTIL]

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2016# and elsewhere, says (fifth paragraph, translated from Spanish): "The last
2017# time that a change of clocks was applied to save energy was in the year 2000
2018# during the Arnoldo Aleman administration."...
2019# The northamerica file says that Nicaragua has been on UTC-6 continuously
2020# since December 1998. I wasn't able to find any details of Nicaraguan time
2021# changes in 2000. Perhaps a note could be added to the northamerica file, to
2022# the effect that we have indirect evidence that DST was observed in 2000.
2023#
1854
1855# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1856Zone America/Havana -5:29:28 - LMT 1890
1857 -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
1858 -5:00 Cuba C%sT
1859
1860# Dominica
1861# Zone NAME GMTOFF RULES FORMAT [UNTIL]

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2031# and elsewhere, says (fifth paragraph, translated from Spanish): "The last
2032# time that a change of clocks was applied to save energy was in the year 2000
2033# during the Arnoldo Aleman administration."...
2034# The northamerica file says that Nicaragua has been on UTC-6 continuously
2035# since December 1998. I wasn't able to find any details of Nicaraguan time
2036# changes in 2000. Perhaps a note could be added to the northamerica file, to
2037# the effect that we have indirect evidence that DST was observed in 2000.
2038#
2039# From Jesper Norgaard Welen (2005-11-02):
2040# Nicaragua left DST the 2005-10-02 at 00:00 (local time).
2041# http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
2042# (2005-09-26)
2043#
2024# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2025Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
2026Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
2044# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2045Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
2046Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
2027Rule Nic 1992 only - Jan 1 4:00 1:00 D
2047Rule Nic 1992 only - Jan 1 4:00 1:00 D
2028Rule Nic 1992 only - Sep 24 0:00 0 S
2029Rule Nic 2005 only - Apr 10 0:00 1:00 D
2048Rule Nic 1992 only - Sep 24 0:00 0 S
2049Rule Nic 2005 only - Apr 10 0:00 1:00 D
2030Rule Nic 2005 only - Sep 18 0:00 0 S
2050Rule Nic 2005 only - Oct 2 0:00 0 S
2031# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2032Zone America/Managua -5:45:08 - LMT 1890
2033 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time?
2034 -6:00 - CST 1973 May
2035 -5:00 - EST 1975 Feb 16
2036 -6:00 Nic C%sT 1993 Jan 1 4:00
2037 -5:00 - EST 1998 Dec
2038 -6:00 Nic C%sT

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2051# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2052Zone America/Managua -5:45:08 - LMT 1890
2053 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time?
2054 -6:00 - CST 1973 May
2055 -5:00 - EST 1975 Feb 16
2056 -6:00 Nic C%sT 1993 Jan 1 4:00
2057 -5:00 - EST 1998 Dec
2058 -6:00 Nic C%sT

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