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author | Ruslan Ermilov <ru@FreeBSD.org> | 2000-03-29 13:31:51 +0000 |
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committer | Ruslan Ermilov <ru@FreeBSD.org> | 2000-03-29 13:31:51 +0000 |
commit | e64bdc7f2af5c911edeebe8ca37e6fb73ea846ba (patch) | |
tree | 836b6fb026f4c578b04067d97e85ed740b909b59 /share/zoneinfo/northamerica | |
parent | d52b82b0a44af06c5396a0195fa2b76fc8ac983f (diff) | |
download | src-test2-e64bdc7f2af5c911edeebe8ca37e6fb73ea846ba.tar.gz src-test2-e64bdc7f2af5c911edeebe8ca37e6fb73ea846ba.zip |
Notes
Diffstat (limited to 'share/zoneinfo/northamerica')
-rw-r--r-- | share/zoneinfo/northamerica | 231 |
1 files changed, 164 insertions, 67 deletions
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica index 5568a95c1d70..845587fa8205 100644 --- a/share/zoneinfo/northamerica +++ b/share/zoneinfo/northamerica @@ -1,19 +1,29 @@ -# @(#)northamerica 7.42 +# @(#)northamerica 7.51 # also includes Central America and the Caribbean # 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 <eggert@twinsun.com> (1994-08-17): +# From Paul Eggert <eggert@twinsun.com> (1999-03-22): # A reliable and entertaining source about time zones is -# Derek Howse, Greenwich time and the discovery of the longitude, -# Oxford University Press (1980). +# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). ############################################################################### # United States +# From Paul Eggert (1999-03-31): +# Howse writes (pp 121-125) that time zones were invented by +# Professor Charles Ferdinand Dowd (1825-1904), +# Principal of Temple Grove Ladies' Seminary (Saratoga Springs, NY). +# His pamphlet ``A System of National Time for Railroads'' (1870) +# was the result of his proposals at the Convention of Railroad Trunk Lines +# in New York City (1869-10). His 1870 proposal was based on Washington, DC, +# but in 1872-05 he moved the proposed origin to Greenwich. +# His proposal was adopted by the railroads on 1883-11-18 at 12:00, +# and the most of the country soon followed suit. + # From Paul Eggert <eggert@twinsun.com> (1995-12-19): # A good source for time zone historical data in the US is # Thomas G. Shanks, The American Atlas (5th edition), @@ -294,6 +304,11 @@ Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00 # Indiana # +# For a map of Indiana's time zone regions, see: +# <a href="http://www.mccsc.edu/time.html"> +# What time is it in Indiana? +# </a> (1999-04-06) +# # From Paul Eggert (1995-12-19): # Indiana generally observes either EST all year, or CST/CDT, # but areas near Cincinnati and Louisville use those cities' timekeeping @@ -393,15 +408,38 @@ Zone America/Louisville -5:43:02 - LMT 1883 Nov 18 12:00 -5:00 US E%sT 1974 Jan 6 2:00 -6:00 1:00 CDT 1974 Oct 27 2:00 -5:00 US E%sT +# Wayne, Clinton, and Russell Counties, Kentucky +# From +# <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=99-26945-filed"> +# Federal Register Doc. 99-26945 +# </a> (1999-10-14 08:45-04) +# In response to a petition by the Wayne County, Kentucky, Fiscal Court, +# the Department of Transportation (DOT) proposed to move Wayne County, +# Kentucky, from the Central Time Zone to the Eastern Time Zone.... Now +# the earliest date that the proposed change might take effect is +# October 29, 2000. +# +# From +# <a href="http://www.lake-cumberland.com/life/archive/news990129time.shtml"> +# Lake Cumberland LIFE +# </a> (1999-01-29) via WKYM-101.7: +# Clinton County has joined Wayne County in asking the DoT to change from +# the Central to the Eastern time zone.... The Wayne County government made +# the same request in December. And while Russell County officials have not +# taken action, the majority of respondents to a poll conducted there in +# August indicated they would like to change to "fast time" also. +# The three Lake Cumberland counties are the farthest east of any U.S. +# location in the Central time zone. # Michigan # # From Bob Devine (1988-01-28): # Michigan didn't observe DST from 1968 to 1973. # -# From Paul Eggert (1995-12-19): -# Shanks writes that Michigan started using standard time on 1885 Sep 18, -# but Howse (p 126) writes that Detroit kept +# From Paul Eggert (1999-03-31): +# Shanks writes that Michigan started using standard time on 1885-09-18, +# but Howse writes (pp 124-125, referring to Popular Astronomy, 1901-01) +# that Detroit kept # # local time until 1900 when the City Council decreed that clocks should # be put back twenty-eight minutes to Central Standard Time. Half the @@ -466,12 +504,12 @@ Link Pacific/Honolulu HST ################################################################################ -# From Paul Eggert <eggert@twinsun.com> (1996-11-22): +# From Paul Eggert <eggert@twinsun.com> (1999-10-29): # A good source for time zone historical data outside the US is -# Thomas G. Shanks, The International Atlas (4th edition), -# San Diego: ACS Publications, Inc. (1995). +# Thomas G. Shanks, The International Atlas (5th edition), +# San Diego: ACS Publications, Inc. (1999). # -# Gwillim Law <LAW@encmail.encompass.com> writes that a good source +# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries @@ -520,7 +558,7 @@ Link Pacific/Honolulu HST # From Paul Eggert <eggert@twinsun.com> (1994-11-22): # Alas, this sort of thing must be handled by localization software. -# The data for Canada are all from Shanks (1991). +# The data for Canada are all from Shanks. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -666,7 +704,7 @@ Zone America/Glace_Bay -3:59:48 - LMT 1902 Jun 15 # says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT. # Officially Atikokan is therefore on CST/CDT, and most likely this report # concerns a non-official time observed as a matter of local practice. -# For what it's worth, Shanks (1995) says that Atikokan has agreed with +# For what it's worth, Shanks says that Atikokan has agreed with # Rainy River ever since standard time was introduced. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -838,7 +876,7 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # From Paul Eggert (1996-06-12): # Shanks writes that since 1970 most of this region has been like Vancouver. -# Dawswon Creek uses MST. Much of east BC is like Edmonton. +# Dawson Creek uses MST. Much of east BC is like Edmonton. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Vanc 1918 only - Apr 14 2:00 1:00 D @@ -859,11 +897,10 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884 -7:00 - MST -# Northwest Territories, Yukon +# Northwest Territories, Nunavut, Yukon -# From Paul Eggert (1996-10-07): +# From Paul Eggert (1999-10-29): # Dawson switched to PST in 1973. Inuvik switched to MST in 1979. -# Shanks's table for Watson Lake is corrupted, so we have no data there. # Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs: # * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68, # c. 7 defines Yukon standard time as UTC-9. This is still valid; @@ -873,6 +910,56 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884 # * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00. # Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander. +# From Rives McDow (1999-09-04): +# Nunavut ... moved ... to incorporate the whole territory into one time zone. +# <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html"> +# Nunavut moves to single time zone Oct. 31 +# </a> +# +# From Antoine Leca (1999-09-06): +# We then need to create a new timezone for the Kitikmeot region of Nunavut +# to differentiate it from the Yellowknife region. + +# From Paul Eggert (1999-09-20): +# <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html"> +# Basic Facts: The New Territory +# </a> (1999) reports that Pangnirtung operates on Eastern time, +# and that Coral Harbour does not observe DST. We don't know when +# Pangnirtung switched to Eastern time; we'll guess 1995. +# We'll ignore the claim about Coral Harbour for now, +# since we have no further info. + +# From Rives McDow (1999-11-08): +# On October 31, when the rest of Nunavut went to Central time, +# Pangnirtung wobbled. Here is the result of their wobble: +# +# The following businesses and organizations in Pangnirtung use Central Time: +# +# First Air, Power Corp, Nunavut Construction, Health Center, RCMP, +# Eastern Arctic National Parks, A & D Specialist +# +# The following businesses and organizations in Pangnirtung use Eastern Time: +# +# Hamlet office, All other businesses, Both schools, Airport operator +# +# This has made for an interesting situation there, which warranted the news. +# No one there that I spoke with seems concerned, or has plans to +# change the local methods of keeping time, as it evidently does not +# really interfere with any activities or make things difficult locally. +# They plan to celebrate New Year's turn-over twice, one hour apart, +# so it appears that the situation will last at least that long. +# The Nunavut Intergovernmental Affairs hopes that they will "come to +# their senses", but the locals evidently don't see any problem with +# the current state of affairs. + +# From Michaela Rodrigue, writing in the +# <a href="http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html"> +# Nunatsiaq News (1999-11-19)</a>: +# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones, +# central - or Nunavut time - for government offices, and eastern time +# for municipal offices and schools.... Igloolik [was similar but then] +# made the switch to central time on Saturday, Nov. 6. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D Rule NT_YK 1918 only - Oct 27 2:00 0 S @@ -887,11 +974,17 @@ Rule NT_YK 1980 max - Oct lastSun 2:00 0 S Rule NT_YK 1987 max - Apr Sun>=1 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Pangnirtung -4:22:56 - LMT 1884 - -4:00 NT_YK A%sT -Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay - -5:00 NT_YK E%sT + -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 + -5:00 Canada E%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT +Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987 + -5:00 NT_YK E%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT Zone America/Rankin_Inlet -6:08:40 - LMT 1884 -6:00 NT_YK C%sT +Zone America/Cambridge_Bay -7:00:20 - LMT 1884 + -7:00 NT_YK M%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT Zone America/Yellowknife -7:37:24 - LMT 1884 -7:00 NT_YK M%sT Zone America/Inuvik -8:54:00 - LMT 1884 @@ -921,7 +1014,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # The Federal District (where Mexico City is) has observed [DST] several # times but not recently. # -# I don't where to drawn the line in the North Baja area. 28th latitude +# I don't where to draw the line in the North Baja area. 28th latitude # sounds good -- but it may be higher (how far [d]o radio stations from # San Diego affect culture?). # @@ -956,37 +1049,33 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # a zone that's GMT-8 with DST; a zone that's always GMT-7; # a zone that's GMT-6 with DST; and a zone that's always GMT-6. -# From Paul Eggert <eggert@twinsun.com> (1993-11-18): -# Shanks also says there are four zones, but disagrees about the fourth. -# Instead of GMT-6 with DST, he says there's GMT-8 without DST. - # From Alan Perry <alan.perry@eng.sun.com> (1996-02-15): # A guy from our Mexico subsidiary finally found the Presidential Decree # outlining the timezone changes in Mexico. -# +# # ------------- Begin Forwarded Message ------------- -# +# # I finally got my hands on the Official Presidential Decree that sets up the # rules for the DST changes. The rules are: -# +# # 1. The country is divided in 3 timezones: # - Baja California Norte (the Mexico/BajaNorte TZ) # - Baja California Sur, Nayarit, Sinaloa and Sonora (the Mexico/BajaSur TZ) # - The rest of the country (the Mexico/General TZ) -# +# # 2. From the first Sunday in April at 2:00 AM to the last Sunday in October # at 2:00 AM, the times in each zone are as follows: # BajaNorte: GMT+7 # BajaSur: GMT+6 # General: GMT+5 -# +# # 3. The rest of the year, the times are as follows: # BajaNorte: GMT+8 # BajaSur: GMT+7 # General: GMT+6 -# +# # The Decree was published in Mexico's Official Newspaper on January 4th. -# +# # -------------- End Forwarded Message -------------- # From Paul Eggert (1996-06-12): # For an English translation of the decree, see @@ -998,7 +1087,13 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # The State of Quintana Roo has reverted back to central STD and DST times # (i.e. UTC -0600 and -0500 as of 1998-08-02). -# From Shanks (1991): +# From Rives McDow (2000-01-10): +# Effective April 4, 1999 at 2:00 AM local time, Sonora changed to the time +# zone 5 hours from the International Date Line, and will not observe daylight +# savings time so as to stay on the same time zone as the southern part of +# Arizona year round. + +# From Shanks: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mexico 1939 only - Feb 5 0:00 1:00 D Rule Mexico 1939 only - Jun 25 0:00 0 S @@ -1011,12 +1106,11 @@ Rule Mexico 1950 only - Jul 30 0:00 0 S Rule Mexico 1996 max - Apr Sun>=1 2:00 1:00 D Rule Mexico 1996 max - Oct lastSun 2:00 0 S # -Rule BajaN 1950 1966 - Apr lastSun 2:00 1:00 D -Rule BajaN 1950 1961 - Sep lastSun 2:00 0 S -Rule BajaN 1961 1966 - Oct lastSun 2:00 0 S +Rule BajaN 1954 1961 - Apr lastSun 2:00 1:00 D +Rule BajaN 1954 1961 - Sep lastSun 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Quintana Roo -Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 1:12:42 +Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56 -6:00 - CST 1996 -6:00 Mexico C%sT 1997 Oct lastSun 2:00 -5:00 Mexico E%sT 1998 Aug 2 2:00 @@ -1030,7 +1124,7 @@ Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 -7:00 - MST 1932 Mar 30 23:00 -6:00 Mexico C%sT # Chihuahua -Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:44 +Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 @@ -1040,7 +1134,19 @@ Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:44 -6:00 Mexico C%sT 1998 -6:00 - CST 1998 Apr Sun>=1 3:00 -7:00 Mexico M%sT -# S Baja California, Nayarit, Sinaloa, Sonora +# Sonora +Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08 + -7:00 - MST 1927 Jun 10 23:00 + -6:00 - CST 1930 Nov 15 + -7:00 - MST 1931 May 1 23:00 + -6:00 - CST 1931 Oct + -7:00 - MST 1932 Mar 30 23:00 + -6:00 - CST 1942 Apr + -7:00 - MST 1949 Jan 14 + -8:00 - PST 1970 + -7:00 Mexico M%sT 1999 + -7:00 - MST +# S Baja California, Nayarit, Sinaloa Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 @@ -1051,23 +1157,15 @@ Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20 -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 -7:00 Mexico M%sT -# N Baja California +# Baja California Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -8:00 - PST 1927 Jun 10 23:00 -7:00 - MST 1930 Nov 16 -8:00 - PST 1942 Apr -7:00 - MST 1949 Jan 14 - -8:00 BajaN P%sT 1967 Apr lastSun 2:00 + -8:00 BajaN P%sT 1976 -8:00 US P%sT 1996 -8:00 Mexico P%sT -# Baja California -Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32 - -8:00 - PST 1927 Jun 10 23:00 - -7:00 - MST 1930 Nov 16 - -8:00 - PST 1942 Apr - -7:00 - MST 1949 Jan 14 - -8:00 - PST 1996 - -8:00 Mexico P%sT # # Revillagigedo Is # no information @@ -1132,8 +1230,6 @@ Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown -5:00 - EST # Costa Rica -# Shanks gives some very odd dates for 1991, and stops there. -# For now, we won't guess further. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S @@ -1144,23 +1240,24 @@ Rule CR 1992 only - Mar 15 0:00 0 S # There are too many San Joses elsewhere, so we'll use `Costa Rica'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose - -5:36 - SJMT 1921 Jan 15 # San Jose Mean Time + -5:36:20 - SJMT 1921 Jan 15 # San Jose Mean Time -6:00 CR C%sT # Coco # no information; probably like America/Costa_Rica # Cuba -# From Bob Devine (1988-01-28): -# . . .DST is from 2nd Sunday in May to 2nd Sunday in October since 1981. -# Change at midnight. In 1979 & 1980, started at 3rd Sunday in March -# (I think). - -# From U. S. Naval Observatory (1989-01-19): -# CUBA 5 H BEHIND UTC -# CUBA 4 H BEHIND UTC MAR 20 - OCT 8 +# From Arthur David Olson (1999-03-29): +# The 1999-03-28 exhibition baseball game held in Havana, Cuba, between +# the Cuban National Team and the Baltimore Orioles was carried live on +# the Orioles Radio Network, including affiliate WTOP in Washington, DC. +# During the game, play-by-play announcer Jim Hunter noted that +# "We'll be losing two hours of sleep...Cuba switched to Daylight Saving +# Time today." (The "two hour" remark referred to losing one hour of +# sleep on 1999-03-28--when the announcers were in Cuba as it switched +# to DST--and one more hour on 1999-04-04--when the announcers will have +# returned to Baltimore, which switches on that date.) -# From Shanks (1991): # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Cuba 1928 only - Jun 10 0:00 1:00 D Rule Cuba 1928 only - Oct 10 0:00 0 S @@ -1188,13 +1285,13 @@ Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S Rule Cuba 1996 only - Oct 6 0:00s 0 S Rule Cuba 1997 only - Oct 12 0:00s 0 S -Rule Cuba 1998 only - Mar 29 0:00 1:00 D +Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D Rule Cuba 1998 max - Oct lastSun 0:00s 0 S -Rule Cuba 1999 max - Apr Sun>=1 0:00s 1:00 D +Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Havana -5:29:28 - LMT 1890 - -5:30 - HMT 1925 Jul 19 12:00 # Havana MT + -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT -5:00 Cuba C%sT # Dominica @@ -1252,7 +1349,7 @@ Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 Rule Haiti 1983 only - May 8 0:00 1:00 D Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S -# Shanks says AT is 2:00, but IATA SSIM (1991/1996) says 1:00s. Go with IATA. +# Shanks says AT is 2:00, but IATA SSIM (1991/1997) says 1:00s. Go with IATA. Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1276,11 +1373,11 @@ Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr # From U. S. Naval Observatory (1989-01-19): # JAMAICA 5 H BEHIND UTC -# From Shanks (1991): +# From Shanks: # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston -5:07:12 - KMT 1912 Feb # Kingston Mean Time - -5:00 - EST 1974 Jan 6 2:00 + -5:00 - EST 1974 Apr 28 2:00 -5:00 US E%sT 1984 -5:00 - EST |