diff options
Diffstat (limited to 'timezone/northamerica')
| -rw-r--r-- | timezone/northamerica | 169 |
1 files changed, 149 insertions, 20 deletions
diff --git a/timezone/northamerica b/timezone/northamerica index 654450a9c5..19dea11371 100644 --- a/timezone/northamerica +++ b/timezone/northamerica @@ -1,4 +1,4 @@ -# @(#)northamerica 7.52 +# @(#)northamerica 7.53 # also includes Central America and the Caribbean # This data is by no means authoritative; if you think you know better, @@ -58,10 +58,36 @@ # Before the Uniform Time Act of 1966 took effect in 1967, observance of # Daylight Saving Time in the US was by local option, except during wartime. +# From Arthur David Olson (2000-09-25): +# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama. +# In the introduction, Oboler spoke of "Eastern Peace Time." +# An AltaVista search turned up +# <a href="http://rowayton.org/rhs/hstaug45.html">: +# "When the time is announced over the radio now, it is 'Eastern Peace +# Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful." +# </a> (August 1945) by way of confirmation. + +# From Joseph Gallant <notquite@hotmail.com>, citing +# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987): +# At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set +# to switch to London for Atlee's address, but the American people +# never got to hear his speech live. According to one press account, +# CBS' Bob Trout was first to announce the word of Japan's surrender, +# but a few seconds later, NBC, ABC and Mutual also flashed the word +# of surrender, all of whom interrupting the bells of Big Ben in +# London which were to precede Mr. Atlee's speech. + +# From Paul Eggert (2000-10-02): +# Shanks says that DST was called "War Time" in the US in 1919. +# In the light of the above, this seems suspect; +# but we have no better authority yet. + + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule US 1918 1919 - Mar lastSun 2:00 1:00 W # War Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War +Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace Rule US 1945 only - Sep 30 2:00 0 S Rule US 1967 max - Oct lastSun 2:00 0 S Rule US 1967 1973 - Apr lastSun 2:00 1:00 D @@ -150,6 +176,13 @@ Rule US 1987 max - Apr Sun>=1 2:00 1:00 D # Go with Shanks. # US Eastern time, represented by New York + +# Connecticut, Delaware, District of Columbia, most of Florida, +# Georgia, far southeastern Indiana, eastern Kentucky, Maine, +# Maryland, Massachusetts, New Hampshire, New Jersey, New York, North +# Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, eastern +# Tennessee, Vermont, Virginia, West Virginia + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule NYC 1920 only - Mar lastSun 2:00 1:00 D Rule NYC 1920 only - Oct lastSun 2:00 0 S @@ -165,6 +198,13 @@ Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:00 -5:00 US E%sT # US Central time, represented by Chicago + +# Alabama, Arkansas, Florida panhandle, Illinois, western Indiana +# corners, Iowa, most of Kansas, western Kentucky, Louisiana, +# Minnesota, Mississippi, Missouri, eastern Nebraska, eastern North +# Dakota, Oklahoma, eastern South Dakota, western Tennessee, most of +# Texas, Wisconsin + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Chicago 1920 only - Jun 13 2:00 1:00 D Rule Chicago 1920 1921 - Oct lastSun 2:00 0 S @@ -183,6 +223,11 @@ Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:00 -6:00 US C%sT # US Mountain time, represented by Denver +# +# Colorado, southern Idaho, far western Kansas, Montana, western +# Nebraska, New Mexico, southwestern North Dakota, far eastern Oregon, +# western South Dakota, far western Texas, Utah, Wyoming +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D Rule Denver 1920 only - Oct lastSun 2:00 0 S @@ -198,6 +243,9 @@ Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00 -7:00 US M%sT # US Pacific time, represented by Los Angeles +# +# California, northern Idaho, Nevada, most of Oregon, and Washington +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule CA 1948 only - Mar 14 2:00 1:00 D Rule CA 1949 only - Jan 1 2:00 0 S @@ -390,6 +438,7 @@ Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:00 -5:00 - EST # Part of Kentucky left its clocks alone in 1974. +# This also includes a part of Indiana immediately adjacent to Louisville. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Louisville 1921 only - May 1 2:00 1:00 D Rule Louisville 1921 only - Sep 1 2:00 0 S @@ -408,16 +457,9 @@ 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 +Link America/Louisville America/Kentucky/Louisville +# # 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"> @@ -430,6 +472,36 @@ Zone America/Louisville -5:43:02 - LMT 1883 Nov 18 12:00 # 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. +# +# From Rich Wales (2000-08-29): +# After prolonged debate, and despite continuing deep differences of opinion, +# Wayne County (central Kentucky) is switching from Central (-0600) to Eastern +# (-0500) time. They won't "fall back" this year. See: +# <a href="http://www.nandotimes.com/nation/story/body/0,1037,500244845-500362432-502132762-0,00.html"> +# Sara Shipley, the difference an hour makes (2000-08-29 15:33 -0400) +# </a> +Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:00 + -6:00 US C%sT 1946 + -6:00 - CST 1968 + -6:00 US C%sT 2000 Oct 29 2:00 + -5:00 US E%sT + + +# From Rives McDow (2000-08-30): +# Here ... are all the changes in the US since 1985. +# Kearny County, KS (put all of county on central; +# previously split between MST and CST) ... 1990-10 +# Starke County, IN (from CST to EST) ... 1991-10 +# Oliver County, ND (from MST to CST) ... 1992-10 +# West Wendover, NV (from PST TO MST) ... 1999-10 +# Wayne County, KY (from CST to EST) ... 2000-10 +# There is another change in the offing; Mercer County, ND is looking +# to change from MT to CT. It is possible that two other ND counties +# (Sioux and Morton) will look to change also. If made, the earliest +# a change would be effective is October 2001. +# +# From Paul Eggert (2000-10-02): +# FIXME: I haven't yet had time to incorporate all the above changes. # Michigan # @@ -558,8 +630,20 @@ 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. +# Unless otherwise specified, the data for Canada are all from Shanks. +# From Paul Eggert (2000-10-02): +# H. David Matthews and Mary Vincent's map +# <a href="http://www.canadiangeographic.ca/SO98/geomap.htm"> +# "It's about TIME", _Canadian Geographic_ (September-October 1998) +# </a> contains detailed boundaries for regions observing nonstandard +# time and daylight saving time arrangements in Canada circa 1998. +# +# INMS, the Institute for National Measurement Standards in Ottawa, has +# <a href="http://www.nrc.ca/inms/time/tze.html"> +# information about standard and daylight saving time zones in Canada. +# </a> (updated periodically). +# Its unofficial information is often taken from Matthews and Vincent. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Canada 1918 only - Apr 14 2:00 1:00 D @@ -571,7 +655,13 @@ Rule Canada 1974 max - Oct lastSun 2:00 0 S Rule Canada 1987 max - Apr Sun>=1 2:00 1:00 D -# Newfoundland (except Labrador) +# Newfoundland (and far southeast Labrador) + +# From Paul Eggert (2000-10-02): +# Matthews and Vincent (1998) write that Labrador should use NST/NDT, +# but the only part of Labrador that follows the rules is the +# southeast corner, including Port Hope Simpson and Mary's Harbour, +# but excluding, say, Black Tickle. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D @@ -601,10 +691,14 @@ Rule StJohns 1946 1950 - May Sun>=8 2:00 1:00 D Rule StJohns 1946 1950 - Oct Sun>=2 2:00 0 S Rule StJohns 1951 1986 - Apr lastSun 2:00 1:00 D Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S -Rule StJohns 1960 max - Oct lastSun 2:00 0 S -Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D -Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 DD -Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D +Rule StJohns 1960 1986 - Oct lastSun 2:00 0 S +# From Paul Eggert (2000-10-02): +# INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches +# at 00:01 local time. For now, assume it started in 1987. +Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D +Rule StJohns 1987 max - Oct lastSun 0:01 0 S +Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD +Rule StJohns 1989 max - Apr Sun>=1 0:01 1:00 D # St John's has an apostrophe, but Posix file names can't have apostrophes. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/St_Johns -3:30:52 - LMT 1884 @@ -612,7 +706,7 @@ Zone America/St_Johns -3:30:52 - LMT 1884 -3:30 StJohns N%sT -# east Labrador +# most of east Labrador # The name `Happy Valley-Goose Bay' is too long; use `Goose Bay'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -633,6 +727,11 @@ Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay # Shanks also writes that Liverpool, NS was the only town in Canada to observe # DST in 1971 but not 1970; for now we'll assume this is a typo. +# From Paul Eggert (2000-10-02): +# INMS (2000-09-12) says that, since 1988 at least, New Brunswick switches +# at 00:01 local time. FIXME: verify and create a new Zone for this. + + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Halifax 1916 only - Apr 1 0:00 1:00 D Rule Halifax 1916 only - Oct 1 0:00 0 S @@ -707,6 +806,17 @@ Zone America/Glace_Bay -3:59:48 - LMT 1902 Jun 15 # For what it's worth, Shanks says that Atikokan has agreed with # Rainy River ever since standard time was introduced. +# From Paul Eggert (2000-10-02): +# Matthews and Vincent (1998) write that Atikokan, Pickle Lake, and +# New Osnaburgh observe CST all year, that Big Trout Lake observes +# CST/CDT, and that Upsala and Shebandowan observe EST/EDT, all in +# violation of the official Ontario rules. +# They also write that Quebec east of the -63 meridian is supposed to +# observe AST, but residents as far east as Natashquan use EST/EDT, +# and residents east of Natashquan use AST. +# We probably need Zones for far east Quebec and for Atikokan, +# but we don't know when their practices started. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mont 1917 only - Mar 25 2:00 1:00 D Rule Mont 1917 only - Apr 24 0:00 0 S @@ -774,8 +884,12 @@ Rule Winn 1960 only - Sep lastSun 2:00 0 S Rule Winn 1963 only - Apr lastSun 2:00 1:00 D Rule Winn 1963 only - Sep 22 2:00 0 S Rule Winn 1966 1986 - Apr lastSun 2:00 1:00 D -Rule Winn 1966 max - Oct lastSun 2:00 0 S +Rule Winn 1966 1986 - Oct lastSun 2:00 0 S Rule Winn 1987 max - Apr Sun>=1 2:00 1:00 D +# From Paul Eggert (2000-10-02): +# INMS (2000-09-12) says that, since 1988 at least, Manitoba switches from +# DST at 03:00 local time. For now, assume it started in 1987. +Rule Winn 1987 max - Oct lastSun 2:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16 -6:00 Winn C%sT @@ -783,10 +897,12 @@ Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16 # Saskatchewan -# From Paul Eggert (1996-06-12): +# From Paul Eggert (2000-10-02): # Shanks writes that since 1970 most of this region has been like Regina. # Some western towns (e.g. Swift Current) switched from MST/MDT to CST in 1972. # Other western towns (e.g. Lloydminster) are like Edmonton. +# Matthews and Vincent (1998) write that Denare Beach and Creighton +# are like Winnipeg, in violation of Saskatchewan law. # From W. Jones <jones@skdad.usask.ca> (1992-11-06): # The. . .below is based on information I got from our law library, the @@ -874,9 +990,10 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # British Columbia -# From Paul Eggert (1996-06-12): +# From Paul Eggert (2000-10-02): # Shanks writes that since 1970 most of this region has been like Vancouver. # Dawson Creek uses MST. Much of east BC is like Edmonton. +# Matthews and Vincent (1998) write that Creston is like Dawson Creek. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Vanc 1918 only - Apr 14 2:00 1:00 D @@ -960,6 +1077,18 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884 # for municipal offices and schools.... Igloolik [was similar but then] # made the switch to central time on Saturday, Nov. 6. +# From Paul Eggert (2000-10-02): +# Matthews and Vincent (1998) say the following, but we lack histories +# for these potential new Zones. +# +# The Canadian Forces station at Alert uses Eastern Time while the +# handful of residents at the Eureka weather station [in the Central +# zone] skip daylight savings. Baffin Island, which is crossed by the +# Central, Eastern and Atlantic Time zones only uses Eastern Time. +# Gjoa Haven, Taloyoak and Pelly Bay all use Mountain instead of +# Central Time and Southampton Island [in the Central zone] is not +# required to use daylight savings. + # 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 |