Diffstat (limited to 'share/zoneinfo/northamerica')
1 files changed, 54 insertions, 9 deletions
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index d0daf5ed491f..9f9b98b09cb0 100644
@@ -1,4 +1,6 @@
-# @(#)northamerica 7.82
+# @(#)northamerica 7.87
# also includes Central America and the Caribbean
# This data is by no means authoritative; if you think you know better,
@@ -131,6 +133,26 @@ Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D
Rule US 2007 max - Mar Sun>=8 2:00 1:00 D
Rule US 2007 max - Nov Sun>=1 2:00 0 S
+# From Arthur David Olson, 2005-12-19
+# We generate the files specified below to guard against old files with
+# obsolete information being left in the time zone binary directory.
+# We limit the list to names that have appeared in previous versions of
+# this time zone package.
+# We do these as separate Zones rather than as Links to avoid problems if
+# a particular place changes whether it observes DST.
+# We put these specifications here in the northamerica file both to
+# increase the chances that they'll actually get compiled and to
+# avoid the need to duplicate the US rules in another file.
+# Zone NAME GMTOFF RULES FORMAT [UNTIL]
+Zone EST -5:00 - EST
+Zone MST -7:00 - MST
+Zone HST -10:00 - HST
+Zone EST5EDT -5:00 US E%sT
+Zone CST6CDT -6:00 US C%sT
+Zone MST7MDT -7:00 US M%sT
+Zone PST8PDT -8:00 US P%sT
# From Bob Devine (1988-01-28):
# ...Alaska (and Hawaii) had the timezone names changed in 1967.
# old new
@@ -800,18 +822,37 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
# Unless otherwise specified, the data for Canada are all from Shanks.
-# From Paul Eggert (2000-10-02):
+# From Paul Eggert (2005-12-21):
# H. David Matthews and Mary Vincent's map
-# <a href="http://www.canadiangeographic.ca/SO98/geomap.htm">
+# <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
# "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">
+# INMS, the Institute for National Measurement Standards in Ottawa, has <a
# information about standard and daylight saving time zones in Canada.
# </a> (updated periodically).
# Its unofficial information is often taken from Matthews and Vincent.
+# CBC News reported that Ontario and Manitoba have announced plans to
+# follow the US change, and that Nova Scotia is considering it; see
+# <http://www.cbc.ca/news/background/daylightsavingtime/> (2005-10-21).
+# CBC news also reported that Prince Edward Island is the first
+# province in Atlantic Canada to follow the US change, and that Quebec
+# had agreed; see <http://www.cbc.ca/pei/story/pe_daylight_20051207.html>
+# To reflect all this, the Canada and Winn rules have been adjusted to
+# agree with the 2007 US change. This means we assume most of Canada
+# will fall into line. However, Alberta, British Columbia,
+# Newfoundland, Northwest Territories, and Yukon already have separate
+# rules in our database, so for now we'll leave them alone, which
+# means that we currently assume these regions will not change their
+# rules and will disagree with the US starting in 2007. This
+# assumption is probably incorrect, with the possible exception of
+# Newfoundland. We plan to adjust the Edm, Vanc, StJohns, and NT_YK
+# rules as the corresponding provinces make their announcements.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Canada 1918 only - Apr 14 2:00 1:00 D
@@ -820,8 +861,10 @@ Rule Canada 1942 only - Feb 9 2:00 1:00 W # War
Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace
Rule Canada 1945 only - Sep 30 2:00 0 S
Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
-Rule Canada 1974 max - Oct lastSun 2:00 0 S
-Rule Canada 1987 max - Apr Sun>=1 2:00 1:00 D
+Rule Canada 1974 2006 - Oct lastSun 2:00 0 S
+Rule Canada 1987 2006 - Apr Sun>=1 2:00 1:00 D
+Rule Canada 2007 max - Mar Sun>=8 2:00 1:00 D
+Rule Canada 2007 max - Nov Sun>=1 2:00 0 S
# Newfoundland (and far southeast Labrador)
@@ -1147,11 +1190,13 @@ 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 1986 - Oct lastSun 2:00 0 S
-Rule Winn 1987 max - Apr Sun>=1 2:00 1:00 D
+Rule Winn 1987 2006 - Apr Sun>=1 2:00s 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
+Rule Winn 1987 2006 - Oct lastSun 2:00s 0 S
+Rule Winn 2007 max - Mar Sun>=8 2:00s 1:00 D
+Rule Winn 2007 max - Nov Sun>=1 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