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*** 298,307 ****
--- 298,313 ----
# set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
# Roberts, city administrator in Phenix City. as saying "We are in the Central
# time zone, but we do go by the Eastern time zone because so many people work
# in Columbus."
+ # From Paul Eggert (2014-09-06):
+ # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
+ # says that New York City Hall time was 3 minutes 58.4 seconds fast of
+ # Eastern time (i.e., -4:56:01.6) just before the 1883 switch. Round to the
+ # nearest second.
+
# 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
Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
*** 1116,1136 ****
# ...
# Nunavut
# An amendment to the Interpretation Act was registered on February 19/2007....
# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf
! # From Paul Eggert (2006-04-25):
# H. David Matthews and Mary Vincent's map
# "It's about TIME", _Canadian Geographic_ (September-October 1998)
! # http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
# 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
! # information about standard and daylight saving time zones in Canada.
! # http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php
! # (updated periodically).
# Its unofficial information is often taken from Matthews and Vincent.
# From Paul Eggert (2006-06-27):
# For now, assume all of DST-observing Canada will fall into line with the
# new US DST rules,
--- 1122,1141 ----
# ...
# Nunavut
# An amendment to the Interpretation Act was registered on February 19/2007....
# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf
! # From Paul Eggert (2014-10-18):
# H. David Matthews and Mary Vincent's map
# "It's about TIME", _Canadian Geographic_ (September-October 1998)
! # http://www.canadiangeographic.ca/Magazine/SO98/alacarte.asp
# contains detailed boundaries for regions observing nonstandard
# time and daylight saving time arrangements in Canada circa 1998.
#
! # National Research Council Canada maintains info about time zones and DST.
! # http://www.nrc-cnrc.gc.ca/eng/services/time/time_zones.html
! # http://www.nrc-cnrc.gc.ca/eng/services/time/faq/index.html#Q5
# Its unofficial information is often taken from Matthews and Vincent.
# From Paul Eggert (2006-06-27):
# For now, assume all of DST-observing Canada will fall into line with the
# new US DST rules,
*** 1991,2015 ****
# checking for more info, and will get back to you if I come up with
# more.
# [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).]
# From Gwillim Law (2005-05-21):
! # According to maps at
! # http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SWE.jpg
! # http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SSE.jpg
! # (both dated 2003), and
# http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
# (from a 1998 Canadian Geographic article), the de facto and de jure time
# for Southampton Island (at the north end of Hudson Bay) is UTC-5 all year
# round. Using Google, it's easy to find other websites that confirm this.
# I wasn't able to find how far back this time regimen goes, but since it
# predates the creation of Nunavut, it probably goes back many years....
# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
#
! # From Paul Eggert (2005-07-26):
# For lack of better information, assume that Southampton Island observed
! # daylight saving only during wartime.
# From Chris Walton (2007-03-01):
# ... the community of Resolute (located on Cornwallis Island in
# Nunavut) moved from Central Time to Eastern Time last November.
# Basically the community did not change its clocks at the end of
--- 1996,2019 ----
# checking for more info, and will get back to you if I come up with
# more.
# [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).]
# From Gwillim Law (2005-05-21):
! # According to ...
# http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
# (from a 1998 Canadian Geographic article), the de facto and de jure time
# for Southampton Island (at the north end of Hudson Bay) is UTC-5 all year
# round. Using Google, it's easy to find other websites that confirm this.
# I wasn't able to find how far back this time regimen goes, but since it
# predates the creation of Nunavut, it probably goes back many years....
# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
#
! # From Paul Eggert (2014-10-17):
# For lack of better information, assume that Southampton Island observed
! # daylight saving only during wartime. Gwillim Law's email also
! # mentioned maps now maintained by National Research Council Canada;
! # see above for an up-to-date link.
# From Chris Walton (2007-03-01):
# ... the community of Resolute (located on Cornwallis Island in
# Nunavut) moved from Central Time to Eastern Time last November.
# Basically the community did not change its clocks at the end of
*** 3006,3019 ****
# Jamaica
# Shanks & Pottenger give -5:07:12, but Milne records -5:07:10.41 from an
# unspecified official document, and says "This time is used throughout the
# island". Go with Milne. Round to the nearest second as required by zic.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Jamaica -5:07:11 - LMT 1890 # Kingston
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
! -5:00 - EST 1974 Apr 28 2:00
-5:00 US E%sT 1984
-5:00 - EST
# Martinique
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 3010,3034 ----
# Jamaica
# Shanks & Pottenger give -5:07:12, but Milne records -5:07:10.41 from an
# unspecified official document, and says "This time is used throughout the
# island". Go with Milne. Round to the nearest second as required by zic.
+ #
+ # Shanks & Pottenger give April 28 for the 1974 spring-forward transition, but
+ # Lance Neita writes that Prime Minister Michael Manley decreed it January 5.
+ # Assume Neita meant Jan 6 02:00, the same as the US. Neita also writes that
+ # Manley's supporters associated this act with Manley's nickname "Joshua"
+ # (recall that in the Bible the sun stood still at Joshua's request),
+ # and with the Rod of Correction which Manley said he had received from
+ # Haile Selassie, Emperor of Ethiopia. See:
+ # Neita L. The politician in all of us. Jamaica Observer 2014-09-20
+ # http://www.jamaicaobserver.com/columns/The-politician-in-all-of-us_17573647
+ #
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Jamaica -5:07:11 - LMT 1890 # Kingston
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
! -5:00 - EST 1974
-5:00 US E%sT 1984
-5:00 - EST
# Martinique
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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