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northamerica (207898) northamerica (210718)
1# <pre>
1# <pre>
2# @(#)northamerica 8.31
2# @(#)northamerica 8.34
3# This file is in the public domain, so clarified as of
4# 2009-05-17 by Arthur David Olson.
5
6# also includes Central America and the Caribbean
7
8# This data is by no means authoritative; if you think you know better,
9# go ahead and edit the file (and please send any changes to
10# tz@elsie.nci.nih.gov for general use in the future).

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1319# Shanks & Pottenger say that Atikokan has agreed with Rainy River
1320# ever since standard time was introduced, but the information from
1321# McKinnon sounds more authoritative. For now, assume that Atikokan
1322# switched to EST immediately after WWII era daylight saving time
1323# ended. This matches the old (less-populous) America/Coral_Harbour
1324# entry since our cutoff date of 1970, so we can move
1325# America/Coral_Harbour to the 'backward' file.
1326
3# This file is in the public domain, so clarified as of
4# 2009-05-17 by Arthur David Olson.
5
6# also includes Central America and the Caribbean
7
8# This data is by no means authoritative; if you think you know better,
9# go ahead and edit the file (and please send any changes to
10# tz@elsie.nci.nih.gov for general use in the future).

--- 1308 unchanged lines hidden (view full) ---

1319# Shanks & Pottenger say that Atikokan has agreed with Rainy River
1320# ever since standard time was introduced, but the information from
1321# McKinnon sounds more authoritative. For now, assume that Atikokan
1322# switched to EST immediately after WWII era daylight saving time
1323# ended. This matches the old (less-populous) America/Coral_Harbour
1324# entry since our cutoff date of 1970, so we can move
1325# America/Coral_Harbour to the 'backward' file.
1326
1327# From Mark Brader (2010-03-06):
1328#
1329# Currently the database has:
1330#
1331# # Ontario
1332#
1333# # From Paul Eggert (2006-07-09):
1334# # Shanks & Pottenger write that since 1970 most of Ontario has been like
1335# # Toronto.
1336# # Thunder Bay skipped DST in 1973.
1337# # Many smaller locales did not observe peacetime DST until 1974;
1338# # Nipigon (EST) and Rainy River (CST) are the largest that we know of.
1339#
1340# In the (Toronto) Globe and Mail for Saturday, 1955-09-24, in the bottom
1341# right corner of page 1, it says that Toronto will return to standard
1342# time at 2 am Sunday morning (which agrees with the database), and that:
1343#
1344# The one-hour setback will go into effect throughout most of Ontario,
1345# except in areas like Windsor which remains on standard time all year.
1346#
1347# Windsor is, of course, a lot larger than Nipigon.
1348#
1349# I only came across this incidentally. I don't know if Windsor began
1350# observing DST when Detroit did, or in 1974, or on some other date.
1351#
1352# By the way, the article continues by noting that:
1353#
1354# Some cities in the United States have pushed the deadline back
1355# three weeks and will change over from daylight saving in October.
1356
1357# From Arthur David Olson (2010-07-17):
1358#
1359# "Standard Time and Time Zones in Canada" appeared in
1360# The Journal of The Royal Astronomical Society of Canada,
1361# volume 26, number 2 (February 1932) and, as of 2010-07-17,
1362# was available at
1363# <a href="http://adsabs.harvard.edu/full/1932JRASC..26...49S">
1364# http://adsabs.harvard.edu/full/1932JRASC..26...49S
1365# </a>
1366#
1367# It includes the text below (starting on page 57):
1368#
1369# A list of the places in Canada using daylight saving time would
1370# require yearly revision. From information kindly furnished by
1371# the provincial governments and by the postmasters in many cities
1372# and towns, it is found that the following places used daylight sav-
1373# ing in 1930. The information for the province of Quebec is definite,
1374# for the other provinces only approximate:
1375#
1376# Province Daylight saving time used
1377# Prince Edward Island Not used.
1378# Nova Scotia In Halifax only.
1379# New Brunswick In St. John only.
1380# Quebec In the following places:
1381# Montreal Lachine
1382# Quebec Mont-Royal
1383# Levis Iberville
1384# St. Lambert Cap de la Madeleine
1385# Verdun Loretteville
1386# Westmount Richmond
1387# Outremont St. Jerome
1388# Longueuil Greenfield Park
1389# Arvida Waterloo
1390# Chambly-Canton Beaulieu
1391# Melbourne La Tuque
1392# St. Theophile Buckingham
1393# Ontario Used generally in the cities and towns along
1394# the southerly part of the province. Not
1395# used in the northwesterlhy part.
1396# Manitoba Not used.
1397# Saskatchewan In Regina only.
1398# Alberta Not used.
1399# British Columbia Not used.
1400#
1401# With some exceptions, the use of daylight saving may be said to be limited
1402# to those cities and towns lying between Quebec city and Windsor, Ont.
1403
1327# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1328Rule Toronto 1919 only - Mar 30 23:30 1:00 D
1329Rule Toronto 1919 only - Oct 26 0:00 0 S
1330Rule Toronto 1920 only - May 2 2:00 1:00 D
1331Rule Toronto 1920 only - Sep 26 0:00 0 S
1332Rule Toronto 1921 only - May 15 2:00 1:00 D
1333Rule Toronto 1921 only - Sep 15 2:00 0 S
1334Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D

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2142 -7:00 - MST 1927 Jun 10 23:00
2143 -6:00 - CST 1930 Nov 15
2144 -7:00 - MST 1931 May 1 23:00
2145 -6:00 - CST 1931 Oct
2146 -7:00 - MST 1932 Apr 1
2147 -6:00 - CST 1942 Apr 24
2148 -7:00 - MST 1949 Jan 14
2149 -8:00 - PST 1970
1404# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1405Rule Toronto 1919 only - Mar 30 23:30 1:00 D
1406Rule Toronto 1919 only - Oct 26 0:00 0 S
1407Rule Toronto 1920 only - May 2 2:00 1:00 D
1408Rule Toronto 1920 only - Sep 26 0:00 0 S
1409Rule Toronto 1921 only - May 15 2:00 1:00 D
1410Rule Toronto 1921 only - Sep 15 2:00 0 S
1411Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D

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2219 -7:00 - MST 1927 Jun 10 23:00
2220 -6:00 - CST 1930 Nov 15
2221 -7:00 - MST 1931 May 1 23:00
2222 -6:00 - CST 1931 Oct
2223 -7:00 - MST 1932 Apr 1
2224 -6:00 - CST 1942 Apr 24
2225 -7:00 - MST 1949 Jan 14
2226 -8:00 - PST 1970
2150 -7:00 Mexico M%sT 2010 Apr 4
2227 -7:00 Mexico M%sT 2010 Apr 4 2:00
2151 -6:00 Mexico C%sT
2152
2153# Baja California (near US border)
2154Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56
2155 -7:00 - MST 1924
2156 -8:00 - PST 1927 Jun 10 23:00
2157 -7:00 - MST 1930 Nov 15
2158 -8:00 - PST 1931 Apr 1

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2228 -6:00 Mexico C%sT
2229
2230# Baja California (near US border)
2231Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56
2232 -7:00 - MST 1924
2233 -8:00 - PST 1927 Jun 10 23:00
2234 -7:00 - MST 1930 Nov 15
2235 -8:00 - PST 1931 Apr 1

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