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Move obsolescent Montreal entry to 'backward'.
This is like the previous change, except it entails a change to zone.tab. The America/Montreal entry was created only because we mistakenly thought that Montreal's and Toronto's post-1970 time stamps differed. * backward, northamerica (America/Montreal): Now a 'backward' link to America/Toronto. * northamerica (Mont): Remove rules; no longer needed. (America/Thunder_Bay): Refer to Toronto rules, not Mont. This doesn't change any time stamps. * zone.tab (America/Montreal): Remove. (America/Toronto): Say that it also covers most of Quebec.
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backward
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backward
@ -34,6 +34,7 @@ Link America/Kentucky/Louisville America/Louisville
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Link America/Puerto_Rico America/Lower_Princes
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Link America/Puerto_Rico America/Marigot
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Link America/Argentina/Mendoza America/Mendoza
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Link America/Toronto America/Montreal
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Link America/Puerto_Rico America/Montserrat
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Link America/Toronto America/Nassau
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Link America/Puerto_Rico America/Port_of_Spain
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northamerica
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northamerica
@ -1342,8 +1342,8 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
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# Quebec
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# From Paul Eggert (2013-08-26):
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# Shanks & Pottenger write that since 1970 most of Quebec has been
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# like Montreal.
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# Since 1970 most of Quebec has been like Toronto.
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# See America/Toronto.
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# Matthews and Vincent (1998) also write that Quebec east of the -63
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# meridian is supposed to observe AST, but residents as far east as
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@ -1359,46 +1359,6 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
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# Shanks & Pottenger who have this region observing AST/ADT.
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# See America/Puerto_Rico.
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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Rule Mont 1917 only - Mar 25 2:00 1:00 D
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Rule Mont 1917 only - Apr 24 0:00 0 S
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Rule Mont 1919 only - Mar 31 2:30 1:00 D
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Rule Mont 1919 only - Oct 25 2:30 0 S
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Rule Mont 1920 only - May 2 2:30 1:00 D
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Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
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Rule Mont 1921 only - May 1 2:00 1:00 D
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Rule Mont 1922 only - Apr 30 2:00 1:00 D
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Rule Mont 1924 only - May 17 2:00 1:00 D
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Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
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Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
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# The 1927-to-1937 rules can be expressed more simply as
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# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
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# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
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# The rules below avoid use of 24:00
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# (which pre-1998 versions of zic cannot handle).
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Rule Mont 1927 only - May 1 0:00 1:00 D
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Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
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Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
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Rule Mont 1932 only - May 1 0:00 1:00 D
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Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
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Rule Mont 1933 only - Oct 1 0:00 0 S
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Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
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Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
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Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
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Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
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Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
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Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone America/Montreal -4:54:16 - LMT 1884
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-5:00 Mont E%sT 1918
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-5:00 Canada E%sT 1919
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-5:00 Mont E%sT 1942 Feb 9 2:00s
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-5:00 Canada E%sT 1946
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-5:00 Mont E%sT 1974
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-5:00 Canada E%sT
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# Ontario
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# From Paul Eggert (2006-07-09):
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@ -1619,7 +1579,7 @@ Zone America/Thunder_Bay -5:57:00 - LMT 1895
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-6:00 - CST 1910
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-5:00 - EST 1942
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-5:00 Canada E%sT 1970
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-5:00 Mont E%sT 1973
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-5:00 Toronto E%sT 1973
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-5:00 - EST 1974
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-5:00 Canada E%sT
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Zone America/Nipigon -5:53:04 - LMT 1895
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3
zone.tab
3
zone.tab
@ -122,8 +122,7 @@ CA +4612-05957 America/Glace_Bay Atlantic Time - Nova Scotia - places that did n
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CA +4606-06447 America/Moncton Atlantic Time - New Brunswick
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CA +5320-06025 America/Goose_Bay Atlantic Time - Labrador - most locations
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CA +5125-05707 America/Blanc-Sablon Atlantic Standard Time - Quebec - Lower North Shore
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CA +4531-07334 America/Montreal Eastern Time - Quebec - most locations
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CA +4339-07923 America/Toronto Eastern Time - Ontario - most locations
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CA +4339-07923 America/Toronto Eastern Time - Ontario & Quebec - most locations
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CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973
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CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario
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CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations
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