East-Saskatchewan -> Saskatchewan [forwarded with permission]

Date: Tue, 27 Oct 92 13:04:32 PST From: eggert@twinsun.com (Paul Eggert) Message-Id: <9210272104.AA11841@farside.twinsun.com> To: ado@ncifcrf.gov Subject: East-Saskatchewan -> Saskatchewan
W. Jones <jones@skdad.usask.ca> writes that all of Saskatchewan is on CST year round. I'll enclose his comments at the end of this message. So I propose the following patch to the tz package:
*** northamerica Thu Apr 23 10:34:33 1992 --- northamerica.fix Tue Oct 27 12:58:38 1992 *************** *** 215,220 **** --- 215,224 ---- # be same as Pacific. Stick with rules posted in 1988 until more authoritative # information is available.
+ # From W. Jones (October 27, 1992): + # Since (I believe) around 1964, all of Saskatchewan is on CST year round, + # by law [the U.S. Naval Observatory notwithstanding]. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Canada 1969 max - Oct lastSun 2:00 0 S Rule Canada 1969 1986 - Apr lastSun 2:00 1:00 D *************** *** 226,232 **** Zone Canada/Atlantic -4:00 Canada A%sT Zone Canada/Eastern -5:00 Canada E%sT Zone Canada/Central -6:00 Canada C%sT ! Zone Canada/East-Saskatchewan -6:00 - CST # No DST as of 1987 Zone Canada/Mountain -7:00 Canada M%sT Zone Canada/Pacific -8:00 Canada P%sT Zone Canada/Yukon -9:00 Canada Y%sT --- 230,236 ---- Zone Canada/Atlantic -4:00 Canada A%sT Zone Canada/Eastern -5:00 Canada E%sT Zone Canada/Central -6:00 Canada C%sT ! Zone Canada/Saskatchewan -6:00 - CST Zone Canada/Mountain -7:00 Canada M%sT Zone Canada/Pacific -8:00 Canada P%sT Zone Canada/Yukon -9:00 Canada Y%sT
Here are Jones's comments:
Date: Tue, 27 Oct 92 14:37:34 CST From: jones@skdad.usask.ca (W. Jones) To: eggert@twinsun.com Cc: wright@sask.usask.ca Organization: University of Saskatchewan, Saskatoon, Canada
... for this site, in order to follow local time correctly requires choosing the ruleset named "East-Saskatchewan". Sounds plausible, until you consider that the measure of places for which a ruleset "Saskatchewan" or "West-Saskatchewan" applies is zero.
How did this come about? Since (I believe) around 1964, all of Saskatchewan is on CST year round, by law; but since that distinction makes us rebels to North American convention, it tends to get left out of discussions for simplicity. Thus when the timezone package appeared in 1987, lo and behold we were lumped with the other Central places, as implied in this table in the documentation:
# From U. S. Naval Observatory (January 19, 1989): # CANADA NEW FDL 3.5H BEHIND UTC ST.JOHN'S # CANADA NEW FDL 1.5H BEHIND UTC APR 3 - OCT 29 # CANADA ATLANTIC 4 H BEHIND UTC HALIFAX # CANADA ATLANTIC 3 H BEHIND UTC APR 3 - OCT 29 # CANADA EASTERN 5 H BEHIND UTC TORONTO, MONTREAL, OTTAWA # CANADA EASTERN 4 H BEHIND UTC APR 3 - OCT 29 # CANADA CENTRAL 6 H BEHIND UTC REGINA, WINNIPEG # CANADA CENTRAL 5 H BEHIND UTC APR 3 - OCT 29 # CANADA MOUNTAIN 7 H BEHIND UTC CALGARY, EDMONTON # CANADA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 29 # CANADA PACIFIC 8 H BEHIND UTC VANCOUVER # CANADA PACIFIC 7 H BEHIND UTC APR 3 - OCT 29 # CANADA YUKON SAME AS PACIFIC DAWSON
I complained, and the eventual result was the adjustment below:
# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] # Bob Devine says that DST *is* observed in Newfoundland Zone Canada/Newfoundland -3:30 Canada N%sT Zone Canada/Atlantic -4:00 Canada A%sT Zone Canada/Eastern -5:00 Canada E%sT Zone Canada/Central -6:00 Canada C%sT Zone Canada/East-Saskatchewan -6:00 - CST # No DST as of 1987 Zone Canada/Mountain -7:00 Canada M%sT Zone Canada/Pacific -8:00 Canada P%sT
apparently the U.S. Naval Observatory was believed infallible, thus the fellow from Saskatchewan must be following some kooky (and new) local practice, thus we'll just throw him a sop....
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