December 2014 - tz - lists.iana.org

Mexico city 1950
by Alois Treindl Dec. 7, 2014

Dec. 7, 2014

Dear Paul I am looking at the timezone for Mexico City 1950. There is a special rules for DST 12 Feb - 31 July 1950, which seems to apply only to Mexico City. I need to find out the definition of the geographic area for which this is valid. You quote as a source http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/ but I cannot access that source. Do you happen to keep an offline copy of that source information? Best regards Alois

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Adding Asia/Beijing timezone into the database
by Daoming Qiu Dec. 6, 2014

Dec. 6, 2014

"Beijing Time" is the standard time used for China region, so it is very strange that tzdatabase doesn't have timezone called Asia/Beijing. Strongly suggest to add "Asia/Beijing" zone into the database, and its information is very similar with "Asia/Shanghai".

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Leap seconds
by Arthur David Olson Dec. 3, 2014

Dec. 3, 2014

Given history to date, the leap second information needed by knowledgeable, concerned clients is, in its entirety: 1972-06 1972-12 1973-12 1974-12 1975-12 1976-12 1977-12 1978-12 1979-12 1981-06 1982-06 1983-06 1985-06 1987-12 1989-12 1990-12 1992-06 1993-06 1994-06 1995-12 1997-06 1998-12 2005-12 2008-12 2012-06 These are the months at the ends of which leap seconds were inserted.* I'm confident that a way of getting the information to such clients can be developed. It may be prudent to wait and see if the status of the leap second changes in 2015; a change may obviate the need for leap second updates (though not the need for information on past leap seconds). @dashdashado *This ignores the possibility of skipped seconds, which have yet to occur in the wild. It also ignores niceties such as New York City, which at least once "observed" the leap second at midnight New York time rather than midnight UTC, making for a ball drop countdown of "Three...two...one...leap...Happy New Year!"

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Colorado permanent daylight initiative
by Steve Allen Dec. 1, 2014

Dec. 1, 2014

Denver Post reports a ballot initiative attempt that would give voters a chance to choose permanent daylight time for Colorado. http://www.denverpost.com/news/ci_27044142/proposal-would-keep-colorado-day… -- Steve Allen <sla(a)ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m

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