From: | Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Daylight saving time |
Date: | 2004-10-24 07:51:05 |
Message-ID: | Pine.LNX.4.44.0410240939310.2015-100000@zigo.dhs.org |
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Lists: | pgsql-hackers |
I found a nice page about daylight saving time that I want to share:
http://timeanddate.com/time/aboutdst.html
Here are some fun quotes from the page:
"Sometimes DST is used for longer periods than just one summer, as in the
United States during World War II. From 3 Feb 1942 to 30 Sep 1945 most of
United States had DST all year, it was called "War Time"."
"many countries change the transition days/principles every year because
of special happenings or conditions that has happened or will happen."
Also notice the current list of DST changes for this fall 2004:
http://timeanddate.com/time/dst2004b.html
I can understand why they did not try to formalize that in the sql spec.
ps. This letter does not mean that I think it's bad to handle time zone
names, just that it's even more difficult then I first thought.
--
/Dennis Björklund
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