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Time change and computers - Journal of Omnifarious

Mar. 9th, 2008

05:28 pm - Time change and computers

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I woke up this morning and discovered my computer had a really different idea of what time it was from my watch and bedside clock. I didn't know the time change was due and it took me a bit to figure out what was up. At first I figured I just mis-remembered what I saw on the bedroom clock before I wandered in to read my email. :-)

I like running computers that keep their time internally in UTC and simply have a database of silly timezone rules that they apply before displaying the time. That's as it should be. It's irritating to me to realize that most people still set their BIOS clocks to local time.

I think the world ought to run on UTC and we should just keep in mind that people in different parts of the world wake up at different times. :-) And certainly any time stored anywhere ought to be stored in UTC and simply formatted for the right timezone on display.

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Current Mood: [mood icon] pleased

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From:sparklewench
Date:March 10th, 2008 06:34 pm (UTC)
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Last year was the first time we did it 3 weeks early, so my computers had it wrong. Then in 3 weeks, they were wrong again. I am glad that was straightened out.
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From:omnifarious
Date:March 10th, 2008 06:46 pm (UTC)
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I am pretty rigorous about downloading and applying updates so the DST change last year didn't catch me that way. :-)

On a Unix box, the most common implementation has a tiny little program for each timezone for things like that. The program is smart enough to know that in 2006 it was different than in 2007 so historical display of times in their local timezone remains accurate.

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