Daylight saving change and computer systems
Not too many people are paying attention, but the Energy Policy Act of 2005 lengthened daylight saving time by four weeks in the US. Instead of beginning the first Sunday of April and running through the last Sunday in October, daylight saving time will now stretch from the second Sunday in March to the first Sunday in November. The Washington Post has an article today about the change and what impact it might have on automated systems:
The change takes effect this year — on March 11 — and it has angered airlines, delighted candy makers and sent thousands of technicians scrambling to make sure countless automated systems switch their clocks at the right moment. Unless changed by one method or another, many systems will remain programmed to read the calendar and start daylight saving time on its old date in April, not its new one in March.
The article mentions that older Microsoft products like Windows XP SP1 and Windows NT4 might require manual updates and Daring Fireball has had a few updates about how the switch effects Mac users, including this piece at TidBITS. But what about everything else? Is the version of Movable Type I’m using going to make the adjustment? What about Wordpress? Perl? Ruby? PHP? Java? Linux? I’m sure the current versions of all these programs and languages address the issue, but are there fixes and patches for those running old versions of Perl on their server?
If you’ve got any information about programs, applications, and languages affected by the change and how to address the problem, leave a comment on this thread. I’ll update the post as information comes in.
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