OS X: Daylight Savings Time switch and launchd

The end of the Daylight Time is near, this year, the switch takes place on November 2nd, to be precise. Usually no biggie, but Europe switched back last weekend and I switched a couple of jobs from cron to launchd, as prescribed by Apple, during the year on servers located in Europe.

cron, the one available on OS X, is capable of handling the switch from daylight time to ‘normal’ without problems. Meaning jobs starting between 2 AM and 3AM won’t run twice. I always thought, that this behavior is built into launchd as well. Long story short: Three OS X Servers started the jobs twice last weekend.

Just an FYI in case you need to know.

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