Some iOS users have trouble with switch to Daylight Savings Time

If you were expecting to meet someone Sunday morning and they arrived two hours late, the odds are that they are sporting an Apple iPhone. In what has become an annual event, iOS continues to have problems with the simple task of moving the clock ahead an hour for the second Sunday in March. Some Apple iPhone users actually had their clocks turned back an hour instead which meant that these people would be two hours late to a meeting if they relied on their handset for the time. Even the iPhone's voice activated personal assistant was confused as Siri mistakenly had DST starting this past Wednesday, 4 days ago.

Even with your Apple iPhone aware of your location, the clocks are showing incorrect time. One Florida based user has a clock running on Chicago time and in Arizona, where DST in not observed, the Apple iPhone moved some clocks ahead an hour. A simple device restart might fix the problem, or turning the time automation off and on again might do the trick.

In the future, Apple iPhone users might do well to heed the advice from one iPhone user who suggests using the device's countdown timer as a backup just in case the clock on the phone goes wonky. And as far as today's shift to Daylight Savings Time (or "Summer Time" in Europe), we would suggest just checking with another time source for now, just until you've either confirmed that the clock on your iOS device is correct or until you have set the correct time yourself.

source: TUAW