A bug in the iPhone's operating system resulted in alarms going off an hour late as Europe changed from daylight saving time.

The iPhone's regular clock can handle the change and automatically steps back one hour. However, the alarm goes off one hour late. People who set the alarm for 7 a.m. found that it actually sounds off at 8 a.m.

iPhone users seem to have managed fine, with lots of short showers and quick breakfasts: "The iPhone gave me a nice sleep-in. Luckily a friend called me four minutes before the lecture started, and I managed to get there reasonably on time," said one user on MacWorld Sweden's site.

The change from daylight saving time happened early Sunday in many places in Europe.

This isn't the first time that the switch has caused problems for iPhone users. At the end of September and the beginning of October, the change caused alarms in New Zealand and Australia to go off one hour early.

Apple representatives contacted on Monday did not say when the issue will be fixed. Parts of the U.S., Canada and Mexico that observe daylight saving time are scheduled to set the clocks back at 2 a.m. Sunday.

Apple iPhone 4

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