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iPhone 4iPhone users in Europe and the U.S. were in for a rude awakening this morning as the device’s alarm clock application experienced a bug related to Daylight Savings Time.

European iPhone owners have been reporting throughout the morning on Twitter that their alarms are going off one hour late. Meanwhile, some users in the US are reporting alarms going off an hour early.

Users in Australia and New Zealand first reported the issue when they switched over to Daylight Savings Time a few weeks ago. Apple had mentioned that a fix was on the way, but clearly one hasn’t arrived in time to avoid annoying countless European users. Daylight Savings won’t hit America until next Sunday, so Apple has a few days to fix the bug before it’s held responsible for early-morning panic in yet another country.

The bug seems to affect any recurring alarm that isn’t set to repeat “every day”, or one-time alarms set to never repeat, Engadget reports.

Check out a video demonstration of the bug below:

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