Curse those farmers! Daylight Saving Time strikes iOS again! The Unofficial Apple Weblog reports that readers in the UK, where British Summer Time has just ended, are experiencing yet another time change glitch on Apple devices, this time in iOS 7. According to reports, the devices are correctly rolling back the clock one hour, but the “current time” marker in the Calendar app’s Day View still positions itself an hour ahead. Strangely, the time marker, although positioned incorrectly, is labeled with the correct time.
In the image provided by TUAW, the correct time is 9:18 PM, as reported by the clock at the top of the screen and by the red “current time” marker. But the red line itself is positioned an hour ahead, as if it were still on BST.
Similar bugs have struck iOS in the past. A 2010 Daylight Saving Time bug caused recurring alarms to go off at the wrong time, or even not at all, and a New Year’s 2011 bug stopped one-time alarms from sounding after the clocked rolled over to January 1st. This year’s bug is less critical, as users can still see the correct time in every location except the “current time” marker. It’s unknown if a similar bug will hit the U.S. when Daylight Saving Time ends on November 3rd.
Update: We have verified that the bug will also occur for U.S. iOS users on November 3rd unless patched by Apple before then. Functionality returns to normal on the day following the time change.