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Another daylight saving time bug strikes Apple's iOS 7, affects calendar display

Owners of iOS devices running the latest version of Apple's mobile operating system awoke to a display error in iOS 7's calendar app caused by the switch to daylight saving time.


iOS 7's calendar application displays the "current time" line offset by one hour.Thanks to AppleInsider readers Valentijn and Andrea

Several AppleInsider readers have reported the line indicating the current time is displaced by one hour in the calendar app — for example, at 12:15 p.m., the calendar app draws the "current time" line in the slot for 1:15 p.m., despite displaying the correct time beside the line and in the system notification bar.

The bug reportedly does not affect scheduled alarms or calendar events, the times for which are adjusted properly.

Time zone support is a recurring issue for Apple's software and operating systems. In 2010, iOS 4 contained a bug that did not properly shift alarm schedules when Daylight Savings Time ended, causing some European iPhone owners to miss appointments or wake up late for work, while Australians were woken up early.

In 2011, another iOS 4 bug caused non-recurring alarms to be disabled when clocks ticked over to January 1, 2011. Apple eventually fixed both issues.



77 Comments

davemcm76 268 comments · 13 Years

[quote name="JohnnyHouston" url="/t/160422/another-daylight-saving-time-bug-strikes-apples-ios-7-affects-calendar-display#post_2425524"]Isn't DST next weekend? [/quote] DST ended this morning for most of Europe (DST has been coordinated here since 1996 - http://en.wikipedia.org/wiki/Summer_Time_in_Europe) so here in the UK we got an extra hour in bed and are back on GMT. Just checked my iPhone and it is showing this.... the time by the line is correct at 21:32 but the line is showing around half way between 22:00 and 23:00...

vmoyer 1 comment · 11 Years

My calendar seems to be working properly with IOS 7.