TUAW notes that alarms set on the latest iOS are going off an hour early, and a thread on Apple’s support discussion board confirms other users are having issues. Alarms set for multiple days (all weekdays, for example) seem to be particularly affected.
Given that Australia’s own daylight saving begins this weekend (2am Sunday 3 October) in NSW, Victoria, South Australia, Tasmania and the ACT , we’ve likely got the bug to look forward to until Apple updates the iOS – which probably won’t be until November when iOS 4.2 drops from the sky.
It’s hardly the Y2K bug over again (remember that?), but it’s something to be aware of from next week – you don’t want to lose an extra hour of sleep for nothing.
UPDATE (4 October): Just as we suspected, the bug is affecting Australian users. The best way around it is to either manually set the time on your iPhone, or simply use one-off alarms rather than repeating ones.