There's two possible explanations for why Engadget's tipline was heating up this morning with emailed complaints about iPhone alarms not going off as scheduled on New Year's Day (first reported last year and fixed in iOS 5), but we haven't heard a peep about the problem.
Explanation #1: The vast majority of TUAW readers sporting iOS 5-eligible devices (everything after the 2nd-gen iPod touch and the iPhone 3G) have already updated, and the ones who haven't don't depend on their on-device alarm clocks.
Explanation #2: TUAW readers like to do New Year's Eve up good and proper, and are still all sleeping it off.
Either way, we wish you a happy 2012, free of handy excuses for oversleeping like "My iPhone didn't wake me up!"
iPhone alarms work fine on 1/1 and 1/2, if you update iOS originally appeared on TUAW - The Unofficial Apple Weblog on Sun, 01 Jan 2012 12:50:00 EST. Please see our terms for use of feeds.
Just like the Daylight Saving Time bug, living in New Zealand has given me the opportunity to test this bug ahead of time. Strangely, a single-use alarm scheduled to go off at 7:00 AM today went off on time, but now single-use alarms don't work at all. Only alarms set to repeat at least once during the week will work properly. 9to5Mac suggests that the problem will clear up after January 3, and our testing confirms that -- in a couple of days, the alarms are back to normal.
This bug in the Clock app is somewhat less insidious than the Daylight Saving Time bug, which affected repeating alarms. With this New Year's Day bug, you'll still be safe if you've got a repeating alarm set during the work week. Only single-use alarms will fail to go off. I've tested this with alarms created in 2010 and alarms created in 2011, and it makes no difference; all single-use alarms now fail to activate until after 1/3. I've tested this on an iPhone 4 running iOS 4.2.1 -- your experience may differ if you have a different iOS device or software version.
Considering how many things Apple's managed to get right in iOS, it seems really odd that, of all things, it's the Clock app that keeps getting mucked up. Let us know in the comments if any third-party alarm clock apps are experiencing the same issue (though I doubt it). In the meantime, if you've been using your iPhone or iPod touch to wake you up in the morning, it might be a good idea to invest in a cheap standalone alarm clock -- or take off work until Monday.