Did you perhaps use an alarm that already existed and activated it on January 2nd to go off on January 3rd? If so, no it didn't work.
Delete any existing alarm you have and create a new one. Then test it.
And buy a cheap alarm clock for a backup. What are you going to do if you run your iPhone battery so low that is shuts down overnight? What will you do if it is connected to a wall charger and the power fails and the charger depletes the battery? What are you going to do if you are charging the iPhone via your computer, the computer goes into sleep mode, USB charging stops and it depletes your battery?
apple said you have to do nothing and it will work after 2nd. Will now delete the alarms and recreate. It is silly to have the need for an normal alarm clock. The iphone should just work with such a basic function. Our iphones are connected to power next to our beds so they will never be empty. If the power fails in the house and other alarm will go off, so we are covered there.
Did not work on both of our phones this morning. At least one of the alarms was set on 1.3.11 (after midnight) but it did not go off at the set time. Just set another non-repeating alarm to test the system and it DID work.
Please fix this bug. If it happened in November, then again at the New Year, doesn't it seem it might happen again? I mean, thanks for the extra sleep and all, we needed it, but we almost missed our flights yesterday which would have been quite costly.
What am I going to do if my cheap backup alarm clock gets shorted because the outlet it's plugged in malfunctions? What if this? What if that? What if's are silly. My iPhone and my wife's iPhones are charged by the time we go to sleep and we use them to wake up, because they have that functionality built into them. This morning my wife's alarm didn't go off. Probably would have been nice for Apple to send text messages to its iPhone customers to at least alert them about the possibility.
My alarm failed to function this morning as well. I did not know of this problem until it was too late. Apple should have sent out notifications through AT&T warning people of this problem.
Do you seriously think it would've been remotely possible for Apple to contact over 160 individual carriers, in over 90 countries, in every different time zone, speaking dozens of different languages and tell them to send an SMS to all their iPhone subscribers, on a New Years holiday weekend?
And then, even if they did manage to get a response from every single carrier, for each of those carriers to organise a mass SMS sending to millions and millions of iPhone users?
New Years Eve/Day is the busiest time of the year for sending SMS messages, and most employees of the carriers concerned would be on holiday themselves.