Ok, i'm a complete noob to Android and got my first Galaxy S3 yesterday. When I'm using the phone the clock displaying in the top right corner does not change time until I lock the phone and then unlock it. The phone still keeps time as I've tested it by setting alarms but the phone will easily show the same time from when I unlocked the phone. If its been 20 minutes since I've locked it then it'll be 20 minutes behind. Going to the home screen does not make it change and expanding the top bar settings still shows the "behind" time. Only way I can update it is to lock it and unlock it. Any tips?