Been reading a bit on this and that's what created the problem for me.. Everything worked till yesterday until I read about this topic and tweaked my alarm settings. The issue is if you have a repeating alarm for all days, then your alarm will go off an hour early. But if you have it only for weekdays, it will work fine. Same for never repeating alarm. I had it only for weekdays and it was fine..but some posts say otherwise. You can test this easily..