Some habits break hard

These days I am supposed to wake up an hour later than I was a couple of weeks ago. Or perhaps it would be more accurate to say that I am supposed to wake up at exactly the same time, except that exactly the same time is now an hour later. It is somewhat confusing.
My mobile phone is supposed to make sure that I wake up an hour later than I usually would, or exactly at the same time, however you would have it; it automatically resets to Standard Mountain Time at the time appointed. Things do not really work that way, though; most mornings I still wake up about an hour before I am supposed to, and before the alarm goes off.
Eventually, after a few weeks, I usually find that I have made the adjustment, so that it is actually, again, the alarm that wakes me up.