I must say this thread is a prime example of the sickness out there. You can look at any manager's or executives posted schedule and they will generally have little or nothing scheduled before 0900 or after 1500. There is a very good reason for this. It is not because they only work between 0930 and 1500 it is that you always try to keep the morning open for things that have come in overnight. You always try to keep your afternoon open for things that come up durning the day.
To suggest anything is outside the norm of this and to even make his schedule a point of contention says more about the sickness of the people (trying) to make a point of this rather than about the President. If this schedule makes you think a) that he is not working or b) is proof that he is not working then please seek a mental health professional. There is something upstairs that is not functioning properly.