Well, I would imagine it depends on where you go. Fall P1 I had to go to class at 7:30 in the morning 3 days a week, and basically had class until 3. Monday and Friday I only had class from 10:30 to 12:30.
Spring I had class from 12:30 to 4:30 MWF. Tuesday 8:30 to 4:15, Thursday 11:30 to 4:15. I know I had some breaks in there somewhere, but don't remember exactly.
This semester's really nice. MF 8:30 to 10:30. TH 11:30 to 1:30. W 8:30 to 1:30.