During your first 2 years, class is from 8-12 every morning. These lectures rarely have mandatory attendance. Anatomy lecture "requires" attendance every day, but you don't really have to go everyday after you max out your clicker points (MS3 now though so idk if they've changed that). You'll usually have 2-3 days a week with something mandatory in the afternoon (the easy year-round classes meet in the afternoon, and you'll also have most of your Clin Med SPBL stuff in the afternoon). I would say an average week the first 2 years consists of 3 days a week with a total of 7 hours required attendance. Obviously some weeks will have a lot more, and some a lot less, but most weeks are in that 2-3 day sweet spot.
As far as when you study, that varies from person to person and whether you home school or not. Personally, I woke up around noon most days, looked over a little bit of stuff from yesterday until the current day's lecture got posted about 2 pm, watched that day's lecture, and then was done for the day unless it was almost time for a test.
3rd year, your schedule = live at the hospital.
4th year is the promised land.