At K-State, first year Monday through Thursday we were in lecture from 8 or 9 am until noon (10 minute breaks between each class), then an hour for lunch, and then in the afternoons there were electives Tues and Thurs from 1-2, and then anatomy lab from 1-4 or 2-5 depending on the day. We got done early with anatomy lab sometimes depending on how long the day's assignment was, or how long your group wanted to stick around to review things. Fridays were our exam day, we had usually one exam a week on Friday morning, and then the rest of the day free, other than a couple electives were on Friday afternoons. The schedule has changed a bit since I was a first year because they've added clinical skills, so now their Fridays aren't necessarily free after their exam.
Second year the hours were pretty similar, generally 8-4, but it wasn't just lectures in the morning and lab in the afternoon, we went back and forth between lecture and lab more. First semester we were done more like 2 or 3 some days if it was a short bacteriology lab, second semester we had lectures until 4 some days. Most of our tests were on Wednesday afternoons, but we more often had more than one exam a week. Again, the current second years have less free time in their afternoons than my class did, thanks to clinical skills.
Third year we have lectures from 8 or 9 to noon each day, and then afternoons are just electives, clinical skills, and junior surgery lab on either Monday or Wednesday afternoon. Our tests are on Fridays and Mondays from 8-9. I've heard second semester afternoons are even more free since a lot of the clinical skills labs are optional large animal things.
Here we have to take 12 hours of electives before fourth year, electives are one or two credit hours each. The options are kind of hit or miss, some semesters I've had to pick something I wasn't necessarily interested in, but most of the electives are pretty easy.