I can’t speak for federal, but for state prison (at least in one midwest state—I imagine it’s somewhat similar everywhere). Everyone works (as in a job). Depends upon what your job is, but they will work all day (like a normal job) + break for lunch. Most people are up by 6:15am, but breakfast is from 5-8am. If you work in the kitchen, you’d need to be there earlier. If you’re in, say, the weld shop, maybe you get in there around 8am or whenever the leader of the shop arrives. ‘In your bunk’ time at night is around 10pm. There are multiple times during the day when they are lined up and counted. Etc. Etc. Let’s see if we learn more about where he is going to. Then it should be fairly easy to get more info.