This time I am lucky because I get to borrow a real classroom. It takes me about 20 minutes to set-up the chairs and stands by myself. The students arrive in staggers because the classroom teachers release them at different times, sometimes as late as 10-15 minutes. Tear down the room and set back up for the classroom teacher. This is a small class so it does not take as long.
Class is in the cafeteria.
If the janitors get a late start or are polishing the floors then I have to drag my class around the school and search for a spot to have class. This usually happens at least once or twice a month. A classroom I don't have to build or create. A planning time. A lunch time.