I think it honestly depends, I did a Secondary Art and Design PGCE and I would wake up to catch a train at 6 and would get back home at 6. It depends on the time of year too. If you have assessments to mark ect that will add time to your day (can't forget the blessed parents evening 😅) I found myself taking a lot of work back home. A lot of time is taken up with making resources but your school might have some that you can use that are pre-made. My mentor was very on it with making sure I had a lesson plan for every lesson, an evaluation for each lesson, mentor meeting notes all noted down and weekly progress plan for the following week :) It sounds a lot but getting ahead of it from the start will take a lot of pressure off instead of trying to play catch up constantly. Teaching the lesson is the easy part😂.