8 hours a day in the classroom, 3 hours a night (apart from fridays!) and 5 hours sat and sun and i am approaching the exam dates too fast!
beware there is tonnes and tonnes to learn and you will find that you need to use as much time as you can to learn it and do practice questions.
Saying that it all depends on how you are doing it, ie one subject at a time or over a long time period.
Good Luck though
Rocky