depends on how much you want to know/score and your style. some ppl read from books only and don't even go to class, some read slide, others both. if u want to read what you learnt in class every day on the same day, you may not have enough time and might need weekends. needs around 6hrs average. that is if u want to be a good doctor and perform well during clinical years instead of being confused and doubtful all the time. otherwise examim yidegemal remedialim ale yitalefal