How are we supposed to tell you? Lectures ought to be for the period specified. Generally an hour, but I finished summer term where I was doing a 4 hour grind per class.
From my own experience [at a huge university]: You'll spend most of your time out of class, where you'll have to figure out how to study, how to pass your tests without knowing your prof.'s expectations and without cheating, how to keep money in your pockets, and how to get the funk out of your clothing. You'll know how to do all of these after the first week, but you'll probably have to make compromises. Not enough time in the day, and, remember, you might have productivity-killing, alcoholic frat bro roommates. They need to use common resources and disturb you too. You may also find that none of your classmates want to study with you. They either (a) think they know it themselves and don't want to give you an advantage (you might wreck the curve), or (b) they just don't care and are already busy with their friends doing whatever. There could be 300-500 people in your class, so everyone will be a stranger and you'll most likely never again see or interact with the person you just met today. If you're in a rigorous major, you'll likely not have time to socialize or do anything fun, so you probably should have just stayed at home and gone to school locally. At least your uncle will take you out for a beer.
