Universities and colleges almost all depend on the number of specialized courses you choose. If there are not many, you may have classes from morning till night, and you may have classes on Saturday and Sunday, but some professional courses are rare. Sometimes you/kloc-0 have classes twice a day or twice a few days. There are not many courses in each semester, and sometimes you have to study at night. Generally speaking, it is voluntary, but some schools have to go if they are strictly managed. Some schools don't study at night at all. Anyway, universities or junior colleges are basically free. You can have classes in cut class, and you rarely take care of them. See if you want to go to class. I have been there before.