The study system of the university is to attend classes from Monday to Friday and rest on Saturday and Sunday. You can take part in some club activities on weekends according to your own schedule. There are ten small classes a day, two large classes start at 8: 00 in the morning, two large classes start at 2: 00 or 2: 30 in the afternoon and one large class starts at 7: 00 or 7: 30 in the evening. Two small classes are a big class, with a break in the middle. Unlike high school, college classes are full every day. There may be classes all day, sometimes only 1 class or even no class. Some universities require students to study at night, but others do not. There are still many universities that study at night when they are freshmen, but there is no requirement for sophomores and juniors. Whether a university has evening self-study depends on which university, but some schools will also make changes, which may increase or decrease evening self-study. But most schools have evening self-study classes for freshmen, and nothing else. But if you want to study by yourself, you can go to the study room or the library. Sometimes there are classes in the evening, and when there are no classes, I go to study in the evening.