During the normal teaching period, it is from 8: 00 to 22: 00 every day, including weekends, but it may be partially or completely closed on legal holidays or winter and summer vacations, and the opening hours may be reduced. Someone will clear all the books on the table at night, so that you can't sit down at night. You must get there early the next morning. Generally, it is easier for the library to find empty seats when it is not for postgraduate entrance examination and final examination. During the day, you are not allowed to sit down in principle, but everyone is basically like this. Details can be found on this website: /view.do? id= 127