No, first of all, we should know that university libraries are not for-profit libraries. They are open according to students' schedules. For example, many schools require students to go to bed at 1 1: 30, so general libraries are closed around 1 1: 30. However, there are also some special circumstances, such as when there are many people in the postgraduate entrance examination season, at this time, some school libraries will extend their opening hours.

Most universities will not be open 24 hours a day, because security guards have to rest, even if they work in shifts, they will still be negligent at night, and security problems cannot be guaranteed.