Open 4-5 days a week. According to the regulations of primary and secondary education, there will be corresponding library opening hours every week, but due to the great differences between different schools, the specific opening hours will be slightly different, basically 4-5 days per week. Primary and secondary school libraries are open from 9 am to 6 pm every day, and students are required to apply for library cards and library cards in a unified manner. Books must be returned in time within 5 days of borrowing, otherwise they will be punished.