Opening at 6: 30 pm According to the opening notice of Zhengzhou Institute of Light Industry Library issued on September 4, 2020, the library of Zhengzhou Institute of Light Industry was closed on Thursday afternoon for business study. It will reopen at 6: 30 pm. The school library is open from 7: 30 a.m. to 7: 00 p.m. 10: 00 p.m. from Monday to Sunday, except for legal holidays. Every night after 10 is the centralized disinfection time, and key parts such as door handles, reading desks and chairs, stair handrails, elevators and toilets will be disinfected regularly.