8 am to pm 10. The library of Hebei University of Water Resources and Electric Power is open from 8 am to 8 pm 10. On the first day, the library's self-service book borrowing and returning system, book retrieval system, reading seat reservation system, e-book lending system and e-book bag storage system operated normally. Readers can consciously cooperate with the temperature test, wear masks all the time, enter the library more than 2,500 times, and borrow and return more than 500 books. Reading and learning are in good order.