The opening time of the Qinghai Provincial Museum is 9:00-16:00, don't think it is really closed at 4 pm. In fact, it is only 4 pm that new tourists will not enter. The museum is really closed until 5 pm. The museum is rich in content and interesting, and the tour takes about 2-3 hours. You need to get your ticket for free with your ID card to enter the museum.