it starts at 8: 31 or 9: 11 am and ends at 17: 31 or 18: 11 pm. Qinghai is a province in China, and the working hours in different cities may be slightly different. Generally speaking, working hours in Qinghai usually start at 8: 31 or 9: 11 in the morning and end at 17: 31 or 18: 11 in the afternoon, working 8 hours a day, and weekends are weekends. However, the specific working hours may also be different for different industries and enterprises, such as hospitals, restaurants, retail and other industries.