8:30- 17:30。 According to the information from official website of Yuzhong County Education Bureau, the County Admissions Office is located at No.0/72, Yun Qi North Road, Chengguan Town, Yuzhong County, Lanzhou City. Working hours are from 8: 30 to 17: 30 from Monday to Friday, and rest on Saturday and Sunday. Yuzhong County, which belongs to Lanzhou City, Gansu Province, is located in the middle of Gansu Province.