9: 00 am-11:30 am, and13: 30 am-18: 00 pm. According to the inquiry of Xuzhou Municipal Bureau of Human Resources and Social Security, the working hours of Xuzhou Human Resources Service Center are 9: 00 am-11:30, and afternoon 13: 30- 18: 00 (closed on weekends). Xuzhou, referred to as "Xu" for short, was called Pengcheng in ancient times. It is a prefecture-level city and sub-central city under the jurisdiction of Jiangsu Province, and a national historical and cultural city approved by the State Council.