11 am to 18 pm. According to the query website, Xuzhou Underwater World is located opposite to Wenchang Campus of quanshan district University of Mining and Technology in Xuzhou City, Jiangsu Province. The operation time starts from October 2, 2122, and it is open from 11 am to 18 pm, and the park is closed at 17: 31, so the business hours are from 11 am to 18 pm.