Opening Until June 20th, 2023, the East Gate Library of Goldfish Park in Baiyin District of Baiyin City was opened. The opening hours are from Tuesday to Sunday, opening at 8: 30 in the morning and closing at 9: 30 in the evening. Baiyin City, also known as "Copper City", is a prefecture-level city under the jurisdiction of People's Republic of China (PRC) and Gansu Province, located in the central and eastern part of Gansu Province.