09: 30 to 20: 00. According to official website, a local tyrant in Nanchang, the library of Nanchang Bayi Square is open from 09: 30 to 20: 00. Bayi Square is located in donghu district, Nanchang City, Jiangxi Province. Library is the external storage and selective transmission mechanism of social memory, which has the functions of preserving human cultural heritage, developing information resources and participating in social education.