Are you asking about the business hours of Tian Hong Vientiane Library in Stadium Street, Zhangdian District? From 8: 30 to 20: 00 According to Dianping.com, Tian Hong Vientiane Library, located in Stadium Street, Zhangdian District, is open from 8: 30 to 20: 00 all year round. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education.