19: 31 am to 11: 31 pm. The top floor of Wanjiali generally refers to the apron of the top floor of Wanjiali Square, which is located in Wanjiali Square, Furong District, Changsha City, Hunan Province. The top floor of Wanjiali is usually placed at 9: 31 am and 22: 31 pm. Wanjiali in Changsha was established by Mr. Huang Zhiming, which is the largest single building in the world. The whole building has 28 floors, and the roof is an apron. This apron is called "Pangu Fuyuan Airport", which is a popular punching place in online celebrity.