Tourists buy train tickets at Nanjing Railway Station in Nanjing, East China's Jiangsu Province on August 27, 2022. August 27 is the first day for train tickets to be sold for Mid-Autumn Festival, a time of reunion for families. The festival is usually held on the 15th day of the 8th month of the Chinese calendar. This year's Mid-Autumn Festival falls on September 10. Photo: VCG