Six days. Hangzhou subway station attendants can be employed after six days of training. Hangzhou, referred to as "Hangzhou" for short, is the capital of Zhejiang Province, a sub-provincial city and the core city of Hangzhou metropolitan area. It is the capital of Zhejiang Province, the economic, cultural, scientific and educational center of the whole province, and one of the central cities in the Yangtze River Delta.