20:20 to 21:00 in the evening. According to the Zhangzhou local treasure search, the opening hours of Nanjing Zhongshan Bridge musical fountain are from 20:20 to 21:00 in the evening. Nanjing Zhongshan Bridge Musical Fountain Project is a major construction project of urban and rural people's livelihood infrastructure in Nanjing in 2017, with a total investment of 11 million yuan.