3-5 hours. Today, the Nanjing Presidential Palace covers an area of about 90,000 square meters and is divided into three visiting areas: the central area mainly includes the National Government, the Presidential Palace and its affiliated institutions; There are Sun Yat-sen's temporary president's office, secretariat, West Park, Sun Yat-sen's living room and staff headquarters in the west area. The Eastern District mainly includes the Executive Yuan, TaoErh Lin Temple, stables and East Garden. In the three visiting areas, there are more than ten historical sites and restoration exhibitions, including the Presidential Palace, Sun Yat-sen and the Nanjing Provisional Government, the Taiping Heavenly Kingdom and the Governor's Office of Qingliang River. It takes more than 3 hours to walk 90,000 square meters, plus 3-5 hours to listen and explain.