To answer this question, we need to know the distance between Jianglang Mountain and Nianba Ancient Town, as well as the specific departure time of the tourist bus. Under normal circumstances, if you are starting from Jianglang Mountain, it is recommended to inquire about local traffic information in advance or check the special bus departure timetable in the travel brochure in order to calculate the appropriate time to go down the mountain. Generally speaking, if a special car departs from Jianglang Mountain at 8 a.m. every day, considering that the journey down the mountain may take 1-2 hours, you need to start going down the mountain at least between 6 a.m. and 7 a.m. in order to have enough time to arrive at the Nirvana Mountain. Bago Town and catch the special bus. However, the specific time needs to be adjusted according to the actual situation. It is recommended that you contact the local tourism department or hotel front desk for the most accurate information.