Can I go to Huangshan after the appointed time?

I can't. According to the query of Huangshan Tourism official website, you can't go to Huangshan after the reservation time. Tickets for Huangshan Scenic Area are only valid on that day. We should apply for cancellation within 7 days if it is not used after the expiration date. Huangshan Mountain, known as Zhishan in ancient times, is located in Huangshan City in the south of Anhui Province, China, and is a world cultural and natural heritage. The mountain range is 40 kilometers long from north to south and 30 kilometers wide from east to west. It runs continuously between huangshan district, Huizhou District, Xiuning County and yi county, with a total area of about 65,438 0.200 square kilometers, of which Huangshan Scenic Area covers an area of 65,438 0.60 square kilometers. 1979, Huangshan Scenic Area was officially opened to the public.