Summer is one of the best seasons to visit Tibet. To meet the hot summer demand, a new train will start operating between Xining and Lhasa every day. Train K9811 departs from Xining at 22:40, stops over in Golmud at 08:05 the next morning, and arrives Lhasa at 21:05. Train K9812 departs from Lhasa at 16:35, stops over in Golmud at 07:06 the next morning, and arrives Xining at 16:25.
Currently, Trains to Lhasa are available from the following cities: Beijing, Shanghai, Guangzhou, Lanzhou, Xining, Chengdu and Chongqing. Note that trains operate every other day from some cities. For train schedules and prices, check out China Train Search. China Highlights offers carefully designed China Train Tours, and provide tailor-made tours according to customers’ interests and requests.
source from: http://www.chinahighlights.com/news/