any long distance bus from changsha to zhangjiajie and fenghuang, and also the timing

Hi, you can take the long-distance bus at the West Bus Station to Zhangjiajie directly, which are scheduled from 08:00 to 19:00.
As you also want to go to Fenhuang, you can take the bus at the same station. But the buses are in operation at 10:40, 15:20, 17:20.
In case, you can certainly check in a nearby hotel. Well, Ruyi Jiating Hotel can be very convenient. It is located at the exit of the station.