Return transport to Beijing and closing hours for Simatai at night

Hi,

Could you please advise if tourist bus schedule remain the same as follow and where can we take the bus

From Monday to Friday, the departure times are 13:00, 17:00, 21:00. During weekends and holidays, they are 12:00, 17:00, 19:00, 21:00.

Please also advise operating hour of simatai great wall at home.

Thank you.