rush from Tianmenshan to Tianzishan

Hi, I plan to cover Tianmenshan and finish at 4pm then take a local bus to Tianzi Mountain where I have booked my accommodation up in the mountains. I plan to buy my entrance ticket to Tianzi Mountain online. If I enter Tianzishan just before 6pm are there still buses to bring me to my accommodation at Daguantai up in the mountains? Thank you.