Xinnanmen Bus Station to Hailuogou

Hi may i know the latest bus time to Hailuogou. I keep getting different departure times from various sites such as 9:00,9:30,9:50,10:10.
I wont be able to make it if the buses depart before/at 9:30.. hoping there are busses at 9:50 or 10:10 Thanks in advance.