What's departure time of VAN from east gate of Leshan Giant Buddha to Xinnanmen bus station?

Well, there is no direct public transport between the two. Instead, you can take bus line 13 from the Giant Buddha to Xiaoba Bus Station. Then, take a bus to Xinnanmen Bus Station. The buses are available from 7:00 to 19:00 at intervals of 30 minutes. So, there will be one deprature at 12:00. ;)