When the futures pass is placed in call auction, the call auction can be established. When futures are in call auction, it's ok to place orders. The call auction time of futures with night trading is 20: 55-2 1: 00, of which 20: 59-2 1: 00 is the futures matching time. Futures without night trading are at 8: 55-9: 00 am, of which 8: 59-09: 00 is the futures matching time, and the opening price of futures is generated when the market opens.