Since the contract number has been formed, it has formed an agreement to send it to the exchange at the opening, and this agreement and obligation should be fulfilled. So by Monday 9: 15, the pending orders that have formed contracts should be sent to the exchange. Otherwise, it will involve cheating. If you can't, you shouldn't leave this seemingly "yes" loophole in the software.

So, if you try to find a pending order after the close of the afternoon, then this pending order is the pending order for the next trading day. I tried to place an order at 15: 0 1, which just closed, and the result was an order for the next day.