The trading hours of the derivatives market under the Hong Kong Stock Exchange and the bidding trading hours of the securities and derivatives markets will also start ahead of schedule from that day. In the derivatives market, the morning trading time was adjusted from 9: 45 to 12: 30 to 9: 15 to 12, and the afternoon trading time was adjusted from 14: 30 to15. The bidding period in the securities market is advanced from 9: 30 to 9: 00, and the bidding period in the derivatives market is advanced from 9: 15 to 8: 45.