Starting Sunday, March 8, Beijing time, the United States will shift to Daylight Saving Time. As a result, beginning March 9, both the opening and closing times for the US stock market will occur one hour earlier. Pre-market trading will run from 16:00 to 21:30 Beijing time. Regular trading hours will be from 21:30 Beijing time until 04:00 the following day. After-hours trading will take place from 04:00 to 08:00 Beijing time.