2. US stocks opened at 9: 30pm Beijing time and closed at 3: 30am. Winter starts at 10:30 pm and ends at 4:30 am Beijing time. The trading hours of the US stock market are uninterrupted, that is, "no rest at noon".
3. Daylight Saving Time Implementation Time: Since 2007, according to the new energy-saving bill, the United States has extended the implementation time of Daylight Saving Time, with the start date advanced to the second Sunday in March and the end date postponed to the first Sunday in June.