The trading hours of S&P 500 index futures are the same as those of Nasdaq and Dow, which are divided into daylight saving time and winter collar time. Daylight saving time is March 10, and Beijing time is 6- 14. The next day 16.30— 4.59. The trading hours of 10 to February of the following year are 7- 17 and 14 Beijing time. The next day 17.30— 4.59.