Half an hour. According to the announcement information of the fireworks display in Zhengzhou Olympic Sports Center, the fireworks display time is from June 65438+1October 2 1 day to February 5 at 8:00-8:30 pm. Zhengzhou Olympic Sports Center is located in Xihu New District, Mayor of Zhengzhou, Henan Province, China Province, with a total construction area of 584,000 square meters, with floors 1 1 above ground, including 1 Stadium, 1 Class A Gymnasium and 1 Class A Swimming Pool.