September 15. According to the query of the National College Students' Mathematical Modeling Competition Network, the time of the National College Students' Mathematical Modeling Competition in 2022 is from Thursday, September, 2022 18 to Sunday, September, 20:00 18. Founded in 1992 and held once a year, the Mathematical Modeling Competition for Chinese College Students has become the largest basic subject competition in China and the largest mathematical modeling competition in the world.