After 65438+1October 15. According to official website, Education Bureau of Xining City, the holiday time for middle schools in Xining City should not be earlier than 1.05 from 2002 to 2022, and the make-up time for high school graduates in 2022 is 1.05 to 2 1.07. It is forbidden for other grades to organize students to take classes or make up lessons collectively for any reason, so the winter vacation time of Xining High School is after 1. 15.