2. Tomb-Sweeping Day is an important traditional festival in China and one of the important "eight festivals", which usually falls on April 5 of the Gregorian calendar; But the festival is very long, and there are two sayings: "eight days after the first ten days" and "ten days after the first ten days". These nearly twenty days are festivals in Tomb-Sweeping Day. As the fifth solar term in the twenty-four solar terms of the lunar calendar, Qingming represents the official start of the Ji Chun season.