1, the time of the Autumn Festival in 2021 is 14:37 on August 7, 2021 by the Gregorian calendar, the 29th day of the 6th month of the 6th lunar year of the Xin Clown.

2, Autumn is the thirteenth of the twenty-four solar terms and the first solar term of autumn. Every year on August 7 or 8 depending on the sun reaches 135 ° yellow longitude for autumn. The word "立" means "beginning" and "秋" means the period of ripening crops. Autumn means the beginning of fall, and it is a festival that reflects the seasons. Ancient Chinese divided Autumn into three seasons: first, the arrival of cool winds; second, the birth of white dew; and third, the chilling of cicadas.

3, before and after the fall in most parts of China, the temperature is still high, a variety of crops grow vigorously, rice blossoms and fruits, a single late round stalks, soybean pods, corn draws male spitting, cotton bolls, sweet potato potatoes rapidly expanding, the water requirements are very urgent, this period of drought will give the final crop loss caused by the difficult to remedy.

4, "Autumn" is China's important annual festival, as early as 3,000 years ago, the ancients had a "day of Autumn to welcome the autumn in the western suburbs," the ceremony, and many customs. To this day, the Chinese people still have in the autumn this day "stick autumn fat" "bite autumn" and other customs.