202 1 beginning of winter is the knowledge about beginning of winter in the lunar calendar.

1, 202 1 beginning of winter is the third day of October in the lunar calendar, and the Gregorian calendar is 1 1.07.

2. As for the source of beginning of winter, it first appeared in the Twenty-four Solar Terms Classic, which said, "Li, Ye." He also said: "Winter is the end, and everything is collected." It means that all crops have been harvested and stored at the beginning of winter, which not only represents the arrival of winter, but also represents the end of crops and the hibernation of animals.

3. Because beginning of winter season is the season of harvest of crops and hibernation of animals, it also means that plants and trees have withered in winter, and everything goes into hibernation, waiting for the arrival of spring, and then rejuvenating.