Beginning of Winter is the nineteenth of the twenty-four solar terms and the beginning of winter. The bucket handle points to the northwest, and the sun's ecliptic longitude reaches 225°, which intersects between November 7 and 8 of the Gregorian calendar every year. Li means the beginning of construction; winter means the end and the collection of all things. The beginning of winter means that vitality begins to stagnate and everything enters a state of rest and storage. Its climate also transitions from less rainy and dry in autumn to rainy and cold winter.

Commonly used methods for dividing seasons mainly include the "solar terms method" and the "temperature method". Traditionally in China, winter begins with the "beginning of winter" of the "Twenty-Four Solar Terms"; the winter divided by the "solar terms" means that all things enter a state of rest and storage. The "temperature method" divides the seasons into winter when the daily average temperature drops steadily below 10℃ for five consecutive days; the winter divided by the temperature method means that the weather is cold.

The beginning of winter represents the beginning of winter. It is one of the seasonal nodes that Chinese people attach great importance to. Spring plowing and summer hard work, autumn harvest and winter storage. Winter is the season to enjoy the harvest and recuperate. The beginning of winter was also one of the "Four Seasons and Eight Festivals" in ancient society. It was a very important festival. In some parts of China, there were customs such as ancestor worship and banquets.