How many days does the great cold end

In 2023, the severe cold solar term * * * has 15 days, counting from the severe cold day and ending the day before beginning of spring. The Great Cold is the last of the 24 solar terms, and it is called "Great Cold" every year when the sun reaches 300 degrees on June 20-2 1 day of the Gregorian calendar.

Quoting "Three Rites and Yizong" and "Shi's General Examination", it is explained: "Great cold is the middle, and the upper surface is slight cold, so it is called the extreme of great cold, so it is called great cold." It is said that a cold is a cold. This gas festival is the coldest period of the year during March 9 and April 9, when cold waves frequently go south.