What is nine?

Jiujiu, also known as Winter Jiujiu, is a folk solar term in China. The number nine begins at the end of winter in 65438+February in the Gregorian calendar every year. When did the custom of counting nine originate? At present, there is no exact information, but some historical materials will be recorded until the beginning of the Japanese winter, which originated in the Han Dynasty. However, it was still very popular at least in the Northern and Southern Dynasties.

Count nine cold days, that is, from winter solstice to Sunday, count nine every nine days until the eighty-first day, and the weather will gradually get warmer. In fact, it is "99-99, plowing cattle everywhere"-90 days, which is 9 days.

Extended data

In the traditional culture of China, nine is the extreme number, which is the largest, largest and longest concept. Nine nines is eighty-one, which is the largest number. People in ancient China believed that after the solstice of the 998th1winter, spring would definitely come.

The winter solstice is the first day of September 19. We have a saying here that "winter counting nine" means counting nine from the day of winter solstice, so the winter solstice is the first day of September 19.

Starting from the solstice of winter, counting backwards for nine days, the weather will change from the cold of winter solstice to the "warm day of late spring". Because the process of "counting nine" is the process that the cold pole turns warm and the cold air turns warm, people often call this 998 1 day "nine days" and "counting nine cold days"