When did 20 19 enter the 99 calendar?

The number nine starts from the winter solstice of 65438+February in the second half of June in the solar calendar every year, which is a solar term suitable for northern China, especially the middle and lower reaches of the Yellow River. From the day of the winter solstice, it enters the "number nine", commonly known as "cross nine", and then every nine days is a unit, called "nine". After nine "nines", it happens to be eighty-one days, that is, "nine out", and then spring blossoms.

In ancient China, especially the working people of the Han nationality in the northern area, the conditions for keeping warm from the cold were even simpler than their descendants, and the cold winter was regarded as a threat and punishment from heaven. People even think that winter is inexplicably long, and the fear of freezing in the cold directly affects people's mood.

In order to survive the long and harsh winter, people invented the method of "counting nine" to pass the time to alleviate the psychological crisis under the threat of winter. At that time, counting nine around your family was also regarded as a carefree state, and this custom has been passed down to this day.