What are the solar terms in 39 days? Introduction of 39 days.

1 and Sanjiu refer to the third solar term in winter.

2. Three or nine days refers to the third "nine days" from the winter solstice, that is, the winter solstice after 19-27. China lunar calendar uses "99" to calculate the season, the first day of the winter solstice is "19 days", and every 9 days is a "9".

The first nine days are called "September 19th", the last nine days are called "February 9th", and so on. After 8 1 day, winter ends and spring enters. The coldest period of the year is March 9.

The coldest days are March 9th and April 9th. In Jilin, dogs froze to death in March 1949, and in Jiangsu, the old man who picked up dung traveled all over the streets in March 1949. It can be seen that the temperature varies greatly.