What does 69 mean?

Sixty-nine is a folk solar term. The earliest number of nine songs handed down from generation to generation can be found in the Dunhuang document "Poems on Bo Jiujiu": On the 69th, the spring breeze blows on the face, and a hundred herbs sprout, so you can go out without clothes.

1, "69" means the sixth nine days. The ancients thought that the total cold time was 8 1 day. Starting from the date of winter solstice, every nine days are counted as "nine", and the weather is warm until "ninety-nine" is the eighty-first day. There is a saying in the proverb that "spring strikes six or nine heads", which means that spring is not far from the arrival of six or nine.

2. China lunar calendar uses "99" to calculate seasons. The first day of the winter solstice is "19 days", and every 9 days is a "9". The first nine days are called "99", the last nine days are called "29", and so on. After "99" 81day, winter will end and spring will enter, which will be the coldest year of the year.

The number nine was very popular in the Southern and Northern Dynasties. "Liang Chao Shu Jing Chu Chun Qiu" records: "The winter solstice is 998 1 day, which is the end of cold." Count nine cold days, that is, from the solstice of winter, count a "nine" every nine days until the "99" of 81 days, and the weather will warm up.

4. According to "Yanjing Age", "The winter solstice is difficult to March 9." It means that it has entered the coldest stage in cold weather since March 9. "Jing Fang Yizhan" said: "The solstice after winter, the 30th is extremely cold." "The third day after beginning of winter is the coldest day in December from solstice." Later, it was generally considered as the coldest day in March and September.