2. The specific calculation method is: from winter to Sunday, every "nine days" is counted as a "nine", the first nine days are called 19, the last nine days are called 29, and so on, and the coldest period in a year is 349 days.
3. Counting to the 81st day of the Ninth Five-Year Plan, "90% of the peach blossoms bloom". At this time, the cold is exhausted and the weather is warm.
4. The date of winter solstice every year is Gregorian calendar 65438+February 2 1-23. From the date of the winter solstice to the 81st day, that is, the end of March in the solar calendar (around the vernal equinox), peach blossoms are in full bloom and spring is in full bloom.
5. Due to China's vast territory, the climate varies greatly from place to place, which is not the case in the whole country. Only parts of China have corresponding numbers of 9 "998 1 day, 998 1 day, 998 1 day, 998 1 day.
6. There is a folk proverb: "The solstice in summer is the third watch, and the solstice in winter is the ninth watch.
7. "Law No.9 has been passed down from mouth to mouth in China since ancient times, with a history and a lack of records. As for when it originated, there is no exact information.
8. Why count "nine"? Why not count to eight? This has something to do with the ups and downs of Yin and Yang in China's traditional philosophy. The length of Yang and the disappearance of Yin symbolize that warmth comes and cold goes.
9. "Zhiyang", also known as Lao Yang, has the largest number. The accumulation of "Zhiyang" means that Yin Qi is decreasing day by day. After nine times of fatigue, it has come to an end, indicating that the cold has gone to warm up and the "spring is deep".