What day is February 29th?

Twenty-ninth is the day when the solar term of the winter solstice has just started to be calculated, and there is a second nine days.

Twenty-nine days refers to the tenth to eighteenth days from the winter solstice. There is a saying in the China lunar calendar called "Jiujiu", which is used to calculate the seasons. The calculation method is to count a "nine" every nine days from the winter solstice until the "nine-nine" is the eighty-first day, when peach blossoms are in full bloom and the weather will be warm.

29 refers to the second nine days from the date of the winter solstice. Jiujiu, also called Jiujiu in Winter, is a folk method in China to calculate the date of cold weather and warm spring in bloom. Generally, March and April are the coldest time, which is the coldest time of the year. When you count to nine "nine days", spring will be deep and warm, and everything will be full of vitality. It's time for spring ploughing.

The origin and significance of Nine Songs;

"Counting Nine Songs" is an image description of 8 1 day from winter to the future in ancient China, and it is also the coldest time of the year. In this "hardest" cold season, people count to nine and live with only one finger. "99 Songs" describes people's feelings about the cold and the change of phenology. It rhymes popular, catchy and easy to remember.

Why count to nine? This is related to the rise and fall of Yin and Yang in China's traditional philosophy. The disappearance of Changyang and Yinyang symbolizes the arrival of warmth and the departure of cold. Nine is the number of "Zhiyang", also called Lao Yang, and nine is the largest number. The accumulation of "Zhiyang" means that Yin Qi is decreasing day by day, and it is tired to the end for nine times, which means that the cold is getting warmer and "the spring is deep".

Every nine days, the weather changes in cold and warm. Based on long-term experience, people record these images, summarize them and compile them into folk proverbs, which are called "Jiujiu Songs". Because our country spans the north temperate zone and subtropical zone, the climate change is different in different places, so the content of Jiujiu Song is different in different places.