When is May 9, 2023?

May 9: 65438+20231October 27 ~ February 4, 2023.

May 9th is a folk solar term. See Dunhuang document Bo 40 17 "Poems on Ninety-nine" for the earliest number of nine poems handed down from generation to generation: May 9th, the white ones are getting longer and longer, and the sun can shine into the room after it comes out. The first day after May 9th is the 29th of the twelfth lunar month and New Year's Eve.

Generally speaking, the temperature in Dongying will continue to drop after the winter solstice, and the coldest time is 65438+ 10. More commonly, there is a custom of eating jiaozi on the winter solstice in northern China.

Related introduction:

There is a folk saying that "the summer solstice is three years old and the winter solstice is nine years old." The number nine method is passed down from mouth to mouth in some places in China, which has a history and lacks records. As for when it originated, there is no exact information. The ancients followed the example of the sky, took the image of the land, set solar terms to know solar terms, and made calendars to know time changes; Qi is divided into yin and yang, everything flows, man and astronomy are interlinked, and Tao becomes nature.

In China's traditional philosophy, the rise and fall of Yin and Yang symbolizes the arrival of warmth and the departure of cold. In traditional culture, nine is the limit number, which is the largest, most and longest concept.

Nine nines is eighty-one, which is the "maximum" number. Nine is the number of "the sun", also called, and nine is the largest number. "Sunrise" accumulates over time, indicating that Yin Qi is decreasing day by day, and it is exhausted for nine times, indicating that the cold is getting warmer and the "spring is deep". It's time for spring ploughing.

The method of calculating cold and warm by number nine is suitable for areas with obvious temperature changes before and after the winter solstice in China. The calculation of temperature and warmth changes is accurate to days. Judging from the number of days of the winter solstice, the coldest period is "March 9 and April 9", and counting "998 1 day" is the warmest day in late spring.

There are also some places that start counting nine from the winter solstice. In some cold areas, the temperature in winter and spring in the ice and snow is below zero degrees Celsius for a long time, and the temperature changes are not obvious before and after the winter solstice. "Nine days" is not much different from the temperature. For the convenience of counting nine, counting from the date of the winter solstice, that is, the date of the winter solstice is called "crossing nine", and every nine days is "nine", and so on.