What day is June 65438+ 10/0 in 2020?

Nine days of 65438+1October 10 in 2020: the second day of March 9.

Jiujiu, also called Jiujiu in winter, is a folk method to calculate the date of warm flowers in spring and cold days in China. Generally, March and April are the coldest time, which is the coldest time of the year. When you count to nine "nine days" (998 1 day), spring will be deep and warm, and everything will be full of vitality. It's time for spring ploughing.

The number nine method is passed down from mouth to mouth among the people in our country, which has a history and lacks records. As for when it originated, there is no exact information. In traditional culture, nine is the extreme number, the "highest yang" number and the largest number. The accumulation of "Zhiyang" means that Yin Qi is decreasing day by day, and it is tired to the end, which means that the cold is getting warmer and "the spring is deep".

Extended data

During the winter solstice, the daytime is the shortest, the angle of direct sunlight on the ground is the smallest, and the sunshine intensity per unit area on the ground is also the smallest, so the ground gets the least solar heat every day, and the daily heat budget deficit on the ground has not reached the maximum. After the winter solstice, although the day is growing day by day, the growth rate is very slow. From the winter solstice to the "March 9" period, the average daily growth is only about one minute.

At the same time, the angle between the direct angle of the sun and the ground slowly increases, and the daily heat budget of the ground is still in a deficit state, so the heat is continuously lost and the ground temperature continues to drop. The deficit of total heat budget on the ground only reached the maximum in April and September, and the temperature was mainly affected by the ground temperature, resulting in the lowest temperature in March and April.