Two sentences: what do you mean by coming on June 2 1 day in the first half of the year and August 23 in the second half?

There are two solar terms in each month in the first half of the year. The first solar term is around 6th and the second solar term is around 2 1. There are two solar terms every month in the second half of the year, the first one is around the 8th, and the second one is around the 23rd. A day or two at most.

In the first half of the year, 62 1, and in the second half of the year, 823 came from the song dynasty with 24 solar terms.

Twenty-four solar term song

The spring rain shakes the spring and the valley days, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

The two festivals remain unchanged every month, with a maximum difference of one or two days.

The first half of the year is June 2 1 day, and the second half is August 23.

Among them, the first solar term of each month is "solar term", that is, beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Heavy Snow, Xiaohan, etc. 12 solar terms; The second solar term of each month is "Zhongqi", that is, there are 12 solar terms such as rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, summer heat, summer heat, autumn equinox, first frost, light snow, winter solstice and great cold.

Extended data Twenty-four solar terms originated in the Yellow River Basin. As early as the Spring and Autumn Period, four solar terms were set, namely, mid-spring, mid-summer, mid-autumn and mid-winter. After continuous improvement and perfection, by the Qin and Han Dynasties, the 24 solar terms had been completely established. In BC 104, the taichu calendar written by Deng Ping officially set 24 solar terms in the calendar, and defined the astronomical position of the 24 solar terms.

Second, the five-character poem version of "The Whole Song of Twenty-four Solar Terms"

The rain in beginning of spring is falling, the insects are awake, the vernal equinox is near Qingming, and tea picking is in front of Grain Rain;

The long summer is small and full, and the mountain is big. The summer solstice is only a little summer heat, and the summer heat is three days;

Beginning of autumn is in summer, the white dew flies south, the autumn equinox is cold, and the first frost dyes the red leaves;

There is light snow in early winter, and heavy snow indicates a bumper year. The winter solstice lasts for nine days, with slight cold and severe cold.

Baidu Encyclopedia-24 solar term song

Baidu encyclopedia-24 solar terms