What does "June 21st, August 23rd" mean in solar terms?

It means that 2 1 is a solar term every 6 days in the first half of the year, and every 8 days and 23 days in the second half of the year, with a general difference of one or two days. 65438+10-June is the first half year, and July-65438+February is the second half year.

The complete 24 solar terms are as follows:

The spring rain shocks the spring and the valley, and the summer is full of mountains and summer heat.

There are dewdrops in autumn, first frost in cold, light snow in winter and cold in winter.

Two festivals in a month remain the same, with a difference of one or two days at most.

The first half of the year is 62 1, and the second half is 823.

There are four seasons in a year: spring, summer, autumn and winter. There are six solar terms in each season and two solar terms in each month. Solar terms are a summary of seasons and climate, a supplementary calendar created by working people in ancient China using their own experience to guide agricultural production, and a crystallization of Chinese wisdom.