What are the meanings of "62 1" and "823" in 24 solar terms's ballads?

Sixty-one: sixth and twenty-first (20: pronunciation niàn means twenty)

August 23rd: 8th, 23rd (20: pronounced niàn means 20)

In the first half of the year, there were two solar terms in each month. The first solar term was around 6th and the second solar term was around 2 1. In the second half of the year, there are two festivals every month, the first one is around the 8th, and the second one is around the 23rd.

Twenty-four solar term song is a poem compiled for the convenience of remembering the twenty-four solar terms in the ancient calendar of China. Solar terms refer to the 24 solar terms and climate. It is a calendar made in ancient China to express seasonal changes and guide farming. It is the crystallization of the long-term experience and wisdom of the ancient working people in China.

The ballad is as follows:

The spring rain shakes the spring and clears the valley, 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.