20 19 24 solar terms

Each of the 24 solar terms is about half a month apart. It is divided into twelve months, and each month has two solar terms. In the twenty-four solar terms, "festival" refers to a segment of a year and is a representation of a period of time; And "qi" refers to climate, which is an overview of weather changes.

12 solar terms, including beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, heavy snow and slight cold; The second solar term of each month is "Zhong Qi", that is, rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, Dashu, Dashu, autumnal equinox, first frost, light snow, winter solstice, great cold, etc. 12 solar terms "solar term" and "Zhong Qi" appear alternately, each lasting 15. Now people have collectively referred to "solar terms" and "neutral gas" as "solar terms", that is, 24 solar terms.