What month is late spring? What month is late spring?
2. Solar terms refer to the twenty-four solar terms and climate, and refer to the twenty-four specific solar terms in the solar calendar (dry calendar) that indicate seasonal changes. They are formulated according to the position change of the earth on the ecliptic (that is, the orbit of the earth around the sun), and each one corresponds to a certain position reached by the earth every time it runs 15 on the ecliptic.
3. Twenty-four solar terms are a knowledge system formed in ancient times by observing the movement of the sun for one year and understanding the changing laws of the four seasons, climate and phenology in a year.
4. Divide the sun's annual movement track into 24 equal parts, each equal part is a solar term, starting from beginning of spring and ending with severe cold, and so on. The lunar calendar in China is a combination of yin and yang, based on the movement of the sun and the moon.