Season refers to the twenty-four seasons and climate, which is a kind of supplementary calendar used to guide agricultural affairs in ancient China, and is the crystallization of the long-term experience and wisdom of the Han Chinese working people.

Since ancient China was an agrarian society, agriculture required a strict understanding of the sun's orbit, and farming was conducted entirely on the basis of the sun, the "twenty-four seasons", which reflect the sun's cycle, were added to the calendar and used as a criterion for determining the intercalary months.

The Chinese orthodox 24 solar terms are based on Henan. The Chinese lunar calendar is a yin and yang calendar, which is based on the movement of the sun as well as the moon, so the inclusion of the 24 solar terms better reflects the sun's cycle.

The 24 solar terms are: spring, rain, hibernation, spring equinox, ching-ming, rain, summer, full moon, mango, summer solstice, summer heat, summer heat, autumn, summer solstice, white dew, fall equinox, cold dew, frost, winter, snow, snow, winter solstice, chilly, cold

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