Which of the five fields does the 24 solar terms belong to?

According to the standards of the United Nations Convention for the Safeguarding of Intangible Cultural Heritage, intangible cultural heritage can be divided into five categories. The "twenty-four solar terms" as a whole belong to the fourth category of heritage.

"Twenty-four solar terms" mainly requires word of mouth, which is the first feature. Express some traditional arts, social customs, etiquette, festivals, including some knowledge and practice of nature and even the galaxy and universe. Not only China people, but also Chinese people all over the world are using intangible cultural heritage with world influence. The twenty-four solar terms are more in line with the intangible conditions of the world.

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"Twenty-four solar terms" is a knowledge system formed by ancient people in China by observing the annual movement of the sun and understanding the changing laws of seasons and climate. The ancients divided the sun's annual trajectory into 24 equal parts, and each equal part was a "solar term", collectively called "twenty-four solar terms".

Twenty-four solar terms have a long history, among which four solar terms "winter, summer, vernal equinox and autumn equinox" were recorded in Lu's Spring and Autumn Annals at the end of the Warring States Period.