Did you know? Over 2,000 years ago, Chinese people divided the year into 24 solar terms—Start of Spring, Rain Water, Awakening of Insects, Spring Equinox, Pure Brightness, Grain Rain… all the way to Great Cold. These 24 terms divide 365 days into 24 segments of about 15 days each, each corresponding to natural changes.
How were the 24 solar terms created? Ancient people observed the sun's position on the ecliptic and divided the year into 24 parts. It's actually a "solar calendar," based on the sun's movement to determine seasons. Since farming depends entirely on weather—when to plant, when to harvest—the 24 solar terms were the ancient "agricultural calendar."
Each solar term has its own characteristics and customs. Start of Spring means "biting spring" (eating radish). Pure Brightness means tomb sweeping and spring outings. Winter Solstice means eating dumplings (north) or tangyuan (south). Major Heat means drinking herbal tea. Each term has corresponding foods and activities, passed down for generations.
In 2016, the 24 Solar Terms were inscribed on UNESCO's Representative List of the Intangible Cultural Heritage of Humanity. Why is it so important? Because it embodies the Chinese idea of "unity of heaven and humanity"—humans are not masters of nature, but part of it, and should live in harmony with the seasons. This idea is especially precious in today's concrete world.
Even though we have the Gregorian calendar and weather forecasts now, the 24 solar terms still shape Chinese life. Elders say "around Pure Brightness, plant melons and beans" and "Winter Solstice is as big as New Year." The 24 solar terms are like an invisible thread connecting Chinese life to the rhythm of nature.
The 24 solar terms are the Chinese "philosophy of time". Not a simple calendar, they are the crystallised wisdom of observing nature and arranging life.
Divided by the sun position: 24 terms a year, each about 15 days. Beginning of Spring, Spring Equinox, Beginning of Summer, Summer Solstice, Beginning of Autumn, Autumn Equinox, Beginning of Winter and Winter Solstice are the eight key terms.
The terms first serve farming: plant melons at Qingming, beans at Guyu, harvest wheat at Mangzhong, pick cotton at Bailu. Farmers follow the terms and never miss the season.
They are a life guide too: spring pancakes at Beginning of Spring to "bite spring", dumplings at Winter Solstice to "supplement winter", mung-bean soup at Minor Heat, mutton stew at Heavy Snow.
The terms are the rhythm of wellness: nourish the liver in spring, heart in summer, lungs in autumn, kidneys in winter. Chinese value "eating and sleeping with the seasons" - that is the philosophy.
Each term has its phenology: at Jingzhe spring thunder wakes all life; at Bailu dew appears on morning leaves; at Shuangjiang weather turns cold and dew becomes frost.
Even with modern science, Chinese live by the terms: forecasts say "tomorrow is Winter Solstice"; wellness articles say "guard against autumn dryness at Chushu". The terms are part of Chinese culture.
In 2016 the 24 terms were listed as world intangible heritage - the world recognising ancient Chinese wisdom.
For learners, remember eight key terms: Beginning of Spring, Spring Equinox, Beginning of Summer, Summer Solstice, Beginning of Autumn, Autumn Equinox, Beginning of Winter, Winter Solstice. They divide the year into four seasons, each with its own "philosophy".
