Twenty-four solar terms
The 24 solar terms are specific festivals in the Chinese calendar that indicate changes in natural rhythms and establish the "十二月建".One year is divided into four seasons, three months each in spring, summer, autumn and winter, and two solar terms per month, each of which has its own unique meaning.The 24 solar terms accurately reflect the changes in natural rhythms and play an extremely important role in people's daily lives.It is not only a seasonal system that guides agricultural production, but also a folklore system that contains rich folk events. The 24 solar terms contain a long cultural connotation and historical accumulation, and are an important part of the long history and culture of the Chinese nation.In the international meteorological community, the 24 solar terms are known as "China's fifth great invention". On November 30, 2016, the 24 solar terms were officially inscribed on UNESCO's Representative List of the Intangible Cultural Heritage of Humanity.
- 节气来源Source of solar terms
China's astrological culture has a long and profound history, and the ancients began to explore the mysteries of the universe very early, and thus deduced a complete and profound stargazing culture.The 24 solar terms were originally formulated according to the rotation direction of the Big Dipper, which rotates in cycles, and this is closely related to the change of seasons.During the reign of Emperor Wudi of the Western Han Dynasty, the "twenty-four solar terms" were included in the Taichu Calendar as a supplement to the calendar to guide agricultural affairs.
- 交替时间及含义Alternating time and meaning
February 3-5 in the Gregorian calendar. The Spring begins is the first solar term of spring, which means that a new cycle has begun, which means that the winter in which all things are closed has passed, and the season of growth has begun, and all things have gradually recovered.
February 18-20 in the Gregorian calendar. The rains marks the beginning of rainfall and the gradual increase in rainfall. Entering the rains, the north of China is not yet cold, some places are still snowing; Most of the south is full of spring, an early spring scene.
March 05-07 in the Gregorian calendar. The means is weather warms up, and the spring thunder begins to sound, waking up insects that hibernate underground.
March 20-22 in the Gregorian calendar. The vernal equinox is of great astronomical significance, the northern and southern hemispheres equinoxes day and night, since this day the direct position of the sun continues to move from the equator to the northern hemisphere, and the day begins to grow longer than night throughout the northern hemisphere. The spring equinox is also characterized by a relatively obvious climate, when the weather is warm, rainy and sunny.
清明Clear and bright：公历4月04-06日交节。清明是反映自然界物候变化的节气，这个时节阳光明媚、草木萌动、气清景明、万物皆显，自然界呈现生机勃勃的景象。时至清明，在我国南方地区已气候清爽温暖、大地呈现春和景明之象；在北方地区也开始断雪，渐渐进入阳光明媚的春天。
April 04-06 in the Gregorian calendar. Is a solar term that reflects the phenological changes in nature, this season is sunny, grass and trees are budding, the air is clear and bright, everything is visible, and the natural world presents a vibrant scene. By the time of Qingming, the climate in the southern region of China has been refreshing and warm, and the earth has shown the image of spring and prosperity; In the north, snow also began to break and gradually enter a sunny spring.
April 19-21 in the Gregorian calendar. Is the last solar term of spring, when precipitation increases significantly, and the seedlings in the field and new crops are planted, and the most need for rain to moisturize. With sufficient and timely rainfall, cereal crops can thrive.
May 05-07 in the Gregorian calendar. It is the 7th solar term among the 24 solar terms, the first solar term of summer, indicating the official beginning of the midsummer season. It marks the gradual warming, the coming of the hot summer, and the increase in thunderstorms, which is an important solar term for the growth of crops in the peak season.
May 20-22 in the Gregorian calendar. The weather gradually changed from warm to hot, and precipitation will gradually increase.
芒种Grain in ear：公历6月05－07日交节。芒种时节气温显著升高，雨量充沛，是适宜晚稻等谷类作物耕播的节令，它是古代农耕文化对于节令的反映。
June 05-07 in the Gregorian calendar. The temperature rises significantly and the rainfall is abundant, which is suitable for the cultivation and sowing of cereal crops such as late rice, is a reflection of the ancient farming culture.
June 21-22 in the Gregorian calendar. On this day, the sun hits the northernmost point of the year, almost directly into the Tropic of Cancer, when the longest hours of daylight are in the Northern Hemisphere.
July 06-08 in the Gregorian calendar. It means that the height of summer has officially begun, and the weather has begun to enter the sky and the weather is changeable. Most of China enters the season of the most thunderstorms. With hot weather, frequent thunderstorms and abundant rainfall, crops are in a thriving phase.
July 22-24 in the Gregorian calendar. Is the hottest solar term of the year, and the climate characteristics of it: high temperature and extreme heat, frequent thunderstorms, typhoons. Affected by the summer wind, precipitation gradually decreases from the southeast coast to the northwest interior, and the annual precipitation is concentrated in summer.
August 07-09 in the Gregorian calendar. It means that autumn has entered since then, which means that precipitation and humidity are equal to the turning point of the year, and tend to decline or decrease; In nature, everything begins to grow from luxuriant to mature.
处暑Stopping the heat：公历8月22－24日交节。意味着酷热难熬的天气到了尾声，这期间天气虽仍热，但已是呈下降趋势,提醒人们暑气渐渐消退，天气由炎热向凉爽过渡，要注意预防。
August 22-24 in the Gregorian calendar. It means that the hot and unbearable weather has come to an end, and although the weather is still hot during this period, it has shown a downward trend, reminding people that the heat is gradually subsiding, and the weather is transitioning from hot to cool, and attention should be paid to prevention.
September 07-09 in the Gregorian calendar. As the weather gradually cools, the sun is still hot during the day, but as soon as the sun sets, the temperature drops quickly, and the temperature difference between day and night widens.
September 22-24 in the Gregorian calendar. By the autumnal equinox, the heat has subsided and the weather has cooled.
October 08-09 in the Gregorian calendar.Day and night temperature difference is large, and autumn dryness is obvious, most of China under the control of cold and high pressure, the rainy season is over.
October 23-24 in the Gregorian calendar. It reflects the climate characteristics of sudden drop in temperature, large variation of temperature difference between day and night, and obvious autumn dryness.
November 7-8 in the Gregorian calendar. It is a seasonal solar term, which means that winter has entered since then, means that everything has entered a state of rest and collection.
November 22-23 in the Gregorian calendar. The arrival of light snow means that the weather will become colder and the precipitation will increase.
December 6-8 in the Gregorian calendar. It is a solar term that reflects the trend of temperature and precipitation, and it is a reflection of the season in ancient farming culture.
December 21-23 in the Gregorian calendar. It is a solar term reflecting the direct movement of sunlight, the day of the winter solstice the sun goes south to the extreme, the sun directly hits the Tropic of Capricorn, is the shortest day time and the longest night time in the northern hemisphere of the year, since this day the direct sun point to the north back, the height of the sun in the northern hemisphere gradually rises, and the day increases day by day.
January 5-7 in the Gregorian calendar. The direct point of the sun is still in the southern hemisphere, the heat in the northern hemisphere is still in a state of loss, and the heat absorbed during the day is still less than the heat released at night, so the temperature in the northern hemisphere continues to decrease.
January 20-21 in the Gregorian calendar. It is a solar term that indicates the degree of cold weather, and the great cold means that the weather is extremely cold.
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