Why are there only 12 months in a year? Twenty four knots?

Summary. The 24 solar terms are: winter solstice, small cold, big cold, beginning of spring, rain, stunning, spring equinox, Qingming, valley rain, beginning of summer, small man, mangzhong, summer solstice, small heat, great heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost fall, beginning of winter, light snow, heavy snow.

The 24 solar terms are: winter solstice, small cold, big cold, beginning of spring, rain, stunning, spring equinox, Qingming, eggplant and valley rain, beginning of summer, small royal stool man, mangzhong, summer solstice, small heat, big heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost fall, standing trembling winter, light snow, heavy snow.

There are a total of 24 solar terms throughout the year, divided into 4 seasons, and each season has 6 solar terms. For example, there are six solar terms in spring, which are the beginning of spring, rain, stunning, equinox, Qingming, and valley rain.

The summer is: the summer is full of mangs and the summer is connected to the summer. That is:

Lixia, Xiaoman, Mango, Summer Solstice, Xiaoxia, Da Summer. Autumn is: autumn dew and autumn frost.

That is: the beginning of autumn, the summer heat, white dew, autumn equinox, cold dew, frost. In winter, it is:

Winter snow, snow, winter small and cold. That is: the beginning of winter, light snow, heavy snow, winter solstice, small cold, big cold.

The 24 solar terms point out that climate change, the amount of rain and the length of frost period are the results of long-term observation, exploration and summary of astronomy, meteorology and phenology by the working people of China, which have a very important and far-reaching impact on agricultural cultivation, and are generally more applicable to agricultural activities in the Yellow River Basin.

The 24 solar terms are an important part of China's traditional calendar. For thousands of years, the setting of solar terms in the calendar has played an important role in the development of agriculture and animal husbandry in China. Some folk festivals and folk activities have also evolved from the solar terms, reflecting China's long history and excellent traditional culture.

The traditional Chinese calendar – the lunar calendar, which is still in use – is a lunisolar calendar. The basic rule for compiling the lunar calendar is that the synodic month is used as the basis for the length of the calendar month.

The average length of a synodic month is days. The length of the calendar month is 29 or 30 days, even if the average length of the calendar month is close to that of the synodic month. 1 The moon phases of the Synodic Moon go through the New Moon, the Upper Moth Mei Moon (also known as the New Moon), the First Quarter, the Waxing Gibbous Moon, the Hope (also known as the Full Moon), the Losing Gibbous Moon, the Second Quarter, and the Lower Moth Mei Moon (also known as the waning Moon) to the next New Moon.

Each date in the calendar month has the meaning of the moon phase, with the first quarter being the first day of the new month, the first quarter being the seventh or eighth day of the first month, the hope being the fifteenth or sixteenth, and the second quarter being the first one.

Two. Ten. 2. 23, until the day before the next new day is the 29th or 30th day of the end of the month (also known as obscure). Take 12 calendar months as 1 year. In this way, there are usually only 353 or 354 days in 1 year.

Beginning of spring, rain, stunning, vernal equinox, Qingming, valley rain, beginning of summer, small man, miscanthus seed, summer solstice, small heat, great heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost, beginning of winter, light snow, heavy snow, winter solstice, small cold, big cold.

The traditional Chinese summer calendar (lunar calendar) is a kind of "luni-yang calendar", and at the same time according to the operation of the sun and the month, "yin" is determined by the synodic month, and "yang" is determined by the earth from the winter solstice around the sun once as the basis to determine the year.

The 24 solar terms are specific seasons in the calendar that indicate changes in the natural rhythm and establish the "December Month". At the age of one year, there are three months each in spring, summer, autumn and winter, and there are two solar terms per month, each of which has its own unique meaning. The twenty-four solar terms accurately reflect the changes in the natural rhythm and play an extremely important role in people's daily life.

It is not only a seasonal system that guides agricultural production, but also a folk system that contains a wealth of folk customs. The twenty-four 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.

The "24 solar terms" is the product of the ancient agricultural civilization, which is a knowledge system formed by the ancient ancestors who conformed to the agricultural time, observed the movement of celestial bodies, and recognized the changes of season, climate, and phenology in a year. The twenty-four solar terms were originally formulated according to the rotation of the stars, the seven stars of the Big Dipper rotate in cycles, and the handle rotates clockwise for a cycle, which is called one "year" (seti).

The current "24 solar terms" are formulated according to the position of the sun on the return ecliptic, that is, the annual trajectory of the sun is divided into 24 equal parts, every 15 degrees is 1 equal part, and every 1 equal part is a solar term, which begins at the beginning of spring and ends with the great cold.

Through historical development, the lunar calendar absorbed the solar terms components of the Ganzhi calendar as a supplement to the calendar, and adjusted it to conform to the return year through the "intercalation method" to form a lunisolar calendar, and the "24 solar terms" became an important part of the lunar calendar. In the international meteorological community, the 24 solar terms are known as "China's fifth greatest invention".

In 2016, UNESCO inscribed the "24 Solar Terms: The Time Knowledge System and Its Practice Formed by Chinese through Observing the Annual Movement of the Sun" on the Representative List of the Intangible Cultural Heritage of Humanity. The extended list of intangible cultural heritage items includes: Jiuhua Lichun Festival, Banchun Quannong, Shiqian Shuochun, Sanmen Winter Festival, Zhuang Frost Festival, Miao Autumn, and Anren Branch.

Hello, the 24 solar terms are: the beginning of spring, rain, stunning, equinox, Qingming, Guyu, Lixia, Xiaoman, mangzhong, summer.

Solstice, small heat, great heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost, beginning of winter, light snow, heavy snow, winter solstice, small.

Cold, cold. In the solar terms, the beginning of spring, the stunning, the Qingming, the beginning of summer, the miscanthus seed, the small summer, the beginning of the autumn, the white dew, the cold dew, the beginning of the winter, and the large.

Snow and Xiaohan are respectively the month of Yin, Maoyue, Chenyue, Siyue, Wuyue, Weiyue, Shenyue, Youyue, Xuyue, and Hai.

The beginning of the month, the sub-month, and the ugly month.

The names of the 24 solar terms are: Beginning of Spring, Rain, Sting, Spring Equinox, Qingming, Guyu, Lixia, Xiaoman, Mangzhong, Summer Solstice, Small Heat, Great Heat, Beginning of Autumn, Beginning of Summer, White Dew, Autumn Equinox, Cold Dew, Frost Fall, Beginning of Winter, Light Snow, Heavy Snow, Winter Solstice, Small Cold, Great Cold.

From the naming of the 24 solar terms, it can be seen that the division of solar terms fully takes into account the changes in natural phenomena such as seasons, climate, and phenology. Among them, the beginning of spring, the beginning of summer, the beginning of autumn, the beginning of winter, the spring equinox, the autumn equinox, the summer solstice, and the winter solstice are used to reflect the seasons, and the year is divided into four seasons: spring, summer, autumn, and winter.

The vernal equinox, autumnal equinox, summer solstice, and winter solstice are astronomical and reflect the turning point in the change of the sun's altitude. The beginning of spring, the beginning of summer, the beginning of autumn, and the beginning of winter reflect the beginning of the four seasons. Due to the vast territory of China, with a very obvious monsoon and continental climate, the weather and climate vary greatly from place to place, so the seasonal changes in different regions are also very different.

The 24 solar terms are the beginning of spring, rain, stunning, vernal equinox, Qingming, Guyu, Lixia, Xiaoman, mangzhong, summer solstice, small heat, great heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost, beginning of winter, light snow, heavy snow, winter solstice, small cold, and great cold, which are the twenty-four sections that the ancients divided the whole year into according to the position of the sun on the ecliptic (ecliptic longitude) and the order of the evolution of the ground climate, each section is about half a month.

In order to make it easier to remember, there is a "24 solar terms song" in traditional Chinese culture. The whole song has only four sentences, which is short and concise, and children with primary school education can recite it casually

Twenty-four solar terms.

The spring rain shocks the spring and the valley sky, and the summer is full of mangs and the summer is connected;

Autumn dew, autumn frost, winter snow and winter cold.

The date of the two festivals per month is set, with a maximum difference of one or two days, six and one in the first half of the year, and eight and three in the second half of the year.

Twenty-four solar terms and seven words poem.

The earth revolves around the sun, and it takes a year to complete one circle.

The year is divided into twelve months, and twenty-four festivals are closely connected.

According to the Gregorian calendar, the two gases do not change every month.

The first half of the year is six and one, and the second half of the year is eight and three.

These are the festivals, and there is no more than a day or two.

The twenty-four verses are in order, and the following mantras are memorized:

In January, the small cold is followed by the big cold, and in February, the spring rain is connected;

The spring equinox is in March, and the rain in Qingming Valley is in April;

Lixia and Xiaoman in May, and the summer solstice in June;

July heat and small heat, the beginning of autumn and summer in August;

The white dew in September is followed by the autumn equinox, and the cold dew and frost fall in October;

The beginning of winter light snow in November, heavy snow winter solstice to welcome the new year.

Seize the season to busy production, planting and harvesting in time to ensure a bumper year.

Spring rain, sting, spring equinox, Qingming, valley rain, summer is busy and summer is connected, autumn dew and autumn frost fall, winter snow and winter small and big cold.

If you ask a question here, you might as well go directly to the encyclopedia and search for it.

The spring rain shocks the spring and the valley sky, the summer is full of mangs and the summer and summer are connected, the autumn dew and autumn frost fall, the winter snow and snow and the winter are small and cold.

In order, it is the beginning of spring, rain, stunning, vernal equinox, Qingming, Guyu, Lixia, Xiaoman, mangzhong, summer solstice, Xiaoxiao, Daxiao, Liqiu, Chuxia, white dew, autumn equinox, cold dew, frost, beginning of winter, light snow, heavy snow, winter solstice, big cold, and small cold.

Lichun: Lichun means the beginning, and Lichun is the beginning of spring.

Rain: Rainfall begins and gradually increases.

Sting: Stinging means to hide. Stinging refers to the sudden movement of spring thunder, which wakes up animals that are hibernating in the soil.

Vernal equinox: Equinox means equinox. The vernal equinox indicates the equinox of day and night.

Qingming: The weather is sunny and the vegetation is luxuriant.

Gu Yu: Rain gives birth to a hundred grains. Rainfall is abundant and timely, and cereal crops can thrive.

Beginning of summer: The beginning of summer.

Xiaoman: The grains of summer crops such as wheat are beginning to plump.

Miscanthus seeds: Wheat and other miscanthus crops are ripe.

Summer solstice: The hot summer is coming.

Xiaoxia: 夏 means hot. A small summer is when the climate starts to get hot.

Daido: The hottest time of the year.

Beginning of Autumn: The beginning of autumn.

Heat: It means to terminate and hide. It means the end of a hot summer day.

White dew: The weather is cooler, and the dew is condensed and white.

Autumnal equinox: Equinox of day and night.

Cold dew: The dew is cold and will freeze.

Frost falls: The weather is getting colder and frost is starting to appear.

Beginning of winter: The beginning of winter.

Light snow: It starts to snow.

Heavy snowfall: Snowfall increases and the ground may be covered with snow.

Winter solstice: The cold winter is coming.

Xiaohan: The climate is starting to get cold.

Big Chill: The coldest time of the year.

Beginning of summer, beginning of winter, big cold, small cold, beginning of spring, spring equinox, stunning, heat, heat, heat, summer, autumn, autumn, winter solstice, miscanthus, summer solstice, Xiaoman, Qingming, valley rain, rain, cold dew, heavy snow, light snow, white dew.

For the convenience of memorization, there is a song of twenty-four solar terms:

The spring rain shocks the spring and the valley sky, and the summer is full of mangs and the summer is connected;

Autumn dew, autumn frost, winter snow and snow and winter small and big cold.

There are two sessions per month that do not change, with a maximum difference of one or two days.

In the first half of the year, it was sixty-twenty-one, and in the second half of the year, it was eighty-twenty-three.

Each word stands for:

Spring: Beginning of Spring, Rain: Rain, Surprise: Surprise, Spring: Spring Equinox, Qing: Qingming, Valley: Valley Rain.

Summer: Beginning of Summer, Mang: Xiaoman, Mang: Mang, Summer: Summer Solstice, Summer Connection: Small Summer and Great Heat.

Autumn: Beginning of Autumn, Place: Heat, Dew: White Dew, Autumn: Autumn Equinox, Cold: Cold Dew; Fall, frost fall.

Winter: Beginning of winter, Snow: Light Snow, Snow: Heavy Snow, Winter: Winter Solstice, Small Big Cold: Small Cold, Big Cold.