In ancient times, the beginning of spring was accurate to the hour, how to check what time the begin

The beginning of spring occurs between February 3 and 5, when the sun is at 315° ecliptic longitude, signaling the beginning of spring. The period from this day until the beginning of summer is called spring. In China, northerners eat spring cakes on the day of the beginning of spring.

The beginning of spring also represents the beginning of a new year.

Phenological. The east wind thaws: frozen in winter, dissolved in the spring breeze, not called spring but said east, "Lü's Spring and Autumn" said: "The East belongs to wood." "Wood, fire mother, fire temperature, so thaw.

Stinging insects start vibrating: sting, hiding also; vibrate, move also; The hidden insects are all moved because of the qi. Bao said: "I didn't move, and I left in surprise in February." ”

It was originally a fish on the ice, but the "Yuan Historical Chronicles" was changed to a fish on the ice. : 陟, 升也; When the fish is cold, the bottom of the water is warm, and the yang qi of the first month is reached, and the upstream is close to the ice, so it is said to be negative.

Jet Propulsion Laboratory online almanac system. English).

As early as the Zhou Dynasty and the Spring and Autumn Period, ancient astronomers used the "Tugui" solar shadow measurement method to determine the spring equinox, summer solstice, autumn equinox, and winter solstice, and according to the change of the position of the sun on the ecliptic in a year and the evolution order of the ground climate caused by it, the whole year was divided into 24 equal parts, and each equal part was named, which is the origin of the 24 solar terms.

The beginning of spring is when the sun reaches 315 degrees of ecliptic longitude.

The 24 solar terms in China's lunar calendar are divided according to the position of the sun in the ecliptic, when the sun reaches the ecliptic longitude of 315 °, this moment is the beginning of spring, when it reaches this scale accurately, it also represents the official arrival of the beginning of spring, so the time will be very accurate.

The beginning of spring is a point in time, but after the beginning of spring is a period of time, China's lunar calendar has divided the fifteen days of the beginning of spring into "three waits", each candidate is five days, there is such a name: "one wait for the east wind to thaw, two wait for the stinging insects to start vibrating, three wait for the fish to bear the ice", which means that the east wind warms after the beginning of spring, the ice and snow begin to thaw, five days after the hibernation of the insects slowly wake up in the hole, and then five days, the river water that has been thawed is all ice floes, and the fish also begin to move with the ice floes.

However, this is not the case in the whole country, and it is more in line with some areas south of the Yellow River to north of the Yangtze River. However, our country is located in the northern hemisphere, after the arrival of the beginning of spring, the national climate will be warmer, and the sunlight will become more and more intense, so the beginning of spring represents that winter has gone and spring has arrived.

Spring. Lichun, commonly known as Dachun, marks the beginning of spring of the year, and it is the first of the 24 solar terms. "Li" means "beginning", and the beginning of spring is the beginning of spring, and on February 4 or 5 every year, when the sun reaches 315 degrees of yellow longitude, it is "beginning of spring".

Once the beginning of spring is over, it means that winter is over and spring has begun. The beginning of spring is astronomy, and in nature, in people's minds, spring is warm, birds and flowers; Spring is growth, farmers plough and sow seeds. Since the Qin Dynasty, China has used the beginning of spring as the beginning of spring.

The beginning of spring is a point in time and can also be a period of time. Chinese tradition divides the fifteen days of the beginning of spring into three phases: "one waits for the east wind to thaw, the second waits for the stinging insects to start vibrating, and the third waits for the fish to bear the ice", which means that the east wind warms up and the earth begins to thaw.

Five days after the beginning of spring, the insects slowly wake up in the hole, and after another five days, the ice in the river begins to melt, and the fish begin to swim to the surface of the water.

The "beginning of spring" is calculated based on the ecliptic, and when the bucket handle points to Yin, it is the beginning of the spring point, that is, when the sun reaches the ecliptic longitude of 315°.

The orbit of the earth around the sun was named "ecliptic" by the ancients, also known as "sun", and the ecliptic was divided into 24 parts in equal proportions, separated by 15 degrees, and 24 solar terms were formed. The 24 solar terms are actually 24 seasonal points, and there are 2 solar terms per month. Each solar term has three phases, each of which lasts for five days.

When the sun reaches the ecliptic longitude of 315°, it is the beginning of the spring festival.

The beginning of spring is a point in time and can also be a period of time. Chinese tradition divides the fifteen days of the beginning of spring into three phases: "one waits for the east wind to thaw, the second waits for the stinging insects to start vibrating, and the third waits for the fish to bear the ice", which means that the east wind warms up and the earth begins to thaw.

At the beginning of the spring solar term, the westerly jet of the southern branch of East Asia has begun to weaken, and the midwinter climate is coming to an end. However, the intensity and location of the westerly jet in the northern branch have basically not changed, the Mongolian cold high pressure and the Aleutian low pressure are still relatively strong, and the windy cooling is still the prevailing weather.

Traditionally, on February 4 or 5 of the Gregorian calendar, the sun reaches 315 degrees of ecliptic longitude. The beginning of spring is the first of the 24 solar terms.

Our country takes the beginning of spring as the beginning of spring. In the "Seventy-two Candidate Explanations of the Lunar Order", it is annotated like this: "The first lunar festival, the beginning, and the beginning of the establishment are also ......Summer, autumn and winter are the same.

It can be seen that standing is the meaning of beginning. In the 24 solar terms, there are four standing and one saying, that is, they refer to the beginning of the four seasons of spring, summer, autumn and winter: the beginning of spring, the beginning of summer, the beginning of autumn, and the beginning of winter.

Its agricultural significance is "spring planting, summer growth, autumn harvest, and winter storage", which encompasses the whole process of the relationship between agricultural production and climate in the middle and lower reaches of the Yellow River. Although the "Sili" can reflect the climatic characteristics of the four distinct seasons in the middle and lower reaches of the Yellow River, due to the vast territory of China and the different geographical conditions, the climate varies greatly from place to place, and the length of the four seasons is different, so the specific climatic significance of "Li" is not significant. It cannot be applied to all parts of the country.

The beginning of spring in 2000 is 2000-02-04 20:40:24 Lunar calendar: December (small) twenty-nine.

The formula for calculating the exact time of the beginning of spring: [y*d+c]-l. Formula interpretation: multiply and add the last 2 digits of the number of years to take the integer minus the number of leap omissions. 21st Century C Value =, 22nd Century Backflush C Value =. Wide dust.

The beginning of spring is the first of the 24 solar terms, and it is classified as the first solar term in the official almanac of the Ming and Qing dynasties; The arrival time is on February 3-5 of the Gregorian calendar (around the first day of the first lunar month), when the sun reaches the ecliptic longitude of 315°. Lichun is one of the important traditional festivals of the Han people. "Li" means "beginning", and since the Qin Dynasty, China has used the beginning of spring as the beginning of spring.

The beginning of spring is astronomy, spring is warm, birds and flowers; Spring is growth, ploughing and sowing. The period from the day of the beginning of spring to the beginning of summer is called spring.

The beginning of spring is astronomically divided. After the beginning of spring, the temperature rises, and the busy season of spring ploughing begins in most parts of the country. The beginning of spring is a point in time and can also be a period of time.

1.The beginning of spring is one of the important traditional festivals of Chinese folk. "Li" means "beginning", and since the Qin Dynasty, China has been using the beginning of spring as the beginning of the Mengchun season.

The so-called "plan of the year lies in spring", infiltrating and smiling spring is warm, birds and flowers; Spring is the growth of bushes, ploughing and sowing.

2.In nature, in people's minds, spring means the wind and the sun are warm, and the birds are singing and the flowers are fragrant; Spring also means that everything grows, and the farmer sows the seeds. The ancient book "Qunfang Spectrum" explains Lichun as:

Stand, start to build also. Fiber attack spring began to establish also. "During the beginning of spring, the temperature, sunshine, and rainfall begin to rise and increase.

But all this is just a prelude to spring for most parts of the country.