When did the number nine start in the winter of 2017

It seems that after the winter solstice, the count of nine begins.

Counting from the winter solstice,

The number nine begins every year on the day of the early winter solstice in late December of the solar calendar.

Counting nine cold days is counting from the winter solstice every day, counting every nine days as a "nine", and counting until "ninety-nine" eighty-one days, "nine peach blossoms", and the weather will be warm. In fact, it is "ninety-nine and nineteen, ploughing cattle everywhere" - a full 90 days, counting nine days.

Since the day of the winter solstice, China has entered the ninth cold day.

According to astronomical experts, "Ninety-nine" is a more applicable solar term in northern China, especially in the middle and lower reaches of the Yellow River. It starts from the day of the winter solstice, enters the "number nine", commonly known as "hand over nine", after every nine days for a unit, called "nine", after nine "nine", just eighty-one days, that is, "out of nine", then the spring flowers bloom.

In ancient times, especially in the northern regions, the Chinese working people had a poor and scarce condition for keeping warm from the cold compared with their descendants, and the cold winter was also regarded as a threat and punishment, and they had a sense of fear of freezing in the cold and the earth, which directly affected the people's emotions, and even felt that the winter was inexplicably long.

At that time, in order to survive the long winter, the Chinese invented the "number nine" method to pass the time to alleviate the psychological crisis under the threat of winter. At that time, counting nine around the family was also regarded as a leisurely realm.

The number nine begins on the day of the winter solstice solar term each yearIt is a kind of miscellaneous solar terms that are more applicable in northern China, especially in the middle and lower reaches of the Yellow River.

It starts from the day of the winter solstice, enters the number nine, commonly known as the nine, after every nine days for a unit, called nine, after nine nine, just eighty-one days, that is, out of nine, then the spring flowers bloom.

The number nine, also known as the winter ninety-nine, is a kind of Chinese folk solar term. In our country's lunar calendar, there is a saying that ninety-nine, which is used to calculate the season. The method of calculation is calculated from the winter solstice (from the winter solstice is called Jiaojiu, which means the beginning of the cold), every nine days is nineteen, the first nine days are called one, the second nine days are called twenty-nine, and so on, until ninety-nine, that is, until the ninth nine-day, the number of ninety-nine eighty-one days is full.

In traditional Chinese culture, nine is the extreme, which is the largest, most numerous and longest-lasting concept. Nine nines, or eighty-one, is the largest number. The ancient Chinese believed that after the ninety-nine-eighty-first day of the winter solstice, spring must have arrived.

Winter number nine begins at the beginning of the winter solstice in late December of the solar calendar.

Every nine days is counted as a "nine", and it is counted until the eighty-one days of "ninety-nine", and the weather is warm. Nine is the ancient Chinese in order to survive the long winter, the invention of the time of play, the recreation method to alleviate the psychological crisis under the threat of the cold winter, in the Southern and Northern Dynasties, in the traditional Chinese culture, nine is the extreme, is the largest, the most and the most long-lasting concept, nine nines is eighty-one is the "largest" number.

Therefore, the Chinese believe that as long as the winter solstice is 9981 days after the winter solstice, spring will definitely have arrived. The first day of the first month of the Year of the Rabbit, which is our Lunar New Year, is on January 22 of the Gregorian calendar. And the fourth nine of winter is from January 18, 2023 to January 26, 2023.

In other words, the Spring Festival of the Year of the Rabbit falls exactly in the number nine.

Mechanism of generation

Folk proverb: "The summer solstice is three Geng, and the winter solstice is nine." ”

During the winter solstice, the day is the shortest, the angle between the direct sunlight and the ground is the smallest, and the sunshine intensity dispersion per unit area is the smallest, so the ground receives the least solar heat every day, and the deficit of the daily heat budget of the ground has not yet reached the maximum. After the winter solstice, although the daytime is increasing, the growth rate is very slow, from the winter solstice to the "39" period, the average daily growth is only about one minute, and the angle between the direct sun and the ground increases very slowly.

The daily heat budget of the ground is still in deficit, so it continues to lose heat and the ground temperature continues to decline. The total heat budget deficit on the ground only reached its maximum during the "49" period, and because the temperature of the air was mainly affected by the ground temperature, this led to the "three.

The temperature is the lowest during the "9 and 49" periods. In addition, around the time of "March 9", the cold air mass in Siberia also developed to an extremely strong stage, and the frequent invasion of strong cold air is also one of the reasons for the low temperature.

The coldest period of winter generally occurs after the winter solstice. After the beginning of winter, it means that it has entered winter, and it does not mean that it has begun to be cold, so the heat stored on the surface in the second half of the year still has a certain amount of energy, so it is not very cold. There is a folk saying of "October Xiaoyangchun", which refers to the windy, warm and comfortable "Xiaoyangchun" weather that occurs during Mengdong, so in fact, the early winter (Mengdong) is generally not very cold during this period.

But as time goes on, cold air frequently moves south, and the temperature gradually drops. In the winter season, the so-called "cold in the third and fourth nine", it is usually not very cold before the winter solstice, and the real cold winter is after the winter solstice, especially the "three nine days" and "four nine days".

The winter solstice festival time is on December 21 and 23 of the Gregorian calendar every year, and the 81st day of "99" is calculated from the day of the winter solstice, that is, in late March of the Gregorian calendar (around the spring equinox), "nine peach blossoms" and "warm spring in the depths of spring". Due to the vast size of China, the climate varies greatly from place to place, and this is not the case in all parts of the country.

The number nine in winter starts from the day of the winter solstice every year as the nineteenth, that is, from December 21 or 22, and counts every nine days until 2 or 3 days before the sting. The difference from year to year is that the start and end times are not necessarily the same.

On the "39" day, the warmth of the head is very closely related to the thermal balance of the human body. When wearing a hat in winter, special attention should be paid to the hat to protect the ears if the hat can be covered. The elderly should pay more attention to wearing hats when they go out.

In the cold winter, people wear thick clothing, and heat is mainly lost from exposed areas such as the head and hands, so wearing hats and gloves can help to conserve body heat.

In addition, the neck, shoulders, waist, knees and feet are also highly susceptible to cold. The cold winter will also affect these vulnerable parts, causing pain in the cervical spine, lower back, and knee joints. Because your feet are the farthest from your heart and have the poorest blood supply, you're more susceptible to colds.