What is the exact time of the Great Cold in 2022?

What is the date of the Great Cold in 2022? The solar term in 2022 is 65438+4: 36 on the Gregorian calendar1October 20th, and the 18th day of the twelfth lunar month in the lunar calendar. The calculation formula of severe cold time is [y * d+c]-L. Where Y= the last two digits of years, D=0.2422, L= leap years, 2 1 century C=20. 12, and 20.84th century C=20.84. For example, the date of severe cold in 2089 = [89× 0.2422+20.12]-[(89-1)/4] = 41-22 =19,65438+ The origin of the Great Cold The Great Cold is the last solar term among the 24 solar terms. It is called "Great Cold" when the sun reaches 300 degrees on the Yellow Meridian around 65438+1October 20th every year. Great cold means extremely cold weather. "Give Time to Learn Weather" quotes "Three Rites and Righteousness": "Great cold is the middle and shaped by slight cold, so it is called the inverse pole of great cold, so it is called great cold." At this time, the cold wave southward is very frequent, which is a cold period in most parts of China in a year. During this period, the wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold phenomenon of ice and snow and freezing in the cold. In ancient China, the Great Cold was divided into three stages: "The first stage was chicken milk; Second, the symptoms of bird disease; Three times, the water is strong. " In other words, chickens can be hatched in the great cold solar terms; At this time, eagles and other falcons are in a state of strong predation ability, hovering around in the air looking for food to supplement their body energy to resist the cold; In the last five days of the year, the ice in the water has frozen to the center of the water, and it is the strongest and thickest. During the severe cold solar term, the atmospheric circulation is relatively stable, and the circulation adjustment period is about 20 days. When this circulation is adjusted, there will often be large-scale rain and snow weather and strong winds to cool down. When the west of 80 degrees east longitude is a long wave ridge and East Asia is a coastal trough, under the influence of northwest wind and constantly supplemented cold air, China will have a sustained low temperature. The severe cold season is characterized by severe cold solar terms, and the atmospheric circulation is relatively stable, and the circulation adjustment period is about 20 days. When this circulation is adjusted, there will often be large-scale rain and snow weather and strong winds to cool down. When the west of 80 degrees east longitude is a long wave ridge and East Asia is a coastal trough, sustained low temperature will occur in China under the influence of northwest wind flow control and constantly supplemented cold air. Like slight cold, great cold is also a solar term indicating the degree of cold weather. Modern meteorological observation records show that in some areas of China, severe cold is not as good as mild cold, but in some years and a few coastal areas, the annual minimum temperature will still appear within the solar terms of severe cold. Therefore, we should continue to do a good job in cold protection of crops, and pay special attention to protecting livestock for the winter. In the severe cold season, the average temperature in most parts of southern China is 6℃ to 8℃, which is nearly 65438 0℃ higher than slight cold. The proverb "slight cold and severe cold, cold into a ball" shows that the severe cold solar term is also a cold period of the year. Slight cold and severe cold are the periods with the least rainfall in a year. Great cold custom: 1, food with rich tail: According to the custom of our country, especially in rural areas, people are busy saying goodbye to the old and bringing in the new, pickling new year's dishes and preparing new year's goods every big cold festival. During the Great Cold to beginning of spring, there were many important folk customs and festivals. For example, sumptuous food, cooking stoves and New Year's Eve, and sometimes even the Spring Festival, the biggest festival in China, is in this solar term. The great cold solar term is full of joy and joyful atmosphere, and it is a cheerful and relaxed solar term. Tail teeth originated from the custom of worshipping the earth god as "teeth" 2. Drink chicken soup: In the cold winter, Nanjing people have more stews and soups in their daily diet. The severe cold has reached the ninth month of the lunar calendar, and the traditional eating custom of "one chicken" is still highly respected by many citizens' families. Nanjing people choose old hens, or stew them alone, or add ginseng, medlar, black fungus and so on. Drinking chicken soup in cold winter is really a pleasure. 3. Eat glutinous rice: In the vast areas of southern China, there is a custom of eating glutinous rice in the cold. Although this custom sounds simple, it contains the life experience accumulated by predecessors. Because it is particularly cold in the severe cold weather, glutinous rice is a kind of food with high calorie and has a good cold protection effect. There are many ways to make glutinous rice, and glutinous rice has the effect of invigorating the middle energizer, so it is most suitable to eat glutinous rice in cold season. 4, offering sacrifices to the stove to pray for the blessing of the gods: offering sacrifices to the stove in the off-year is a common custom in the north and south of the country. In the past, on this day, people would worship the statues of the kitchen god and the grandmother of the kitchen god on the wall near the kitchen stove.