What does "Twenty-four solar terms" mean?

Twenty-four solar terms are a set of calendars compiled in ancient China based on the changes of the sun's position, which are called solar calendar, or solar calendar for short. Divided into twelve sections and twelve qi. One section is a month, counting by branch. \x0d\ One second from beginning of spring to the next beginning of spring is a year. \x0d\ The first second from beginning of spring to fright is silver moon. \x0d\ beginning of spring: The first festival is called Spring Festival for short. At this time, the sun reaches the longitude of 3 15, which is between February 3 and 5 of the Gregorian calendar. "Spring" means spring; "Rite" comes from the old adage, everything is established in advance, and it is abolished if it is not planned. "beginning of spring" means that spring is about to begin, so we should prepare for the Spring Festival in advance. \x0d\ Rain: the first weather day. At this time, the sun reaches 330 longitude, which is between 18 and 20 in February of the Gregorian calendar every year. "Rain" means that the weather conditions in winter change from dry to rainy, and the number of rains increases gradually, and the rainfall of each rain also increases gradually. \x0d\ The second one from fright to Tomb-Sweeping Day is Uzuki \x0d\ fright: the second festival. At this time, the sun reaches the longitude of 345, which is between March 3 and March 5 of the Gregorian calendar every year. "shock": it means thunder; "Sting" means hiding underground and hibernating in caves. "Sting" means that lightning gradually increases, and hibernating animals and insects are awakened by thunder. \x0d\ Equinox: The second sunny day. At this time, the sun reaches longitude 0, that is, between March 20 and 22 of the Gregorian calendar every year. "Spring" is spring and "minute" is equal. The vernal equinox means that on this day in spring, the length of day and night are equally divided, which indicates that the days with short days and long nights have passed, and the days with long nights will be short in the future. \x0d\ The second festival before the Qingming Festival in Long Summer is Chen Yue \x0d\ Qingming Festival: the third festival. At this time, the sun reaches the longitude 15, which is between April 4th and 6th in Gregorian calendar every year. "Sunny" means sunny weather; "Ming" means that the four fields are bright and clean. During the Qingming Festival, nature is full of vitality and suitable for traveling. When traveling, the ancients often went to the graves of deceased relatives and friends in the suburbs to offer sacrifices, which gradually formed the custom of Tomb-Sweeping Day. \x0d\ Grain Rain: Three weather days. At this time, the sun reaches the longitude of 30, which is between April 19 and April 2 1 day of the Gregorian calendar every year. "Snow breaks in Qingming Festival, frost breaks in Grain Rain", and the arrival of the Grain Rain solar term means that the cold wave weather basically ends, and the temperature rises rapidly, which is extremely beneficial to the growth of cereal crops. The ancients said, "Rain gives birth to hundreds of valleys." "Spring rain is as expensive as oil" refers to the rain at this time. \x0d\ One second before Long Summer arrives in Mangzhong, Mitsuki \x0d\ Long Summer: the fourth festival. At this time, the sun reaches 45 degrees of the yellow meridian, which is between May 4 and 6 of the Gregorian calendar every year. "Summer" means summer; "Rite" comes from the old adage, everything is established in advance, and it is abolished if it is not planned. "Long summer" means that summer is about to begin, so we should make preparations for summer vacation in advance. \x0d\ Xiaoman: The fourth sunny day. At this time, the sun reaches the longitude of 60 degrees, that is, between May 20 and 22 of the Gregorian calendar every year. "Small" is the beginning; "Full" is maturity; At this time, the crops began to bear fruit, but they were not mature, just beginning to mature. \x0d\ The second day before summer is the afternoon moon \x0d\ Mangzi: Section 5. At this time, the sun reaches 75 degrees, between June 5 and 7 of the Gregorian calendar every year. Crops with awns, such as wheat, are ripe. \x0d\ Summer solstice: the fifth natural gas day. At this time, the sun reaches 90 degrees of the yellow meridian, that is, between June 20 and 22 of the Gregorian calendar every year. "Summer" is summer, "Solstice" is coming, and "Summer Solstice" is summer. \x0d\ Xiao Shu arrived in beginning of autumn one second earlier than the moon \x0d\ Xiao Shu: Section 6. At this time, the sun reaches the longitude 105, which is between July 6 and 8 in the Gregorian calendar. Hot in summer means hot. Slight summer heat refers to when the climate begins to get hot. \x0d\ summer heat: the sixth sunny day. At this time, the sun reaches the longitude 120, which is between July 22 and July 24 of the Gregorian calendar every year. The hottest time of the year. \x0d\ One second before the arrival of beginning of autumn in the Millennium is Shen Yue \x0d\ beginning of autumn: the seventh festival. At this time, the sun reaches the longitude 135, which is between August 7th and 9th in Gregorian calendar. "Autumn" means autumn; "Li" comes from the old saying, everything is established in advance, and it will be abolished if it is not applied. "beginning of autumn" means that autumn is about to begin, so we should make preparations for autumn in advance. \x0d\ Summer: the seventh sunny day. At this time, the sun reaches the longitude 150, which is between August 22 and August 24 of the Gregorian calendar every year. "Out" means the end. "Summer" means that the hot weather is over. The festival at this time is like the old Beijing saying "a burst of autumn rain and a burst of cold". \x0d\ The first second before the Millennium reaches the cold dew is the full moon \x0d\ Millennium: Section 8. At this time, the sun reaches the longitude 165, which is between September 7th and 9th in Gregorian calendar. The weather became cold, with dew and white. \x0d\ autumnal equinox: the eighth weather day. At this time, the sun reaches the longitude 180, which is between September 22 and 24 of the Gregorian calendar every year. "Autumn" is autumn, and "minutes" are equal. The autumnal equinox means that the days in autumn are equally divided, which indicates that the days with long days and short nights are over, and then the days with short nights are long. \x0d\ Cold dew arrived in beginning of winter one second before the full moon \x0d\ Cold dew: the ninth festival. At this time, the sun reaches the longitude of 195, that is, between the 7th and 9th of every year in the Gregorian calendar 10/0. Dew is cold and will freeze. \x0d\ First frost: the ninth sunny day. At this time, the sun reaches the longitude of 2 10, which is between the 22nd and 24th of 10 in Gregorian calendar. It's getting colder and colder, and it's frosting. \x0d\ One second before the heavy snow in beginning of winter is Haiyue \x0d\ beginning of winter: Section 10. At this time, the sun reaches the longitude of 225, which is between the 7th and 9th of October in Gregorian calendar165438+1every year. "Winter" means winter; "Rite" comes from the old adage, everything is established in advance, and it is abolished if it is not planned. "beginning of winter" means that winter is about to begin, so we should make preparations for winter in advance. \x0d\ xiaoxue: the tenth sunny day. At this time, the sun reaches 240 degrees of the yellow meridian, which is between 22 and 24 October in Gregorian calendar165438+1every year. It began to snow. \x0d\ One second before heavy snow to slight cold is the second month \x0d\ Heavy snow: 11 knots. At this time, the sun reaches the longitude of 255 degrees, that is, between February 7 and 9 of Gregorian calendar 12 every year. As the snowfall increases, there may be snow on the ground. \x0d\ Solstice in winter: the 1 1 sunny day. At this time, the sun reaches 270 degrees of the yellow meridian, that is, between February 22 and 24 of Gregorian calendar 12 every year. "Winter" is winter, "Solstice" is coming, and "Winter Solstice" is winter. \x0d\ Slight cold is ugly month \x0d\ Slight cold: the twelve solar terms in the first second of beginning of spring in the following year. At this time, the sun reaches the longitude of 285 degrees, which is between the 5th and 7th of October in Gregorian calendar 65438+1every year. The climate began to get cold. \x0d\ Great cold: the12nd sunny day. At this time, the sun reaches 300 degrees of the yellow meridian, which is between 65438+1October 19 and 20 days per year. The coldest three or nine days of the year.