The start and end time of the summer solstice in 2022 What is "Summer Solstice Three Geng Enters the Dog Day"
The summer solstice is a very important dividing line in the year. Let us take a closer look at when the summer solstice in 2022 begins and ends. What is "Summer Solstice San Geng Enters the Dog Days"? May is in the beauty of midsummer. Although the sun is hot, good things will still arrive as scheduled. If you want to know the content of every day in May 2022, please visit the May special topic of Shuimo.com.When does the summer solstice start and end in 2022?2022 Summer Solstice starts at 17:13:40 on June 21, 2022The summer solstice is the day in the year when the sun is most northerly, the extreme point of the sun's northward journey, the day with the longest daylight hours in the northern hemisphere, and the day when the daytime time exceeds the night time the most. However, the length of daylight in different places tends to decrease from north to south. This is the effect of longer days and shorter nights caused by the tilt of the Earth's axis of rotation, which is more obvious the closer to poles. On the summer solstice, except for the South Pole and the polar night areas within the Antarctic Circle, the sunrise at all locations on the earth starts in the northeast and sets in the northwest. 2022 Summer Solstice End Time: July 7, 2022 10:37:49 Astronomically speaking, the summer solstice marks the beginning of summer in the Northern Hemisphere. After the summer solstice, although the sun's direct point begins to move gradually southward from the Tropic of Cancer, the daytime in the Northern Hemisphere begins to gradually shorten, and the altitude of the sun at noon also begins to decrease day by day for the Tropic of Cancer and the areas to its north, the temperature will continue to rise for a period of time in the future because the heat radiated by the sun to the ground is still greater than the heat dissipated by the ground to the air. Therefore, there is a saying that "the summer solstice will not be hot unless it is too late." Although the summer solstice has the longest daylight hours, it is not the hottest time of the year. What is "Summer Solstice Three Geng Enters the Dog Days"The so-called "Three Gengs" refers to the period from the summer solstice onwards, when the dog days begin to fall on the third Geng day! As we all know, the 24 solar terms are based on the Ganzhi calendar. In our country, there are ten heavenly stems and twelve earthly branches. The ten heavenly stems are Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren and Gui, and the summer solstice is on the Yiwei day of the Renwu month in the lunar calendar. The first Geng day after the summer solstice occurs on June 26, which is the Gengzi day of the Renwu month; the second Geng day after the summer solstice occurs on July 6, which is the Gengxu day of the Kuimo month; and after the summer solstice, the third Geng day, which is the official beginning of the dog days, occurs on July 16, which is the Gengshen day of the Kuimo month!Therefore, the dog days of summer in 2022 will start on July 16, 2022, and the first and last dog days of the "three dog days" are generally 10 days, and the length of the middle dog days varies, sometimes lasting 10 days, and more often lasting 20 days; the specific duration can be seen according to the calendar. If there are 4 Geng days from the summer solstice to the beginning of autumn, the middle dog days will be 10 days, and if there are five Geng days, it will be 20 days! It is understood that the Beginning of Autumn this year falls on August 7, and the Geng days from the Summer Solstice to the Beginning of Autumn are June 26, July 6, July 16, July 26, and August 5, respectively. Geng days appear 5 times, so the duration of the middle dog days in 2020 is 20 days! It can be seen from this that the starting and ending dates of the dog days in 2022 are July 16th to 25th as the "first dog days", a total of 10 days; July 26th to August 14th as the "middle dog days", a total of 20 days; August 15th to August 24th as the "last dog days", a total of 10 days; and August 25th is the official end of the dog days! The dog days are the most humid and hottest time of the year. Although the dog days officially end on August 25, the temperature will not cool down all of a sudden. In rural areas, old people often say "plus one more dog day, there is also the autumn heat." At this time, although the sun gradually returns to the south, the temperature in the north will still be hot due to the control of the subtropical high. There is a saying that "The beginning of autumn is not autumn because the weather is cool after the White Dew". It is estimated that the White Dew solar term will be the time for it to really cool down! |
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