Is the summer solstice a fixed date every year? Will there be a holiday for the summer solstice in 2022?
"Summer Solstice" is the earliest determined solar term among the 24 solar terms. In the 7th century BC, our ancestors used the method of measuring the sun's shadow with a gnomon to determine the time of "Summer Solstice". So, is the Summer Solstice a fixed day every year? Will there be a holiday during the summer solstice in 2022? Shui Mo Network has prepared relevant content for every day of the fifth lunar month in 2022. If you want to know more details, please follow Shui Mo Network!Is the summer solstice a fixed date every year?The time of the summer solstice is not fixed every year.The summer solstice is one of the 24 solar terms. It begins around June 21st every year (20th to 22nd), when the sun reaches 90° of the ecliptic longitude. It is the earliest solar term to be determined. In the 7th century BC, the ancients used a gnomon to measure the sun's shadow. The shadow was the shortest on the summer solstice, so this day was called the "summer solstice." However, it should be noted that the summer solstice has fallen on June 21st in the past ten years, so there is no need to calculate the time specifically. Is there a holiday for the summer solstice in 2022?There will be no holiday during the summer solstice in 2022.The "Summer Solstice Festival" was also called the "Summer Festival" in ancient times. It is not only an important solar term, but also an important traditional festival among the Chinese people. Before the Qing Dynasty, the whole country had a day off on the summer solstice, and in the Song Dynasty, all officials would have three days off on the summer solstice, but it is no longer a legal holiday. Is the summer solstice the hottest day of the year?No, the summer solstice is not the hottest time of the year. The hottest time should be during the dog days of summer.The main reason is the effect of the atmosphere. The atmosphere has a strong thermal insulation effect. If there is no atmosphere, after the summer solstice, the daylight hours in the Northern Hemisphere will shorten day by day, the heat received will become less and less, and the heat lost will become more and more, and the temperature will drop day by day. However, due to the thermal insulation effect of the atmosphere, the total sunshine time in a day is greater than the darkness time, that is, the total time of receiving heat is greater than the time of losing heat. Therefore, under the thermal insulation effect of the atmosphere, the temperature will continue to rise. |
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