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When is the lunar light snow solar term?
Xiaoxue solar term is one of the 24 solar terms, but careful friends have long discovered that the lunar calendar time of Xiaoxue solar term is different every year. Although China had the embryonic form of twenty-four solar terms as early as the Spring and Autumn Period and the Warring States Period, there was only the lunar calendar method in China at that time, and the annual light snow solar terms were not calculated according to the lunar calendar.
First of all, we should know that the 24 solar terms are based on the direct angle of the sun. As early as the Spring and Autumn Period and the Warring States Period, China was able to determine the length of the midday sun shadow by using a soil gauge (erecting a pole on the plane), thus determining four solar terms: winter solstice, summer solstice, vernal equinox and autumn equinox. In a year, the shortest day of the shadow of returning to the earth at noon is the summer solstice, the longest day is the winter solstice, and the shadow with moderate length is the vernal equinox or autumnal equinox. This is exactly the same as the current Gregorian calendar, so it is more appropriate for us to record the 24 solar terms with the Gregorian calendar now.
The lunar calendar, which has a light snow solar term every year, is possible from October to November of the lunar calendar.
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When is the lunar light snow solar term?
(20 15-2034) Light Snow Time122 October 2015: 65438+23: 25:15,15 October 2065438+/kloc.
20 16 light snow time:1October 22nd15: 22: 20, lunar calendar 2065438+1October 23rd.
20 17 light snow time:165438+1October 22 1 1: 04: 34, the fifth day of October (July) in the 20th lunar month.
Light snow time 2065438+08:165438+1October 22nd17: 01:24 2065438+08.
Light snow time 2065438+09:165438+22: 58: 48 2065438+lunar October 26th.
Light snow time in 2020:1October 22nd14: 39: 38, the seventh day of October in the lunar calendar in 2020.
Light snow time is 202 1 year:165438+1October 22nd 10:33:34, and the lunar calendar is 202 1 year (small) 18.
Light snow time in 2022:165438+1October 22nd 16:20: 18, October 29th of the lunar calendar.
Light snow time in 2023:1October 22nd 165438+22:02:29, the 10th day of October of the lunar calendar in 2023.
Light snow time in 2024: October 22nd of the lunar calendar 1 13:56: 16.
Light snow time in 2025:1October 22nd19: 35:18, the second day of October in 2025.
Light snow time in 2026:165438+1October 22nd 15:23:03, October 14th, 2026.
Light snow time in 2027:165438+1October 22nd 2 1: 15:54, October 25th, 2027.
Light snow time in 2028: 20281October 22 (the sixth day of the tenth lunar month) 1 12:54:02.
Light snow time in 2029:1October 22nd18: 49: 01,October 17th, 2029.
Light snow time in 2030:165438+1October 22nd 14:44: 12, October 27th of the lunar calendar.
203 1 year light snow time:165438+120: 32 on October 22nd:11,the eighth day of the 10th lunar month (small).
Light snow time in 2032:1October 22nd12: 30: 44, October 20th, 2032.
Light snow time in 2033: 1 1 8:15: 421October 22nd, and the first day of the lunar calendar10/month in 2033.
Light snow time in 2034:165438+1October 22nd 14:04:28 20341October12nd.
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Calculation formula of light snow solar term time
The "Xiaoxue" solar term is generally on165438+1October 22nd or 23rd every year, and there is a formula (limited to Dongba time zone) (y× d+c)-L.
Interpretation of the formula: Y= two digits after the number of years, D=0.2422, L= leap year, 2 1 century C=22.36, and 20th century =23.08.
For example, the date of light snow in 2088 = (88× 0.2422+22.36)-(88÷ 4) = 43-22 = 2 1, 165438+ 10/0/.
Exception: 1978 plus 1 day.