How many years does it take to leap into September?

In the 200 years before 2020, leap September only occurred in 1832 and 20 14 years, that is, once in 90 years, and the latest one occurred in 20 14 years.

The current lunar leap method is "seven leap years in nineteen years", that is, seven leap years are added on the basis of 19 lunar year. Because there is a leap month in the leap year of the lunar calendar, there are 383 ~ 385 days in a year, while the normal lunar year generally has 353 ~ 355 days.

In the solar calendar, the earth revolves around the sun once for a tropic year, with 365 days in a normal year and 366 days in a leap year. However, the traditional lunar calendar in China is calculated according to the moon's profit and loss cycle, and a month is about 29.5306 days, and 12 months is 354 days or 355 days, which is less than the solar calendar 1 1 day.

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September in the lunar calendar is a bit unusual, because there is also a "leap September", which is a once-in-a-century spectacle. September in Hunan is so lovely, who would mind one more September?

The leap month is set to coordinate the number of days between the solar calendar and the lunar calendar. The current method of setting leap years in the lunar calendar is "seven leap years in nineteen years", that is, seven leap years are added on the basis of 19 lunar year. There are few leap months in September.

The last leap in September is still at 1832, and the next leap will be at 2 109, which can be regarded as "once in a hundred years" and can only be met once in a lifetime.

Liao Yufang, director of the Climate Center of the Provincial Meteorological Bureau, said that the leap moon is a phenomenon in the lunar calendar and has nothing to do with the weather and climate.

Agricultural activities in China are generally carried out according to the 24 solar terms, which are not linked to the "month" of the lunar calendar, but are divided according to the year when the sun returns. Therefore, the leap in September does not affect the process of solar terms, and has no direct impact on agriculture and climate.

People's Network _ Leap in September, once in a hundred years, etc.