How many years does it take to leap into September?

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

The current leap year method is "seventeen leap years in nineteen years", that is, seven leap years are added to 19 lunar year. Because there is a leap month in the lunar leap year, 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 for a tropic year, with 365 days in a normal year and 366 days in a leap year. The traditional lunar calendar in China is based on the moon's profit and loss cycle, with a month of about 29.5306 days, 12 months of 354 days or 355 days, less than the solar calendar 1 1 day.

Extended data:

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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 an extra 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 "seventeen leap years in nineteen years", that is, seven leap years are added to the 19 lunar calendar. There are few leap months in September.

The last leap in September was 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, director of the Climate Center of the Provincial Meteorological Bureau, said that the leap moon is a phenomenon in the lunar calendar and has no direct relationship 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.