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20 14 is neither a multiple of 4 nor a multiple of 400. Why do you want to fly over the moon?

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What does September mean by 20 14?

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In fact, we are not common in leap years. On the first day of the first lunar month, 2065438+65438+13 1 in 2004, the arrival of the Year of the Horse is different from that in year of the snake. The reason is that the Chinese and Japanese lunar years are leap years, with a total of 384 days, 29 days more than year of the snake.

So what does a leap September of 20 14 mean? Let's have a look!

What does September mean by 20 14?

Leaping in September, according to the lunar calendar, means that there are two September in a certain year. There are few leap months in September. In the 200 years before 2020, there are only 1832 and 20 14 in this century, and there will be 2 109 in the next century.

It is understood that in order to coordinate the number of days between the solar calendar and the lunar calendar, the ancients adopted the method of setting leap months. 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 lunar leap year, there are 383 ~ 385 days in a year, while the average lunar year is generally 353 ~ 355 days.

According to the lunar calendar, leap September means that there are two September in a year, and leap months are rare in September. From the list of leap months, we find that in the 200 years before 2020, leap September only has 1832 and 20 14 years, and the next leap September will appear in 2 109.

Zhao Zhi Heng, an expert in astronomy education and director of Tianjin Astronomical Society, said that in the solar calendar, the earth's revolution around the sun is a tropical 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.

"There are two ninth days of September in the Lunar Year of the Horse. Is it necessary to have two double ninth festivals? " For the upcoming Year of the Horse in Wu Jia, China, careful netizens found that there are two September lunar months in 20 14, which not only means that people born in September can have two birthdays, but also means that there will be two Double Ninth Festival (the ninth day of September).

How to spend the two Double Ninth Festival? Nanchang folklore experts said that when encountering this leap month, people usually take the practice of chasing after the front, that is, celebrating the Double Ninth Festival in the first September, and then blurring it in the second September.