2009 is the year of double spring. When is the next double spring year?

The double spring year means that there are two solar terms in beginning of spring in a year. The double spring year is a unique phenomenon in Chinese calendar, which is actually caused by the "wrong balance" between the solar calendar and the lunar calendar.

For example, the first beginning of spring in the Year of the Monkey in 2004 was on February 4, 2004, and the second beginning of spring in the Year of the Monkey was on February 4, 2005, because the Year of the Rooster was only on February 9, 2005, which was a double spring. In 2004, the year of the monkey had a leap in February, which was a "double spring year", and in 2005, the year of the rooster became a "spring-free year".

AD 20 12, leap year in Gregorian calendar, ***366 days, 53 weeks. Lunar New Year (the Year of the Loong), leap in April, ***384 days. 265438+the second year of the 20th century, 10, is the 63rd anniversary of the founding of People's Republic of China (PRC).

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The reason of double spring year

The solar calendar is divided into 12 months, which is 365 days (there are 366 days in leap years). The lunar calendar is based on the law of the moon's profit and loss. The orbit of the moon around the earth is 1 month, and a year is 12 months. The actual number of days is 354 days. In this way, there is a deviation of 1 1 day between the lunar calendar and the solar calendar, so the lunar calendar has a "leap month" to solve the time difference problem of the lunar calendar.

As the saying goes, double spring is a leap month and a good year for marriage. China also has a saying: beginning of spring has the meaning of second spring twice, so it is not suitable for marriage. In fact, "double spring" and "no spring" are the results of the arrangement that must be "set right" between the solar calendar and the lunar calendar. And "no spring" or "double spring" is also the result of artificial arrangement, which has nothing to do with fortune.

Baidu Encyclopedia-Double Spring Year

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