In those years, there were leap April, and what were the years of leap April

In the old Chinese lunar calendar, a year with a leap month was called a leap year. A normal year is 12 months, 354 or 355 days, and a leap year is 13 months, 383 or 384 days. As a lunisolar calendar, the number of days in the lunar calendar is determined according to the monthly wancing, and the time of the year is based on 12 months; In order to close the Earth's cycle around the Sun, i.e., the return year, every 2 to 4 years, one month is added, and the additional month is a leap month, so the leap year of the lunar calendar is 13 months.

The lunar calendar does not have the title of the thirteenth month, and the leap month is repeated in the same month from February to October according to the rules of the calendar, and the repeated month is called the leap month, such as the leap month after April is called leap April. The calculation of leap months in leap years in the lunar calendar is one leap in 3 years, two leaps in 5 years, and seven leaps in 19 years; The lunar calendar is basically a cycle of 19 years, corresponding to the same time in the Gregorian calendar. For example, May 27, 2001, May 27, 1982 and May 27, 1963 in the Gregorian calendar are all the fifth days of the fourth month of the leap month.

Gregorian calendar 1982 to 2042 and lunar leap year leap month comparison table Gregorian calendar month Leap month (first day of the first month) Ganzhi year May 23, 1982 Leap April small Year 1984 November 23, 1984 Leap October year Jiazi year July 26, 1987 Leap June 1990 June 13 Leap May year Gengwu year April 22, 1993 Leap March year September 25, 1995 Leap August year June 24, 1998 Leap May small May 23, 2001 Leap April 21, 2004 Leap February 24, 2006 Leap July June 23, 2009 Leap May May 2012 October 24, 2014 Leap September July 23, 2017 Leap June 23, 2020 Leap April Year March 22, 2023 Leap April Year March 22, 2023 Leap February Age July 25, 2025 Leap June 23, 2028 Leap May Wushen April 22, 2031 Leap March August 25, 2033 Leap July July 23, 2036 Leap June 22, 2039 Leap May Leap Year Jiwei Year.

The People's Republic of China wasLater, the year of the leap April: 1963 (癸卯年 (甲寅年 (壬戌年 (壬巳年 (壬辰年 (庚子年 (戊寅年 (Jichou Year (Ding You Year (戊申年 (戊申年 (Bingchen Year (Ding Mao Year).

The concept of leap month ** in the ancient lunar calendar, the number of days in a year is exactly the number of rotations of the earth around the sun, and the ancient lunar calendar is error, the lunar year is not equivalent to the actual year, these errors accumulate, just can be in a certain year more than a month, and the extra month is the leap month, if the extra is April is the leap April.

The next leap April in 2020 is38 years later, in 2058.

According to the moon's round and missing, that is, the synodic month, the big month and the small month are arranged, the length of a synodic month is the day, is the cycle of the moon phase of the waxing and waning, the lunisolar calendar stipulates that the big month is 30 days, the small month is 29 days, so that the 12 months of the year are 354 days, the lunisolar calendar months have no seasonal significance, so that the twelve synodic months constitute the Han calendar year, and the length is days.

There are fewer days than the return year (nearly 11 days), and each month is less (nearly 1 day). There is a difference of 11 days between a year and a year in the Gregorian calendar, and only 17 years have passed, and the lunisolar calendar date is inverted with the season, for example, a certain New Year is spent in the snow, and after 17 years, the New Year will be celebrated.

Naturally, the use of such a calendar cannot meet the needs of agricultural production. Therefore, since the Qin and Han dynasties, China's lunisolar calendar has been parallel to the 24 solar terms, and the 24 solar terms are used to guide agricultural production.

The last time was 2012, this time it was 2020, and the next time it will be 2058!

After the founding of the People's Republic of China, the year of the leap April: 1963 (癸卯年 (甲寅年 (壬戌年 (壬戌年 ( Xin 巳 年 (壬辰年 (壬辰年 (庚子年 (戊寅年 ( Ji Chou ( Ji Chou ( Ding 卯 ( ) ( ) ( ( )

The concept of leap month** is based on the ancient lunar calendar, where the number of days in a year is exactly the number of revolutions of the earth around the sun, and the ancient lunar calendar is incorrect.

A lunar year is not the same as an actual year, and these errors accumulate to be just one more month in a certain year, and the extra month is a leap month, and if the extra month is April, it is a leap April.

Leap month:

A leap month is a way of placing a leap in the calendar. Sometimes, a leap month also refers to a month in a leap year of the Gregorian calendar that includes a leap day (specifically February of a leap year in the Gregorian calendar).

Especially in China, the leap month specifically refers to the month added by the Han calendar (also known as the lunar calendar) every leap year (in order to coordinate the contradiction between the return year and the Han calendar year, and prevent the Han calendar year from being out of touch with the return year and the four seasons, 1 leap is placed every 2 to 3 years, and in ancient times, a leap week of 7 leap years was used in 19 years, and a fixed leap week was abolished in the "Lin De Calendar" of the Tang Dynasty, and a leap month without middle gas was used, so the leap time was placed in leap time).