May, 1987 (lunar calendar) was Runjun, or last June, which happened to be 15. I don't know whether it is July or June.

In the Gregorian calendar (Gregorian calendar), a year with leap days is called leap year, which is generally 365 days and 366 days. Because the earth's cycle around the sun is 365 days, 5 hours, 48 minutes and 46 seconds (365,438+09 days), which is the tropic year, the Gregorian calendar sets a year as 365 days. The remaining time is about one day in four years, plus February, so the normal year is 365 days, February is 28 days, leap year is 366 days, and February is 29 days. So every 400 years, there are 97 leap years, with one day added at the end of February and 366 days in leap years. Calculation method of leap year: the number of years in the calendar year can be divisible by four, which is a leap year; Divided by 100 but not divided by 400 is an average year; Leap years can be divisible by 100 or 400. For example, 2000 is a leap year, and 1900 is not.

In the China lunar calendar, a year with a leap month is called a leap year. The general year is 12 months, 354 or 355 days, and the leap year is 13 months, 383 or 384 days. As a kind of lunar calendar, the number of days in each month depends on the monthly loss, and the time of one year is based on 12 months. In order to close the earth's cycle around the sun, that is, the tropic year, one month is added every two to four years, and the added month is a leap month, so the leap year of the lunar calendar is 13 months.

There is no thirteenth month in the lunar calendar. According to the calendar rules, leap months are repeated from February to the same month after 10, and the repeated months are leap months. For example, the leap month after April is called leap April.

Calculation of leap month in lunar leap year, three-year leap, five-year leap, 19 leap; The lunar calendar basically takes 19 as a cycle, corresponding to the same time in the Gregorian calendar. For example, in the Gregorian calendar, May 27th, 2006, 5438+0, May 27th 1982 and May 27th 1963 are the fifth day of leap April.

The month of the leap month is inferred according to the laws of the lunar calendar, mainly according to the coincidence with the 24 solar terms of the lunar calendar; The number of leap months in the lunar calendar is 29 or 30 days, just like normal months.

The so-called "leap" in the lunar calendar is just called leap year and leap month, and there are also leap years in the solar calendar.

Gregorian calendar 1982-2042 and lunar leap year leap month comparison table

The year of the leap month (the first day) in the Gregorian calendar month.

1May 23, 982, leap April, small non-year.

1984165438+1October 23rd, October of leap year.

1July 26, 987, leap June, big year.

1June 23, 990, leap in May, year of Dageng Wunian.

1April 22, 993 March of leap year.

1995 August 25th of leap year.

1June 24, 998 leap year may small wuyin year

200 1 leap April, Xinsi year.

March 2 1 day, 2004, was February of the Great Shen Jianian.

August 24, 2006, leap July, the year of Taepo B.

June 23, 2009, leap May, the year of great ugliness.

20 12 may 2 1 leap April, the year of Xiao renchen.

2014101October 24th, leap in September, Xiao Wu's good year.

2065438+July 23, 2007, leap June, Dading Unitary Year.

May 23, 2020, leap into April, the year of little boxer.

March 22, 2023, leap February, the year of the Great Guimao.

July 25, 2025, leap June, has been four years.

June 23, 2028, leap in May.

April 22, 20031year, leap into March, 1911.

August 25th, 2033, July of leap year.

July 23, 2036, leap June, Xiao nian.

June 22, 2039, leap in May, has not yet reached the end of the year.

March 22, 2042, leap February, a big year.

2004 is a leap year in the Gregorian calendar. February has 29 days, 28 days more than February in normal years. The ancient Egyptians and calendar experts in China during the Spring and Autumn Period calculated that a year was 365 days. In fact, the time for the earth to go around the sun (that is, a year in the solar calendar) is 365 days, 5: 48: 46. This adds 23: 15 minutes and 4 seconds in four years, which is close to one day (24 hours). Therefore, calendar experts stipulate that a "leap year" is set every four years, that is, one day is added in February this year, also called "leap day", and later it is stipulated that 97 leap years are set every 400 years.

2004 is the year of Shen Jia in the lunar calendar and also a leap year. Lunar calendar calls it "leap month", that is, one more month in a year, that is, 13 months. There is a lunar calendar in the ancient calendar of China, in which the period of full moon is one month, the period of big moon is 30 days in odd months, the period of small moon is 29 days in odd months, and the period of a year is 354 days, which is 1 1 day less than the time for the earth to go around the sun, and more than 33 days less than three years. Therefore, calendar experts stipulate that a "leap month" should be set up every three years. For the sake of accuracy, it is also stipulated that 19 should set seven "leap month" years.

Each month contains two solar terms. The working people in ancient times called the first solar term (beginning of spring, Jing Zhe, Qingming, Long Summer, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Cold Dew, beginning of winter, Heavy Snow and Slight Cold) "solar term". The last solar terms (rain, vernal equinox, Grain Rain, Xiaoman, Summer Solstice, Great Summer, Early Summer, Autumn Equinox, Early Frost, Light Snow, Winter Solstice and Great Cold) are called "Zhongqi". After the Han Dynasty, the month without neutrality was designated as the leap month of the first lunar month, and this rule of placing leap has continued to this day.

There is no thirteenth month in the lunar calendar. According to the calendar rules, the emissions of leap months are repeated in the same month from February to 10. Repeated months are leap months, and leap years in the lunar calendar are calculated as leap months, three-year leap, five-year leap, 19 leap. The lunar calendar basically takes 19 as a cycle, corresponding to the same time in the Gregorian calendar. If you were born on May 27th of Gregorian calendar 1982, then your birthday on May 27th of Gregorian calendar 200 1 is also the fifth day of leap April, which means that your Gregorian birthday will coincide with Gregorian birthday every 19.

After reading it, you should be able to forget it yourself ~ ~