1988 Is there a leap month? Is there a leap month every few years?

1988 has no leap month, and 19 has seven leap months. 1988 is a leap year in the Gregorian calendar, with a total of 366 days and 53 weeks. There is no leap month in the Lunar New Year (the Year of the Loong), with a total of 354 days.

Leap month refers to one month added every leap year in the Chinese calendar (also called lunar calendar) (in order to coordinate the contradiction between the tropic year and the Chinese calendar and prevent the lunar calendar from being out of touch with the tropic year and the four seasons, 1 leap is set every two to three years. In ancient times, 19 leap week was used, but in the Linde calendar of the Tang Dynasty, the fixed leap week was abolished and irregular months were used.

Extended data

Calculation of leap month: the lunar calendar takes the moon as the cycle (lunar calendar), and the December calendar has a total of 354.3672 days; Combined with the almanac (solar calendar), the almanac is compiled according to the four-season cycle formed by the revolution of the earth. The monthly calendar is shorter than the annual calendar, with a difference of 10.875 days. Therefore, there is a difference of 206.625 days every 19 years, which is equivalent to 6.997075 moons.

It is up to 24 solar terms to decide which month is a leap month. Lunar months usually contain a solar term and a neutral gas, such as the vernal equinox. If a lunar month has only solar terms and no neutral atmosphere, the calendar will take that month as a leap month of last month. Take 2006 as an example. After July of the lunar calendar, there happens to be a month with only solar terms and no neutral atmosphere, so we set leap July to adjust the error.

The date of the twenty-four solar terms in the lunar calendar is postponed month by month, so in some lunar months, the qi falls at the end of the month and there will be no qi in the next month. Generally speaking, there is no gas for one month every two years, which is consistent with the year when leap months are needed. Therefore, the lunar calendar stipulates that non-neutral months are leap months.

Baidu encyclopedia-leap month

Baidu Encyclopedia-1988