How many days are there in the double leap year in 2020? What is the longest leap year in the lunar calendar?

Days of Double Leap Year in 2020:

1 Gregorian calendar 2020: 366 days

Lunar year 2020: 384 days

Query on the time and date of the 24 solar terms of the lunar calendar in 2020:

Beginning of spring February 4, 2020 17:03: 12 Rain February 2020 19 12:56:53.

March 5, 2020 10:56:44 Equinox March 20, 20201:49: 29

Tomb-Sweeping Day April 4, 2020 15:38:02 Grain Rain April 2020 19 22:45:2 1.

Long summer on May 5, 2020 at 08:5 1: 16 short summer on May 20, 2020 at 2 1:49:09.

Summer solstice on June 5, 2020

Summer heat July 6, 2020 at 23: 14:20, summer heat July 22, 2020 16:36:44.

Beginning of autumn on August 7, 2020 at 09:06:03, August 22, 2020 at 23:44:48.

Millennium September 7, 2020 12:07:54 vernal equinox September 22, 2020 2 1:30:32.

123 October Cold Dew 2020103: 55: 07 First Frost 2020106: 59: 25.

Beginning of winter 2020 1 17: 13:46 xiaoxue 2020114: 39: 381October 22nd.

00:09:2 1 winter solstice February 2, 20201.

Slight cold 202 1 year 0 1.05 1.23: 17 Great cold 202 1 year 0 1 year 04:39:42.

What is the longest lunar leap year?

The longest leap year in the lunar calendar has 385 days.

1 appeared nine times from 22 BC1to 2 AD120.

It appeared 22 times in 2 100 from 1900 to 4000. It appeared in the year:

1925, 1944, 2006, 2270, 2289, 235 1, 2606,

2625，2634，2889，295 1， 1970，3234，3253，

3296, 33 15, 3589, 3608, 3872, 39 15, 3934,

3953

) lunar leap year explanation:

As a kind of China lunar calendar, the number of days in each month depends on the monthly deficit, and the time of one year is based on 12 months, and the normal year is about 1 1 day less than a tropical year.

In order to close the earth's orbit 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.

The month of the leap month is inferred according to the laws of the lunar calendar, which is mainly determined according to the coincidence with the 24 solar terms of the lunar calendar.

The year with leap month is 13 months, and the calendar year is 383 to 385 days. This year is also called leap year.