How big is a month? How big is Tianyue? How big is Tianyue?

The month is (3 1) days, the month is (30) days and the month is (29 or 28) days.

The Gregorian calendar has 3 1 day for the big month and 30 days for the small month. Every year, 65438+ 10 month, March, May, July, August, 65438+ 10 month and 65438+February are fixed as big months; April, June, September, 165438+ October are all miscarriages. February is neither a big moon nor a small moon. February in a normal year has 28 days and leap year has 29 days.

There are 30 days in the big moon and 29 days in the small moon in the lunar calendar. The distribution of big and small moons is irregular and different every year.

The method of remembering the big moon and the small moon

First mnemonic method: 12 months (leap year and peace year)

Clench your fist. The concave place is called "abortion" and the protruding place is called "big moon". Start from the right index finger joint to the little index finger, and then change the left index finger joint after counting.

Formula:

January is big, and February is flat (leap);

March is big and April is small;

May is big and June is small;

July is big, August is big;

September is small, October is big;

November is small and December is big.

Only February of leap year has 29 days, and all other months have 28 days.

Phrase formula memory:

135780 wax, 3 1 day is not bad;

Winter 30, 469, February 28, normal year;

Add one in February of leap year.