How many days are there in May?

May is the fifth month of the Gregorian calendar year, and it is a big month. "May" is also called "high moon". In the northern hemisphere, May is the third month of spring. There are two solar terms this month: Long Summer and Xiaoman. The festivals in May mainly include: May 1st International Labor Day, May 4th Youth Day and Mother's Day.

May's English name probably comes from Maya (called Maius in Latin), the goddess who specializes in spring and life in Roman mythology, or Bona Dea, the goddess who celebrates festivals in May, or maiores (meaning "older people") in Latin.

Introduction to big and small months:

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.

The lunar calendar has 30 days for the big moon and 29 days for the small moon. Moreover, the distribution of large and small months is irregular, and it is different every year. The month of the lunar calendar is determined according to the lunar cycle. The date of the new moon (when the sun meets the moon) is the first day of each month, and the date of the next new moon is the first day of next month. Because the period of a month is 29.53 days, it is divided into months and months.

Big moon 30, small moon 29. The "big" and "small" of a month and when it is a "new moon" should be calculated according to the real positions of the sun and the moon. In ancient times, it was called "New Moon". We often say that the lunar calendar is actually the lunar calendar, and its size and month are set strictly according to the moon phase, based on observation, not fixed.