How many days are there in the lunar calendar year? How long is the Gregorian calendar year?

A year is a calendar unit with four solar terms: spring, summer, autumn and winter. Spring is the beginning and end of a year. A year is about 12 months, excluding leap years, solar calendar 365 or 366, lunar calendar 354 or 355 days.

The lunar calendar, also known as the summer calendar, the lunar calendar, the old calendar, the Han calendar and the old calendar, is one of the traditional calendars in China, and the lunar calendar belongs to one of the yin and yang calendars. Gregorian calendar: A solar year is the time between two spring starts, about 365.2422 days. The lunar calendar is calculated according to the fact that the moon revolves around the earth for one month. The year of the lunar calendar is sometimes1February and sometimes1March. The year of leap month is 13 months.

Gregorian calendar Gregorian calendar is 365 days a year, which is calculated according to the earth's orbit around the sun once a year. The time for the earth to go around the sun is 365 days, a little over 5 hours.