Is the solar calendar the lunar calendar?

There is a saying that the lunar calendar is the lunar calendar. Although the lunar calendar is called the lunar calendar, it is not a lunar calendar, but a combination of yin and yang. The solar calendar is the Gregorian calendar.

The solar calendar is also called the solar calendar. The sun has the final say, and the calendar takes the earth's revolution around the sun as the cycle. 1 year ≈? 365.2422 days. This is a calendar based on the cycle of the earth's movement around the sun. According to the date of the solar calendar, we can know the changes of the four seasons, but we can't show the moon's full and short periods, which is very inconvenient for people who need to know the tidal changes according to the moon phases. The popular Gregorian calendar in the world today is the Gregorian calendar. It takes a tropical year as a year and then divides it into twelve months (the number of months is 3 1 day, 30 days and 29 days, all of which are manually designated), which is called the solar calendar, that is, the solar calendar. It is made by westerners, and people in Hong Kong and Taiwan also call it the western calendar.

In the lunar calendar, the moon has the final say, and the chronology takes the moon as a cycle, 1 month ≈30.4369 days. Astronomy mainly refers to the calendar arranged according to the moon phase cycle, in which the moon orbits the earth once (taking the sun as the reference, the actual moon runs for more than one week). ) It doesn't test the annual apparent motion law of the sun at all, so the date of the lunar calendar can't show the changes of the four seasons. Lunar calendar is one of the traditional calendars in China, also known as lunar calendar, ancient calendar, Han calendar, yellow calendar, summer calendar and old calendar.

The difference between lunar calendar and solar calendar The so-called lunar calendar and solar calendar are two different calendar calculations with different reference objects.

The lunar calendar, which is often said, is based on the moon. People call the moon's time around the earth "lunar month", with a period of about 29.53 days. For the convenience of conversion, the big month is 30 days and the small month is 29 days.

The solar calendar is based on the sun, and the time for the earth to go around the sun is called the "solar year", which is about 365.25 days. Divided into 12 months, each month is about 30.44 days.

Because the moon is closer to the earth, it is easy to observe. Therefore, in ancient times, the "lunar calendar" was used more widely, such as eight-character fortune telling, looking at the sky when getting married and building a house, and the calendar of the old yellow calendar was based on the "lunar calendar".

In the folk, birthdays are basically based on the "lunar calendar", especially in rural areas, birthdays are basically calculated according to the lunar calendar; People in the city prefer birthdays in the solar calendar, but in modern times, they are not very particular about it. Even the birthdays of the lunar and solar calendars should be celebrated.

The lunar calendar is very important, but the solar calendar is not without its merits. 24 solar terms, like us, is divided according to the solar calendar.

One revolution of the earth around the sun is 360 degrees, which is divided into 24 parts on average, each part is 15 degrees. So every revolution of the earth is 15 degrees, which is a solar term.

Careful friends may observe that the time of the lunar calendar is about eleven days worse than that of the solar calendar every year. According to the lunar calendar, five years later, spring is spent in summer.