Which is more scientific, the lunar calendar or the solar calendar?

They are all very scientific. Whether it is convenient or not depends on your industry and region.

The Gregorian calendar is based on the time when the earth revolves around the sun for one year, also known as the tropic year, ***365.2422 days.

According to the calculation of 365 days a year (big month 3 1 day, small month 30 days, February 28 days), four years is about less 1 day. So that day will be added to the fourth year and February, and this year is called leap year. There are 365 days in a normal year and 366 days in a leap year, which is the origin of "three levels and one leap".

According to three levels and one leap, the average length of the solar calendar year is only 26 seconds worse than the tropic year, so it is still relatively accurate.

The solar calendar is related to the revolution of the earth, so basically every year in the same month, the cold and hot weather and the climate are relatively stable, which can predict the changes of seasons and guide agricultural production.

The lunar calendar can represent the moon's gain and loss and the change of tides, which is very practical for fishermen in the offshore area.

The lunar calendar is based on the time when the moon is full and short, also called the new moon. The length of the first lunar month is 29.5306 days. Therefore, the lunar calendar is designated as the 30th day of the big month and the 29th day of the small month, which appear alternately, with an average of 29.5306.

Lunar year, that is, the length of twelve moons, is 29.5306× 12=354.3672 days. This is less than 365.2422 days in the Tropic of Cancer 1 1 day.

The annual difference between lunar year (354.3672 days) and solar year (365.2422 days) can be 1 1 day. If the year is calculated by the lunar calendar, the time difference will be considerable.

If 1 month of the lunar calendar coincides with 1 month of the solar calendar, after 17 years, 1 month of the lunar calendar corresponds to June of the solar calendar. To put it bluntly, Spring Festival travel rush is in winter this year, and it will be summer after 17.

Lunar calendar balances the time difference between lunar calendar and solar calendar by setting leap months.

We once set up seven leap months in 19 to balance the time difference, so you can understand that the lunar calendar will be 1 1 day ahead of schedule every year, and a leap month will be added after a while, so the gap will be narrowed, and then the cycle will be repeated.

So the lunar calendar in China is the lunar calendar.

Simply put, if you are a fisherman, it is more convenient to use the lunar calendar because you are more concerned about the tides. If you are in agriculture, if you are in a big city, it is generally more convenient to use the solar calendar.