Which is the solar calendar, fast or slow?

The solar calendar, as its name implies, is a calendar that changes periodically according to the sun, formerly known as the solar calendar. It is also an internationally recognized chronology, also known as the Gregorian calendar. It takes the earth around the sun as a cycle, which is called a year. The period of revolution of the Earth (sidereal year) is 365 days, 6 hours and 9 minutes 10 second. For the convenience of calculation, the normal year is only 365 days, and the extra 6 hours are on the leap day of the fourth year (February 29), which almost makes the extra time unsatisfactory.

In fact, there is also a lunar calendar, the lunar calendar, which means the moon. Therefore, the lunar calendar is a calendar based on the moon phase cycle.

Lunar calendar determines the calendar month based on the new moon. Among them, the new moon means that you can't see the moon at all. This day is called the new moon and is set as the first day of each month in the lunar calendar. Looking at the sun refers to the time when the moon is at its fullest. This day is called looking at the sun, which is the fifteenth or sixteenth day of the lunar calendar.

The lunar calendar is a method of adopting the lunar calendar, but it is characterized by 24 solar terms with 72 climaxes. 24 solar terms and 72 climaxes. Such as beginning of spring, Changxia, beginning of autumn and beginning of winter; The vernal equinox, summer solstice, autumn equinox, winter solstice and so on can finally reflect the changing characteristics of seasons truthfully, and are the crystallization of the great wisdom of the ancients.

Before the introduction of the solar calendar, the ancients in China also created their own unique calendar-the dry calendar. Ten heavenly stems and twelve earthly branches together form sixty basic units, and one unit represents a year, a month or a day. The official calendar starts from the first year of Emperor Xuanyuan's accession to the throne, and takes sixty years (one year) as a cycle, and the calendar is cyclical. Until now, it is still widely used.

Then the date of birth we use for fortune telling is the calendar. Don't make a mistake!

Most foreign countries use the solar calendar to record time, which is why foreign enterprises have a holiday in February, 65438+, because people have been to Christmas. The lunar calendar is the way of punctuality of our ancestors, such as Spring Festival, Long Summer, Tomb-Sweeping Day and Dragon Boat Festival. For the slowest, of course, the moon is the slowest. Chinese New Year is celebrated at the end of the twelfth lunar month, and every Gregorian New Year is 65438+ 10 or the end of February.