Why is Tomb-Sweeping Day Lunar New Year?

One is the "lunar calendar", also called the lunar calendar, which depends on the change of the moon. "the origin of Higi" belongs to the lunar calendar.

The other is the "solar calendar", also called the solar calendar, which is calculated according to the movement period of the earth around the sun. The Gregorian calendar, which is popular in the world today, is a kind of solar calendar.

The lunar calendar in China is actually a "yin-yang calendar", that is, the date of the month is used to indicate the movement cycle of the moon (lunar calendar); The period of the earth's revolution around the sun is represented by 24 solar terms (solar calendar). Qingming is one of the 24 solar terms, and it is of course a lunar festival.

Because the timing method of the twenty-four solar terms belongs to the solar calendar, and the Gregorian calendar widely used in the world also belongs to the Gregorian calendar, it is not surprising that each of the twenty-four solar terms always coincides with a certain date in the Gregorian calendar every year (such as Qingming falls on April 5).