Is Qingming April 4th or 5th?

Tomb-Sweeping Day is usually between April 4th and April 6th, but the most common dates are April 4th and April 5th, with April 5th being the most common in Tomb-Sweeping Day.

Tomb-Sweeping Day Qi is a moment in the astronomical calendar, and its time depends on the orbit of the sun. When the sun reaches 15, the time point is Qingming on April 5 or 6 of the solar calendar every year. Tomb-Sweeping Day Qi is a sign of phenological changes and seasonal order in China, which belongs to the solar calendar.