When is the moon at its fullest?It is often said that the moon on the fifteenth day is sixteen round, but in the sixth month of the year of the Geng Zi Rat, the moon on the fifteenth day is fourteen round, and the most round moment occurs at 23:59 on August 3.

Astronomical experts said, "fifteen of the moon fourteen round" this phenomenon is relatively rare.This will happen only six times in the 100 years of the 21st century.