The Mid-Autumn Festival in 2020 is 10/day, and it falls on the 15th day of the eighth lunar month. According to China's calendar, the eighth month of the lunar calendar is in the middle of autumn, which is the second month of autumn, and it is called "Mid-Autumn Festival", while the fifteenth day of August is in the middle of it, so it is called "Mid-Autumn Festival".

There are many nicknames for the Mid-Autumn Festival: in ancient times, there was an activity of the autumn equinox setting off the moon (Yue Bai), so it was called "Moon Festival" or "Festival of Sacrificing the Moon". Because the festival falls on August 15th, it is called "August Festival" and "August and a half". Because the main activities of the Mid-Autumn Festival are carried out around the "moon", it is also commonly known as the "moon festival"; The full moon in Mid-Autumn Festival symbolizes reunion, so it is also called "Reunion Festival". The Mid-Autumn Festival is also called "Reunion Festival" and "Daughter's Day" because the moon is full, families are reunited and married daughters go home for reunion.