What is the preposition used to express festivals?

Before the Dragon Boat Festival, Lantern Festival and Mid-Autumn Festival, the preposition at.at Dragon Boat Festival is used. In the Mid-Autumn Festival, it is in the Mid-Autumn Festival. The festival in Atlanta is on the Lantern Festival. Usage of at: 1, at means time: a time point, time, etc. They go home at sunrise (noon, midnight, ten o'clock, dawn, dawn). A relatively short period of time can refer to a festival or a day that is considered as an important event in a year. For example, he goes home at Christmas (New Year, Spring Festival, evening). Usage of on: 1, on means time: 1, specific time and a specific time, such as a day, a festival, a day of the week, etc. On Christmas Day (May 4th), there will be celebrations. 2. In a specific morning, afternoon or evening. He arrived on the night of the 5th 10. 3. punctuality, punctuality. If the train is on time, I will get home before dark.