What festivals are there in the 24 solar terms?

Tomb-Sweeping Day originates from Tomb-Sweeping Day Qi in the twenty-four solar terms;

Tomb-Sweeping Day, originally the fifth of the 24 solar terms, "Spring begins with spring, and the Qingming Valley Day", later merged with the custom of cold food: it rains in succession during the Qingming Festival.

As a festival, Qingming Festival is different from pure solar terms. Solar terms are symbols of phenological changes and seasonal order in China, while festivals contain certain customs and activities, which have certain commemorative significance.

Tomb-Sweeping Day is a traditional festival in China, and it is also the most important festival to worship ancestors and sweep graves. Grave-sweeping is commonly known as going to the grave and offering sacrifices to the dead. Most Han people and some ethnic minorities visit graves in Tomb-Sweeping Day.