What's the festival on April 4th?

Tomb-Sweeping Day in 2024; 2023 and 2022 are cold food festivals. April 4th, 2024 is Tomb-Sweeping Day, and this day is Thursday. Tomb-Sweeping Day, also known as Walking Festival, is the most solemn festival for ancestor worship of the Chinese nation. Grave-sweeping and hiking are two major etiquette themes in Tomb-Sweeping Day. April 4, 2023 is the Cold Food Festival on Wednesday, and April 4, 2022 is also the Cold Food Festival on Monday. On this day, smoking is forbidden and only cold food is eaten, which is 105 after the winter solstice in the summer calendar.