The Cold Food Festival is April 3rd. The Cold Food Festival falls on 105 days after the summer solstice, that is, one or two days before Tomb-Sweeping Day. In 2024, the Cold Food Festival falls on April 3, which is Tuesday, the 25th day of the second lunar month. The Cold Food Festival was originally set up to commemorate Jietui. According to historical records, during the exile of Zhong Er, the son of the State of Jin, Jiezhitui once gave Zhong Er a piece of meat to satisfy his hunger. After Zhong Er returned to China and succeeded to the throne, that is, Jin Wengong, he forgot to reward Jietui, who did not seek fame and fortune, and took his mother to live in seclusion in Mianshan. When Jin Wengong remembered Jietui and sent someone to ask Jietui to go down the mountain, Jietui refused to leave the mountain. Finally, Jin Wengong released Yamakaji in the hope of forcing Jietui.