Ching Ming Festival (清明節) Tomb Sweeping Day (掃墓節) Observed by: Chinese, Chitty [1] and Ryukyuans: Type: Cultural, Asian: Significance: Commemoration of the remembering of ancestors: Observances: Cleaning and sweeping of graves, ancestor worship, offering food to deceased, burning joss paper: Date: 15th day after March equinox ...