Time: 2nd to the 3rd day of the first lunar month.
Place: Gia Thanh Commune, Phu Ninh District, Phu Tho Province.
Characteristics: Praying for giving son, making sacrifice to the God, offering banquet with 12 glutinous rice cakes (banh chung), 12 day cakes, steamed momordica glutinous rice (xoi gac).