Coming of Age Day(成人の日,Seijin no Hi?) is a Japanese holiday held annually on the second Monday of January. It is held in order to congratulate and encourage all those who have reached the age of majority (20 years old(二十歳,hatachi?)) over the past year, and to help them realize that they have become adults. Festivities include coming of age ceremonies(成人式,seijin-shiki?) held at local and prefectural offices, as well as after-parties amongst family and friends.