Coming of Age Day

Coming of Age Day
Young women celebrating Coming of Age Day at Meiji Shrine in Tokyo, 2008
Official name	成人の日 (Seijin no Hi)
Observed by	Japan
Type	Public
Significance	Congratulates and encourages all those who have reached the age of maturity (20 years old) over the past year and celebrates adulthood
Date	Second Monday in January
2023 date	January 9  (2023-01-09)
2024 date	January 8  (2024-01-08)
2025 date	January 13  (2025-01-13)
2026 date	January 12  (2026-01-12)
Frequency	annual

Coming of Age Day (成人の日, Seijin no Hi) is a public holiday in Japan held annually on the second Monday of January under the Happy Monday System. It is held in order to congratulate and encourage all those who have already reached the age of maturity between April 2 of the previous year and April 1 of the current year, and to help them realise 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 among family and friends.