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Coming of Age Day

Guide to the date, history, cultural origins and celebration traditions of Coming of Age Day in Japan.

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History & Origins of Coming of Age Day

Coming of Age Day (Seijin no Hi) in Japan is celebrated on the second Monday of January. Historically arising from ancient Shinto transition rituals, the modern holiday was established in 1948 to celebrate and encourage all youths who turned 20 (the legal age of adulthood in Japan for decades) over the past year, welcoming them into society with adult responsibilities.

How It Is Observed & Celebrated

Youths dress in magnificent, expensive traditional Kimonos and Hakamas. They attend formal municipal ceremonies (Seijin-shiki) in city halls, followed by shrine visits with family and evening celebrations with friends.

Quick Facts Card

Country: Japan
Holiday Name: Coming of Age Day
Date (2026): January 12
Day (2026): Monday
Observance Type: Statutory
Observed In: National (Japan)
Back to Japan Holidays

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Date Reference Matrix (3-Year Range)

Year Calendar Date Day of the Week Status
2025 January 13, 2025 Monday Official Statutory Day Off
2026 January 12, 2026 Current Year Monday Official Statutory Day Off
2027 January 11, 2027 Monday Official Statutory Day Off