Home /Holidays /Japan /Constitution Day
Constitution Day in Japan
Constitution Day commemorates the enactment of Japan's post-war constitution on May 3, 1947. See the exact date for Japan above.
Next Constitution DayMonday, May 3, 2027
Most recentSunday, May 3, 2026
Public holiday?Yes
History
Constitution Day commemorates the enactment of Japan's post-war constitution on May 3, 1947.
How it's celebrated
It is a public holiday in Japan — government offices, schools, and most businesses close for the day.
See the full list of public holidays in Japan for 2027, browse an interactive calendar, or check holidays for any country with the holidays tool.
Frequently asked questions
Is Constitution Day a public holiday in Japan?
Yes — Constitution Day is a public holiday in Japan.
What does Constitution Day commemorate?
Constitution Day commemorates the enactment of Japan's post-war constitution on May 3, 1947.