Constitution Memorial Day in Japan
View the global Constitution Day guide
Constitution Memorial Day, KenpÅ Kinenbi, is a Japanese national holiday on 3 May. It commemorates the Constitution of Japan taking effect on 3 May 1947 and forms part of Golden Week.
Constitution Day
Holiday
Japan
Country
2026
Next Date Year
Sunday
Day
May
03
May 3, 2026
Constitution Day Date in Japan
Date
May 3, 2026
Day
Sunday
Public Holiday
Yes
Bank Holiday
Yes
Date Confirmed
Yes
Constitution Day Dates in Japan
Constitution Day 2026
- Confirmed
Constitution Day 2027
- Confirmed
Constitution Day 2028
- Confirmed
History of Constitution Day
The National Holidays Act describes the day as commemorating implementation of the Constitution and anticipating the nation's continued growth.
Importance of Constitution Day
The observance highlights constitutional government, peace and civic institutions. Its Golden Week position also makes it operationally important.
How Constitution Day Is Celebrated in Japan
Public institutions may offer constitutional programs or special access, while many residents travel during the wider Golden Week sequence.
Office Impact
Government offices close. If 3 May falls on Sunday, the statutory substitute-holiday rule can create a later holiday after the adjoining national holidays.
Bank Impact
Bank of Japan offices close on national holidays and substitute holidays. Branch and settlement calendars reflect the full Golden Week sequence.
School Impact
Schools close for the national holiday, with the adjacent holidays often creating several consecutive days away from class.
Travel Information
Golden Week is one of Japan's busiest travel periods. Book trains, flights and accommodation well in advance.
Frequently Asked Questions
When is Constitution Memorial Day?
It is observed on 3 May.
What does it commemorate?
The Constitution of Japan took effect on 3 May 1947.
Why can Golden Week last longer?
Adjacent holidays and statutory substitute or between-holidays rules can add non-working days.