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When is Constitution Memorial Day in 2027 in Japan?

Constitution Memorial Day 2027 is on Monday, 2027-05-03

Constitution Memorial Day in Japan falls on Monday, May 3, 2027. That is week 18 of 2027 (ISO week numbering), day 123 of the year. Locally it is also written as: 憲法記念日.

Days until Constitution Memorial Day 2027

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Constitution Memorial Day by year in Japan

YearWeekdayDateISO week
2027Monday2027-05-0318this page
2026Wednesday2026-05-06192026 page

Public holidays near this date in Japan 2027

DateDayHolidayDeducted from working days
2027-05-03Monday憲法記念日Yes
2027-05-04Tuesdayみどりの日Yes
2027-05-05Wednesdayこどもの日Yes

Working days around this holiday

The May 2027 business-days page shows the exact count of working days in the month this holiday falls in, with the holiday deducted and every remaining day listed. The full Japan 2027 holiday list marks whether this date is nationwide (Yes) or regional only.

How the date is verified: the date and weekday above are computed from the calendar, not typed in, and ISO week numbers follow ISO 8601 (weeks start Monday). You can reproduce both by checking that 2027-05-03 is a Monday on any perpetual calendar.

Other questions about Constitution Memorial Day