Monthly register
Japan public holidays in May 2026
Japan has 5 public holidays in May 2026.
May 2026 in Japan runs 31 calendar days, Northern-hemisphere spring and Southern-hemisphere autumn. Japan observes 5 public holidays in May 2026: Constitution Memorial Day, Constitution Memorial Day, Greenery Day, Children's Day, Constitution Memorial Day Observed. 4 of those fall on weekdays and reduce the working-day count accordingly. That leaves 17 working days for Japan businesses, payroll cycles, and project schedules in May 2026. May centres on May Day / Labour Day, observed in over 80 countries on the 1st, and on Memorial Day in the United States at the end of the month. For broader context, see the full 2026 calendar for Japan or the global view of holidays observed in May 2026 across all 190 countries we cover.
18
Working days
10
Weekend days
3
Public holidays
31
Days in May
- May3
- May4
- May4
Greenery Day
Monday, May 4, 2026
みどりの日
- May5
Children's Day
Tuesday, May 5, 2026
こどもの日
- May6
Constitution Memorial Day Observed
Wednesday, May 6, 2026
When is Constitution Memorial Day Observed in 2026? →
Coming up in Japan
- Jul 20Marine Day
- Jul 20Sea Day
- Aug 11Mountain Day
Long weekend in May
Japan has a long weekend in May 2026
Constitution Memorial Day & Greenery Day & Children's Day & Constitution Memorial Day Observed · 9d
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