May 2027 in Japan
4 holidays / observances this month. Notable dates include International Workers' Day, Constitution Day, Greenery Day, and more. See the full 2027 calendar or holidays list.
Calendar
May 2027 — Japan
Full May 2027 calendar for Japan. Tap a marked day for holiday details.
Public / federal holidayObservanceInternational dayToday
May 2027
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Holidays in May
4 dates
International Workers' Day
Sat, May 1 · Observance
Constitution Day
Mon, May 3 · Public holiday
Greenery Day
Tue, May 4 · Public holiday
Children's Day
Wed, May 5 · Public holiday