Japan Public Holidays 2026

Japan has 16 national holidays (祝日). When a holiday falls on Sunday, Monday becomes a substitute.

All 2026 Holidays

HolidayDateDayLinks

New Year's DayJanuary 1, 2026ThursdayDetails Countdown

Coming of Age DayJanuary 12, 2026MondayDetails

National Foundation DayFebruary 11, 2026WednesdayDetails

Emperor's BirthdayFebruary 23, 2026MondayDetails

Vernal Equinox Day~03-20—

Showa DayApril 29, 2026WednesdayDetails

Constitution DayMay 3, 2026SundayDetails

Children's DayMay 5, 2026TuesdayDetails

Marine DayJuly 20, 2026MondayDetails

Mountain DayAugust 11, 2026TuesdayDetails

Sports DayOctober 12, 2026MondayDetails

Culture DayNovember 3, 2026TuesdayDetails

Labor Thanksgiving DayNovember 23, 2026MondayDetails

Frequently Asked Questions

How many public holidays does Japan have?

Japan has 13 major public holidays.

What are the main holidays in Japan?

New Year's Day, Coming of Age Day, National Foundation Day, Emperor's Birthday, Vernal Equinox Day, Showa Day, Constitution Day, Children's Day, Marine Day, Mountain Day, Sports Day, Culture Day, Labor Thanksgiving Day.

Date Tools

Date Add / Subtract Date Difference Calculator Business Days Calculator Age Calculator Day of Year Calculator Week Number Calculator Leap Year Checker

Whatistheday – Day of the Week Calculator

Whatistheday is a free weekday calculator and multi-calendar date converter. Find the exact day of the week for any date — past, present, or future — with 100% mathematical accuracy.

Features

Weekday Calculator: Instantly determine what day of the week any date falls on, from 4000 BC to thousands of years in the future.
10+ Calendar Systems: Convert dates across Gregorian, Hebrew, Islamic (Hijri), Julian, Chinese Lunar, Hindu (Vikram Samvat), Maya (Long Count), Egyptian, and Babylonian calendars.
BC/BCE Support: Full support for ancient and historical dates using the Proleptic Gregorian and Julian calendar systems with astronomical year numbering.
Date Calculators: Business days calculator, age calculator, date difference, day of year, ISO week number, and leap year checker.
50+ Country Holidays: View public holidays and countdowns for over 50 countries worldwide.

Accuracy

Our engine uses the Proleptic Gregorian Calendar for modern and future dates and the Julian Calendar for dates before the Gregorian Reform of 1582. This dual-system approach ensures historically accurate weekday results for any era, making it ideal for academic research, genealogy, and religious calendar synchronization.

Whatistheday is completely free, requires no registration, and works on any device. All calculations are performed locally in your browser for instant results and total privacy.