Business Days Calculator
Count business days excluding weekends and Japanese public holidays, or find the date N business days from now.
Japanese public holiday data (based on Cabinet Office publications) covers Jan 1, 2024 to Dec 31, 2027.
What is this tool?
A free business days calculator for Japan. It excludes Saturdays, Sundays and Japanese public holidays, and can count business days between two dates or find the date N business days before or after a base date.
How to use
- Pick a mode: Count, N business days later, or N business days earlier.
- Enter the dates or number of days; adjust Saturday/holiday options if needed.
- See the result, including which holidays and weekend days were skipped.
Use cases
- Estimating delivery or response times that are quoted in Japanese business days.
- Planning deadlines around Japan’s holiday calendar (e.g. Golden Week).
- Checking whether a target date falls on a working day in Japan.
Notes
- This tool is specific to Japan: holidays follow Japan’s public holiday calendar. It does not cover other countries.
- All calculations happen locally in your browser.
FAQ
Which holidays does it exclude?
Japanese public holidays (based on Cabinet Office publications) and weekends. You can include Saturdays or skip the holiday exclusion in the options.
Is this valid outside Japan?
No. This tool is specific to Japan’s public holiday calendar. For other countries, check the local holiday rules.
Is my input sent to a server?
No. All calculations run locally in your browser.
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