Business Days Calculator (Working Days)
Count working days between two dates, or add business days to a date — weekends excluded.
Pick a start and end date. Both endpoints are included in the count.
About Business Days Calculator (Working Days)
Two calculators in one: count the number of business days (Monday to Friday) between two dates, or add a given number of business days to a start date to find the resulting date — weekends are skipped automatically. It also shows how many weekend days and total days fall in the range.
Use negative numbers to go backwards when adding business days. Everything is calculated locally in your browser; nothing is uploaded. Note that public holidays aren't excluded — only weekends.
Working days in a range
2026-07-06 (Mon) to 2026-07-17 (Fri)
10 business days · 4 weekend days · 12 total
Or add 10 business days to a date to get the deadline.
Frequently asked questions
Which days count as business days?
Monday through Friday. Saturdays and Sundays are excluded. Both endpoints are included in the count when they're weekdays.
Are public holidays excluded?
No — only weekends are skipped. Holidays vary by country, so you'd subtract any that fall in the range yourself.
Can I add business days to a date?
Yes. Switch to 'Add business days', enter a start date and a number (negative to go backwards), and it returns the resulting weekday date.
Is anything uploaded?
No. All calculations run in your browser.