Working Days Calculator
Count Mon–Fri working days between two dates, with optional holidays.
Tool workspace
Inclusive Mon–Fri count; listed holidays are excluded.
Weekends are Saturday and Sunday. Optional holidays are YYYY-MM-DD, one per line. Dates are processed locally in your browser.
How it works
Enter start and end dates. The tool counts inclusive Monday–Friday dates and excludes optional holidays (YYYY-MM-DD, one per line).
Weekend definition: Saturday and Sunday. Timezone: calendar dates in your browser; DST does not invent phantom days.
Empty incomplete inputs clear the result—no error.
Weekend definition: Saturday and Sunday. Timezone: calendar dates in your browser; DST does not invent phantom days.
Empty incomplete inputs clear the result—no error.
Examples
- Mon–Fri same week with no holidays = 5 working days
- A holiday on Wednesday reduces that week to 4
Privacy
Privacy: this tool processes dates locally in your browser. We do not log or store what you enter. Login is not required.
FAQ
Are my dates uploaded?
No. Working-day math runs entirely in your browser.
Which days are weekends?
Saturday and Sunday by default.
Do I need an account?
No. All published tools work for guests without login.