Count working, weekend, and excluded holiday dates across a calendar range.
Calculate with the Working Days Calculator
Dates are validated as calendar components before calculation.
Working Days Calculator results
How to use the Working Days Calculator
- Enter the required calendar dates, times, or rule values.
- Choose the counting convention or mode where offered.
- Select Calculate or press Enter.
- Review the result, basis, and limitations before using it.
Worked example
A Monday-to-Friday range counts five working days unless a weekday holiday is entered.
Assumptions
Date-only calculations use the proleptic Gregorian calendar and ignore clock time. Elapsed-time calculations and selected-zone conversions state their time basis separately.
Limitations
- This calculator does not automatically know national or state holidays. Add applicable holidays manually.
- Ranges are limited to 200,000 calendar days.
Frequently asked questions
What date basis does the Working Days Calculator use?
The result uses calendar dates unless the page explicitly describes elapsed time or a selected time zone.
Can daylight-saving time change calendar-day totals?
No. Date-only calculations use normalized UTC day numbers. Elapsed timestamp and time-zone calculations are explicitly handled separately.
Are entered dates stored?
No. Calculations run in your browser and the entered dates are not saved or sent anywhere.