Calcwise / Time and dates / Working days calculator
Working days calculator
Pick two dates and enter how many public holidays fall on working days in that time.
Calculated in your browser. Nothing you enter is sent or stored.
About this tool: Working days calculator
Working days are the days from Monday to Friday. They matter for delivery times, payment terms, notice periods and project plans. Both the first and the last date are included.
Public holidays differ between countries and years, so the calculator does not guess them. Count the holidays that fall on a weekday in your range and enter the number to subtract them.
Formula
Working days = weekdays (Monday to Friday) between the two dates, both included, minus the public holidays you enter.
Worked example
1 to 31 January 2026 has 31 calendar days, of which 22 are weekdays and 9 are weekend days. With 1 public holiday on a weekday that leaves 21 working days.
Sources and data
- Formulas and data last reviewed
- Accuracy
- The result is plain maths: with valid input it is exact, and we only round to cents.
Frequently asked questions
Does it know my country's public holidays?
No, because they change from year to year. Enter the number of holidays that fall on a weekday in your range.
Are both dates included?
Yes, the first and the last day are both counted if they are weekdays.
How many working days are in a year?
A typical year has 260 or 261 weekdays before holidays. 2026 has 261.