How to count working days between two dates

Steps

1. Choose the first and the last day. Both are counted. Here: 1 to 31 January 2026.
2. Count the calendar days: 31.
3. Remove the Saturdays and Sundays: 9 of them, leaving 22 working days.
4. Enter the number of public holidays that fall on weekdays and subtract them: two holidays leave 20.
5. Or enter the dates and the holidays in the working days calculator.

Another example

February 2026 has 28 calendar days and 8 weekend days, so it has 20 working days. A month of four full weeks always has 20 working days before holidays, and months of 30 and 31 days have 20 to 23 depending on where the weekends fall.

Because both the first and the last day are included, a single Monday counts as 1 working day.

Holidays and half-days

The calculator treats Saturday and Sunday as days off and takes the number of holidays you give it. Count only the holidays that fall on a weekday, because a holiday on a Sunday does not reduce the working days. Where your workplace works on some Saturdays or has a different weekly off, adjust the result yourself.

Use it for planning

Working days are what matter for delivery times, loan or visa processing, notice periods counted in business days, payroll and project plans. Divide your task’s workdays by the number of people to estimate the time, and add buffer days for holidays you may not have entered. For calendar days, use the date difference calculator instead.