Working Days Calculator
Number of weekdays between two dates, both dates included.
Results
Working days
22
Weekend days
8
Days
30
What this tool does
Counts Monday to Friday and includes both the first and the last day, which is the convention used for project planning and notice periods. Public holidays vary by country and are not deducted — subtract them yourself.
Formula
working days = total days − Saturdays and Sundays
Variables
| Symbol | Meaning | Unit |
|---|---|---|
start_date | Start date | — |
end_date | End date | — |
working_days | Working days | — |
weekend_days | Weekend days | — |
total_days | Days | — |
Worked example
- Start date2026-09-01
- End date2026-09-30
- Working days22
- Weekend days8
- Days30
Limitations
- Only Saturdays and Sundays are excluded. Public holidays differ by country and are not deducted.
- Dates are handled as calendar dates. Time zones, daylight saving changes and public holidays are not taken into account.