Business Days Calculator
Enter a start date and end date to calculate the number of business days (weekdays) between them, automatically excluding Saturdays and Sundays. You can optionally add custom holiday dates to exclude those as well.
The tool shows a breakdown of total calendar days, business days, weekend days, and excluded holidays, so you can see exactly how the count was computed. Useful for project planning, SLA calculations, shipping estimates, and employment duration calculations where only working days count.
Custom holidays are entered as dates in YYYY-MM-DD format, one per line. Everything runs in your browser.
By The Paper Room Editorial Team — Date Tools
Frequently asked questions
What counts as a business day?▼
Monday through Friday. Saturdays and Sundays are excluded by default. You can also exclude specific holiday dates by entering them in the holidays field.
Does it include public holidays automatically?▼
No. Public holidays vary by country and region, so the tool lets you enter your own holiday dates. Enter each date on a separate line in YYYY-MM-DD format.
Does the count include the start and end dates?▼
The start date is included and the end date is excluded, following the convention most business day calculators use. This matches how most deadline and SLA calculations work.