Working Days Calculator
Count working days between two dates using a configurable work week.
Enter your values
Use the fields below, then select Calculate. Your result appears immediately on this page.
How to use the Working Days Calculator
Choose a date range and select which weekdays count as working days. This avoids assuming that Monday–Friday is universal.
Formula / calculation logic
Each calendar date in the selected range is counted only when its weekday is enabled in the working-week selection.
Worked example
With Monday through Friday selected, 17–21 August 2026 contains 5 working days.
Important notes
Public holidays are not fetched automatically. Exclude or account for holidays separately because holiday calendars vary by country and organization.
Frequently asked questions
Can I use a Sunday–Thursday work week?
Yes. Select only the weekdays that apply to you.
Are public holidays removed automatically?
No. The calculator intentionally avoids fake or universal holiday assumptions.