date tools
Business Days Calculator
Count weekdays between two dates with optional excluded holiday dates.
Private by design
Enter your values
Results update locally in this browser.
How this tool works
Business days are Monday through Friday. User-entered holidays are excluded when they fall inside the range.
Privacy and limitations
Your entries and results stay in this browser. Check important results against the rules, records or systems that govern your situation.
Clear answers
Frequently asked questions
What does the Business days do?
Count weekdays between two dates with optional excluded holiday dates.
How does the Business days work?
Business days are Monday through Friday. User-entered holidays are excluded when they fall inside the range.
What can I learn from the Business days?
It shows how the entered values or choices produce the result. Change one input at a time to compare outcomes and understand the underlying rule.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as a practical reference and review the explanation on this page when exact counting conventions matter.
Last reviewed 2026-07-14. Calculations tested 2026-07-14.