Business Days Calculator with Holiday Exclusions

Count business days between two dates with optional holiday lists.

Business Days Calculator

Count working days between two dates to plan schedules, deliveries, or SLAs. Operations and project teams use this to avoid counting weekends and holidays.

How to use the Business Days Calculator

  1. Enter the start and end dates.
  2. Optionally add holiday dates to exclude.
  3. Click Calculate to see the business-day count.

Common use cases

  • Estimating lead times for projects.
  • Calculating SLA windows excluding non-working days.
  • Planning payroll or invoicing cycles.
  • Scheduling tasks across teams.

Tips & notes

  • Use ISO dates (YYYY-MM-DD) for clarity.
  • Double-check holiday lists for accuracy.
  • For weekend-only schedules, use a working-days tool instead.

Related time tools

  • Working Days Calculator
  • Days Between Two Dates
  • SLA Deadline Calculator

FAQ

Does it include holidays?
You can paste holiday dates to exclude them.
Are weekends excluded?
Yes. Saturdays and Sundays are excluded by default.
Can I include custom weekend days?
Not yet. It uses a standard Monday–Friday work week.