Business Days Calculator

Business Days Calculator

Business Days Calculator

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Business days
Included working dates
Excluded (weekends/holidays)
Tip: Press F11 for fullscreen.

Count the exact number of working days between two dates, or add a set number of business days to any start date. Exclude weekends in one click and include public holidays for accurate schedules. This compact, mobile-friendly tool is ideal for delivery estimates, SLAs, payroll, contracts, and project planning.

Free Online Countdown Timer – Fast, Simple, and Accurate

Need a fast way to count workdays? This online Business Days Calculator gives instant results for UK and international planning. Enter your start and end dates to see total business days, and optionally include or exclude the start/end dates. Switch to Add N Days to move a date forward by a chosen number of working days. Add custom holidays—or use the built-in UK Bank Holidays (England & Wales)—to get results you can trust.

Key Features

  • Working days between two dates
  • Add N business days to a date
  • Exclude weekends toggle (Mon–Fri workweek)
  • Include/exclude start and end dates
  • Custom holiday list (add/remove any dates)
  • Quick add: UK Bank Holidays (England & Wales)
  • View included vs. excluded dates for clarity
  • Compact, light design — mobile and desktop friendly

How to Use the Business Days Calculator

  • Choose Between Dates or Add N Days.
  • Select your dates (or set start date + number of business days).
  • Tick Exclude weekends if needed.
  • Add holidays: enter dates or quick-add UK Bank Holidays.
  • (Optional) Toggle Include start/end to match your policy.
  • Read the result and review included/excluded dates.

FAQs – Countdown Timer

  1. Does it handle leap years and month changes?
    Yes. Calculations follow the calendar day by day, so leap years and month boundaries are handled correctly.
  2. How do I count only business days?Select your dates, tick Exclude weekends, and add any holidays that should not count as working days.
  3. Can I include or exclude the start/end date?Yes—use the Include start date and Include end date toggles to match your internal rules or contract terms.
  4. Which holidays are supported?You can add any custom dates. There’s also a one-click generator for UK Bank Holidays (England & Wales). For other regions, just enter the holiday dates you need.
  5. Why might my result differ from a colleague’s? Differences usually come from whether the start/end date was included, or whether specific holidays were added. Make sure you’re using the same options.

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