Business Days Calculator

Count how many working days are between two dates, with weekends automatically excluded. Useful when you're estimating delivery times, project deadlines, or SLA windows.

How to use

  1. Pick your start and end dates.
  2. Hit Calculate. Saturdays and Sundays are excluded automatically.
  3. Both start and end dates count if they fall on weekdays.

Business days matter for anything with a formal timeline: court filings, bank transfers, vendor lead times, employment notice periods, regulatory deadlines. A 10-business-day window sounds like two weeks but can span 14-16 calendar days depending on where weekends fall, and even longer if public holidays are excluded.

The calculator counts weekdays (Monday through Friday) between two dates. If your jurisdiction or industry observes specific public holidays that should not count as working days, subtract those manually from the result - public holidays vary too much by region and industry to include universally.

Frequently Asked Questions

Does it include the start and end dates?

The convention varies. This calculator counts all weekdays from the day after the start date through and including the end date - the same way most legal and commercial timelines work (Day 1 is the first full business day after the trigger event).

What about public holidays?

Weekends are excluded automatically. Public holidays are not automatically excluded since they differ by country, state, and industry. Subtract any relevant holidays from the result manually.

What if I need to add a specific number of business days to a date?

Use the Add/Subtract Days calculator and then manually skip over weekends and holidays. A dedicated add-business-days feature accounts for varying weekday patterns around weekends.

Business Days Calculator - Working Days Between Dates | ToolHaven