Business Days Calculator
Count working days in a date range while excluding weekends and entered holidays.
How to use the Business Days Calculator
- Set start date, end date, weekend pattern and optional holiday dates to match the record or scenario you are checking.
- Verify the weekend definition and the exact holiday calendar for the relevant location before you run the calculation.
- Use Calculate to count included business days and excluded calendar days.
- Recheck the source data if you may be assuming public holidays are loaded automatically.
What this calculator does
Count working days in a date range while excluding weekends and entered holidays. Its calculation is driven by start date, end date, weekend pattern and optional holiday dates. The output is intended to count included business days and excluded calendar days, while workplace rules and source records remain external to the calculator.
Date and planning results use the weekend, holiday, schedule and time assumptions entered on the page. Confirm organization-specific calendars before relying on a deadline or roster date.
Weekend rules and holiday lists define the result
Business days are calendar-dependent. A Friday/Saturday weekend produces a different count from a Saturday/Sunday weekend, and a holiday only changes the result when it falls on a day that would otherwise be counted as a workday.
Calculation example
Example input: Monday July 27 through Friday July 31 with Saturday-Sunday weekend
Example result: 5 business days.
It does not confirm your own scenario until start date, end date, weekend pattern and optional holiday dates and the weekend definition and the exact holiday calendar for the relevant location have been checked.
How to interpret the result
Verify the weekend definition and the exact holiday calendar for the relevant location, and do not rely on the result if you may be assuming public holidays are loaded automatically.
Practical checks before using the result
- Verify the key assumption: the weekend definition and the exact holiday calendar for the relevant location.
- Avoid a common error: assuming public holidays are loaded automatically.
Calculation design and testing notes are documented in the Calculator Methodology and Accuracy Policy.