Business Days Calculator
Count working days (Mon–Fri) between two dates, excluding weekends.
Count the working days (Monday to Friday) between two dates, inclusive of both ends, and see how many weekend days were skipped. Contracts, shipping estimates, notice periods and "net 30" payment terms are almost always in business days, so confusing them with calendar days is how deadlines quietly slip — 30 business days is about six calendar weeks, not four.
The count excludes weekends but not public holidays, which vary by country and state, so subtract your local holidays from the result.
Frequently asked questions
How many working days are in a month?
Usually 20–23, depending on how the weekends fall. Enter the first and last day of the month to get the exact figure.
Does this exclude public holidays?
It excludes weekends only. Public holidays vary by location, so subtract your local holidays from the result.
Are both start and end dates counted?
Yes, the calculation is inclusive of both the start and end dates.
Why use business days instead of calendar days?
SLAs, delivery estimates and payment terms are measured in working days. 30 business days is roughly six weeks, not four.