Date Difference Calculator
Count the days, weeks, months and years between two dates — with an optional business-days mode.
How to use
- Pick your start and end dates.
- Optionally tick 'business days only' to exclude weekends.
- Click Calculate to see the total days, weeks, months and years.
FAQ
Are both dates counted?
The calculator counts the full span from the start to the end date.
What is a business day?
A normal working day, Monday to Friday. Public holidays are not automatically excluded.
Is it private?
Yes — runs entirely in your browser.