Date Difference Calculator
Days, weeks, months, years and weekdays between any two calendar dates.
About the Date Difference Calculator
Date Difference Calculator counts the gap between two calendar dates in multiple units: total days, weeks, months, years AND business days (weekdays only), with the order of the inputs automatically corrected if you swap them.
How to use
- Pick a start date.
- Pick an end date (either order works).
- Read the breakdown of days / weeks / months / years / weekdays.
Benefits & key features
- Business-days count excludes weekends automatically.
- Calendar-correct months and years with day-borrow rules.
- Project-management and HR friendly.
- Pairs with Time Duration for combined day + hour math.
Pro tip
Public holidays are not subtracted. For precise HR leave math, count national holidays in your region separately.