Date Difference Calculator
Calculate the exact time between two dates in years, months, weeks, days, hours, and minutes.
About This Calculator
The Date Difference Calculator finds the exact time between any two dates. Calculate project durations, count days until an event, or find how long ago something happened.
How to Use
- 1Enter the start date
- 2Enter the end date
- 3Choose whether to include end date
- 4View results in multiple formats
Formula
Days = |End Date - Start Date| / (1000 × 60 × 60 × 24)Calculate the absolute difference in milliseconds, then convert to days and other units.
FAQ
Yes, the calculator uses actual dates and properly handles leap years in calculations.
Workdays count Monday through Friday, excluding weekends. It does not account for holidays.
Use "Include End Date" when counting inclusive days, like hotel stays (check-in to check-out).
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