Date Difference Calculator
Count the days, weeks, months and business days between two dates.
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This tool runs in your browser. Nothing is uploaded.
About Date Difference Calculator
Date Difference Calculator measures the gap between two dates in total days, in weeks and days, in calendar months and days, and in weekdays.
For project timelines, counting down to events, tenancy periods and leave planning.
What it does
- Total days, optionally including the end date
- Weeks, months and years breakdown
- Weekday (Monday to Friday) count
How to use Date Difference Calculator
- Enter a start date and an end date.
- Choose whether to include the end date.
- Read the breakdown.
Frequently asked questions
Should I include the end date?
Include it when both days count, for example a hotel booking counted in days on site. Leave it off for nights or elapsed time.
What if the end date is earlier?
The calculator swaps the dates and tells you it did.
Limits and privacy
Public holidays are not excluded from the weekday count.
Everything happens on your device, so your content never reaches our server.
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