Planning tool
Date Difference Calculator
Find the exact years, months, weeks, days, hours, and business days between dates.
Runs in your browser- Calendar difference
- 0 years, 11 months, 30 days
- Total days
- 364
- Full weeks
- 52
- Remaining days
- 0
- Business days
- 260
- Total hours
- 8,736
Business days exclude Saturdays and Sundays but do not remove public holidays.
How to use this date difference calculator
- Enter the start and end date and time, then choose whether business days should exclude weekends.
- Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
- Change one input at a time to compare another case, then copy or save the result you plan to use.
About this date difference calculator
The Date Difference Calculator lets you find the exact years, months, weeks, days, hours, and business days between dates. The controls cover only the inputs needed for the result.
You can also use it to compare results after changing one input.
Example
Compare January 31 with March 1 to see calendar months and days separately from the total day count.
Common uses
- → find the exact years, months, weeks, days, hours, and business days between dates
- → compare results after changing one input
- → save an estimate for planning or comparison