Date Difference Calculator
Calculate the exact difference between two dates in years, months, days, hours and business days.
About the Date Difference Calculator
The Date Difference Calculator works out the exact time between two dates in years, months, weeks and days, and counts business days, which is useful for deadlines, notice periods and age calculations.
Times come from your browser’s built-in IANA time zone database, so daylight saving rules are always current.
How to use the Date Difference Calculator
- Choose the start and end dates.
- Read the difference in each unit.
- Check the business days count for working-day deadlines.
Frequently asked questions
Are weekends excluded from business days?
Yes, Saturdays and Sundays are excluded. Public holidays differ by country and are not removed.
Is the end date included?
The difference counts the time between the two dates, so the end date itself is not added as an extra day.
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