Free Date Difference Calculator

Calculate the exact time between two dates in years, months, days, weeks, and more.

Date Difference

100% client-side. Your dates stay in your browser.

Results

Exact breakdown of the time between your selected dates.

Exact Difference —
Total Days —
Total Weeks —
Total Months —
Total Hours —
Total Minutes —
Total Seconds —
Business Days —
Weekend Days —
Start Day of Week —
End Day of Week —
Leap Years in Range —

Frequently Asked Questions

How is the date difference calculated?

The calculator determines the exact difference in calendar years, months, and days between the two dates, accounting for varying month lengths and leap years.

What are business days?

Business days (or working days) are weekdays from Monday to Friday. Weekends (Saturday and Sunday) are excluded. Public holidays are not excluded since they vary by country.

Does this tool handle leap years?

Yes. The calculator uses real calendar month lengths and correctly handles leap years, including February 29.

Can I swap the start and end dates?

Yes. Click the swap button between the two date inputs to instantly reverse the start and end dates.

Is my data stored anywhere?

No. All calculations happen entirely in your browser. No dates are sent to any server or stored anywhere.