Date Difference Calculator
Days, weeks, months and years between any two dates.
How to use the Date Difference tool
- Enter your date difference in the fields above.
- Adjust any slider or type an exact number — the answer updates as you go.
- Copy the result and close the tab. Nothing you entered was sent anywhere.
About the Date Difference tool
Pick two dates to see the difference in days, weeks, months and business days. The end date is exclusive in the day count, matching most deadline calculations.
Weekend-aware business day counting excludes Saturdays and Sundays and ignores public holidays.
Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.
Embed this tool
Customize and copy an iframe. Linking back helps both sites.