Date Difference Calculator
Pick two dates and this measures the exact span between them — broken into years, months and days, and totalled in months, weeks, days, hours and minutes. It works from local calendar dates, so daylight saving and timezones won't trip it up.
- 100% free
- Private & safe
- Runs in your browser
Read our complete guide: How to Calculate Business Working Days Between Two Dates
Why use Date Difference Calculator?
Date Difference Calculator works out the answer precisely from local calendar dates, so there are no timezone or daylight-saving surprises.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Exact difference computed on local calendar dates, with month-length and leap-year handling.
- Pick a start (from) date and an end (to) date.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Date Difference Calculator
- Pick a start (from) date and an end (to) date.
- See the difference in years, months and days.
- Review totals in months, weeks, days, hours and minutes.
- Swap the dates to measure any span.
Examples
- Time from a project kickoff to its deadline.
- How long until a future event.
Supported formats & limits
- Exact difference computed on local calendar dates, with month-length and leap-year handling.
Limitations
- Whole-day granularity; for hours/minutes between times, use the Time Duration Calculator.
- Order does not matter — the span is absolute.
Frequently asked questions
Does it handle leap years and month lengths?
Yes — the difference is computed on real calendar dates.
Does timezone affect the result?
No — it uses local calendar dates, so there is no timezone shift.
Can I go from a past to a future date?
Yes, in either direction; the span is the same.
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