Date Difference Calculator
Count the days, weeks or months between two dates.
Difference
1y 5m 28d
- Total days
- 544 days
- Total weeks
- 77 weeks + 5 days
- Business days (Mon–Fri)
- 388 days
How this is calculated
Calendar walk: years → months (real lengths) → days, in UTC
2025-01-15 → 2026-07-13
1y 5m 28d exactly · 544 total days
Business days count Mon–Fri only — public holidays vary by country and aren’t included.
Computed on your device — nothing is sent anywhere.
How it works
Count the days, weeks or months between two dates. Runs 100% in your browser, so your files never leave your device. Free, fast, no signup.
Questions about date difference calculator
Yes — no watermark, no daily cap, no signup. Pro raises the file-size and batch limits, but the tool itself is not gated.
No. This tool runs entirely in your browser. Open your network inspector and watch while it works — there are no file uploads, because there is no upload endpoint.
Up to 10 files at 15 MB each. Everything runs in your browser, so the real ceiling is your device’s memory — the cap keeps a large file from exhausting the tab.