Date Difference Calculator
Find the exact interval between two dates — both calendar (y/m/d) and total counts.
- Days2,434
- Weeks348
- Months80
- Years6.7
Results are estimates for general information only and are not professional financial, medical, tax, or legal advice. Read the full disclaimer.
How it works
Total days = (end − start) / 86,400,000 ms. Calendar Y/M/D via component borrowing.
2020-01-01 to 2024-10-01 → 4y 9m 0d (1,735 days).
Frequently asked questions
- Are endpoints inclusive?
- The result counts full days elapsed — end minus start.
- Handles reversed dates?
- Yes — the sign flips.
- Business days?
- Not in this version — this counts calendar days.
- Time zones?
- Uses local dates without a time component.
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