Date Difference Calculator

Calculate how many days, weeks, months and years lie between any two dates.

How to use

Pick two dates; result updates instantly.

Formula

Calendar difference; accounts for month lengths and leap years.

Examples

  • 2026-01-01 to 2026-12-31 → 364 days

Important notes

Uses Gregorian calendar.

Frequently asked questions

Does it include leap years?

Yes, full calendar arithmetic.

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