Date Duration Calculator – Days Between Two Dates

Date Duration Calculator – Days Between Two Dates

Calculate exactly how many days, weeks, months and years lie between any two dates. Perfect for counting down to a trip, a deadline, a birthday or an anniversary.

This calculator runs entirely in your browser. Your dates never leave your device.

Popular date calculations

  • How many days until my birthday, trip or wedding
  • Days between two dates for project deadlines
  • How many weeks old is my baby or puppy

More free tools are on the way — suggest a tool you'd like to see next.

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