Certified tool
Date Duration Calculator
Break a date span into years, months, weeks, and days.
Calendar duration
4 years, 2 days
From Feb 29, 2020 (2020-02-29) to Mar 1, 2024 (2024-03-01).
1462 total calendar days · 208 weeks and 6 days.
Assumptions
- Years and months use calendar addition with end-of-month clamping, then leftover days.
- Weeks are derived from the absolute calendar-day span.
- A reversed range keeps unsigned parts and marks direction as backward.
- This is a date-span breakdown, not an elapsed-hours timer.