Date Difference Calculator
Calculate the exact number of days, weeks, months, and years between two dates. Fast, free, and fully client-side. Nothing is uploaded to a server.
How the Date Difference Calculator Works
Calculates the exact duration between two calendar dates in years, months, days, weeks, hours, and total count of elapsed days.
Usage Example
Between Jan 1, 2026 and Dec 31, 2026: 364 days (52 weeks or 11 months, 30 days).
Frequently Asked Questions
Can it include or exclude the end date?
Yes, toggle the option to include or exclude the final date in total day counts.