Date Difference Calculator

Calculate the days, weeks, months and years between two dates.

Utility ToolsDate & Time

Enter a start and end date to see the difference in years, months, days, total days and weeks.

Calculated locally in your browser — nothing is sent to our server.

How This Tool Works

Calculates a calendar-aware breakdown (years, months, days) the same way you’d count on a calendar — not just a division of total days — alongside the plain total-days and total-weeks figures. Dates are compared as calendar dates, unaffected by your browser’s timezone.