Calculate the difference between two dates, add or subtract days, or convert timestamps. Supports age calculation, working-days mode and multiple output formats.
Select the Date Difference tab, enter a start and end date, then click Calculate. The tool shows the exact difference in years, months, weeks, and total days.
Yes. Select the Age Calculator tab, enter your date of birth and an as-of date (defaults to today), then click Calculate to see your exact age and days until your next birthday.
Select the Add / Subtract tab, enter a base date and a number of days (or weeks, months, years), choose Add or Subtract, and click Calculate. The result shows the new date.
Select the Convert tab, enter a value and choose Days as the source unit. The tool instantly shows the equivalent in milliseconds, seconds, minutes, hours, weeks, and months.