Date Calculator

Calculate the difference between two dates, or add/subtract days from a date. Find out how many days, weeks, months, or years between dates.

Today:
→
0 days
Enter two dates to calculate the difference
-
Select a date and enter days to add or subtract

Features

  • Calculate exact days between any two dates
  • View breakdown in years, months, weeks, and days
  • Count weekdays (business days) between dates
  • Add or subtract days from a specific date
  • Quick-add buttons for common periods

Use Cases

  • Calculate age in days
  • Project deadline planning
  • Count down to an event
  • Calculate due dates
  • Business day calculations

Keyboard Shortcuts

  • 1 - Switch to Date Difference tab
  • 2 - Switch to Add/Subtract tab
  • T - Set today's date
  • Ctrl + Shift + C - Copy result
  • Escape - Reset all