Free online Date Difference perform its specific task efficiently.

Find the exact duration between any two dates

How many days between dates? Our duration calculator finds the exact time span in days, weeks, months, or years. Useful for project planning, tracking contract lengths, event scheduling, or simple curiosity. For detailed age calculation (years, months, days), try our Age Calculator.

Keyboard shortcuts:

  • •Ctrl+EnterCalculate difference
  • •EscClear dates
  • •TabNavigate between fields
How to Use This Tool

Calculating Date Differences

  1. 1

    Enter the start date using the date picker

  2. 2

    Enter the end date using the date picker

  3. 3

    Choose your preferred unit of measurement

  4. 4

    Click Calculate or press Ctrl+Enter

Understanding Results

  1. 1

    Days show exact number of days between dates

  2. 2

    Weeks round to the nearest week

  3. 3

    Months account for varying month lengths

  4. 4

    Years show complete years between dates

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