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What is Date Difference?

Calculating the exact number of days, weeks, months, or years between two dates is tricky because months have different lengths and leap years add complexity. DailyDevTools' Date Difference Calculator handles all this automatically — enter any two dates and instantly get the difference in days, weeks, months, years, hours, and minutes. Useful for project planning, deadline tracking, and age calculations.

How to use Date Difference

1. 1Select the start date and end date using the date pickers
2. 2The difference is calculated instantly in days, weeks, months, and years
3. 3Toggle 'Exclude weekends' to count only business days between the two dates
4. 4Click Swap Dates to reverse the calculation direction

Frequently asked questions