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Date Difference Calculator

Calculate the difference between two dates in various units

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Start Date

End Date

Calculate business days (exclude weekends)

Tip: Enable "business days" calculation to count only weekdays, useful for project planning and work schedules.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.