Date Difference Calculator
Calculate the number of days, weeks, months, years, and business days between two dates.
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Result
Enter your details on the left, then press Calculate.
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Frequently asked questions
Does the business days count include holidays?
No. Business days here are defined as Monday through Friday. Federal or state holidays are not excluded — for payroll, project planning, or court deadlines, check the relevant holiday calendar separately.
Why are the total days and the years/months/days view different?
They describe the same duration in two ways. Total days is a single integer. Years/months/days breaks that integer into calendar units, where months are variable length (28-31 days), so the conversion is not a fixed ratio.