Date Difference Calculator
Pick a start date and end date to instantly see the difference in days, weeks, months, years, and business days (weekdays only).
— Total days
— Weeks
— Months
— Years
— Business days
— Weeks + remainder
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Frequently Asked Questions
What counts as a business day?
This calculator counts Monday through Friday as business days, excluding Saturdays and Sundays. It does not account for public holidays, which vary by country and region.
Are both the start and end dates included in the count?
The day count (total days, weeks) counts the elapsed days between the two dates — the end date minus the start date. Business days count is inclusive of both the start and end dates if they fall on weekdays.
What if I enter the dates in the wrong order?
No problem — the calculator always returns a positive result regardless of which date is entered first.