Days Between Dates Calculator
Calculate the number of days between two dates.
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Ctrl+Enter
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Days
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Weeks
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Months
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Frequently Asked Questions
Does this count both the start and end date? +
By default the calculator counts the days between the two dates, not including the start date. If you need to include both endpoints, add 1 to the result.
How are months calculated when dates span partial months? +
Months are calculated using calendar months. The calculator counts complete months first, then adds remaining days. For example, Jan 15 to Mar 10 is 1 month and 23 days.
Can I calculate dates in the past or future? +
Yes. Enter any two dates in any order. The calculator always returns a positive result regardless of which date comes first.
How does this handle leap years? +
Leap years are handled automatically. February 29 is counted correctly in leap years, so calculations spanning leap years will include the extra day.
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