Date Difference Calculator
Count the days, weeks and months between two dates.
About the Date Difference Calculator
The Date Difference Calculator counts the days, weeks, months and years between two dates. It is useful for working out an age, a deadline, a notice period, or simply how long ago something happened.
Frequently asked questions
It counts the span between the two dates, so the gap is the number of days from one to the other. For an inclusive count of days, add one to the result.
Months vary in length and years include leap days, so months and years are shown as helpful approximations. The day count is the exact, reliable figure.