Date Difference Calculator

Frequently asked questions

How is the difference between two dates calculated?

The tool counts the calendar days between the dates and also breaks the gap down into years and months, weeks and hours.

Does the count include both the start and end date?

No. It measures elapsed days, so the day after the start date counts as 1. Add one yourself if you need an inclusive count.

Does the order of the dates matter?

No. The result is always a positive duration, so you can enter the dates in either order.

Can I use it for deadlines and countdowns?

Yes. Put today in one field and the deadline in the other to see exactly how many days, weeks or months you have left.