Date Difference Calculator
Measure the exact span between two dates — total days plus a broken-down years/months/days view.
Difference
90 days
In weeks
12.9
Calendar span
0 years, 2 months, 29 days
How to use the Date Difference Calculator
- 1Enter the start date
- 2Enter the end date
- 3See days, weeks and the full breakdown
Frequently Asked Questions
Does the count include the end date?
By default it shows the difference (exclusive of the end day). Add 1 if you need an inclusive day count, e.g. for hotel nights.
Can I count days until a future event?
Yes — set the start date to today and the end date to your event. Negative values mean the date has passed.