How to use the days between dates calculator
This days between dates calculator gives you the exact number of days between two calendar dates. Choose the start date and the end date using the date pickers, then click "Calculate days" to see the result. The difference is always shown as a positive number (the absolute span), so the order of the two dates does not matter. The tool also shows the span in approximate total hours and minutes so you can see the same period in different units.
Knowing how many days lie between two dates is useful for many tasks. You might be counting days until a trip, a deadline, or an event; checking how long a project or subscription lasts; or figuring out how many days you have been in a job or a lease. Teachers and students use it for assignment due dates; travelers for trip length; and anyone for anniversaries or countdowns. The calculator uses the calendar day as the unit, so leap years and different month lengths are included automatically. The result is the number of full days between the two dates—the start and end dates are not counted as part of the span by default (if you need inclusive counting, add 1 to the result for “days from start through end”).
The calculator runs entirely in your browser. There is no sign-up, no download, and no delay. It is designed to be mobile-friendly: the two-column layout stacks on small screens, date inputs are easy to use on touch devices, and the result appears next to your selection. Use it for quick checks or for planning—whether you need the count in days only or also in hours and minutes.
Bookmark this page for quick access whenever you need to count days between two dates. This free days between dates calculator provides fast, clear results on any device.