Date Difference Calculator
Find out exactly how many days lie between two dates, for notice periods, project timelines, interest calculations or trips.
Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Pick a date.
How to use Date Difference Calculator
- Pick the start date.
- Pick the end date.
- Tick “Include the end date” if both days should count, for example for leave.
Frequently asked questions
Should I include the end date?
For durations such as leave or hotel nights count differently. From 1 to 3 March is 2 days apart, but 3 days if you count both dates.
How many days are there between two dates in different years?
The calculator handles leap years automatically, so the count is exact across any number of years.
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