Days Between Dates
Find out how many days there are between two dates — for deadlines, birthdays, notice periods or project plans.
This tool runs entirely in your browser; what you enter is never sent to our servers.
How to use it
- Pick a start and an end date; the “Today” button fills in today's date.
- Tick the box if the end date should count too.
- The number of days and its weeks breakdown appear instantly — copy it with “Copy”.
How we count
The two dates are compared as calendar days, so time zones and daylight-saving changes never affect the result, and leap years with 29 February are handled automatically. By default the start date counts and the end date doesn't: from 1 January to 15 January is 14 days. If you're working out the length of a holiday or an event that includes both days, tick “Include the end date” to get 15. Example: 28 February 2024 to 1 March 2024 is 2 days (2024 is a leap year); the same dates in 2023 are 1 day apart.