About Days Between Dates
Enter two dates to get the exact number of days between them. Useful for project planning, countdowns, or any date difference. The calculation uses date-only values and runs entirely in your browser.
Frequently Asked Questions
How are days counted?
We count the number of full days between the start and end date. The start date is day 0; the next day is 1, and so on. So Jan 1 to Jan 2 is 1 day.
Is my data sent to a server?
No. The calculation happens in your browser. No dates are uploaded.
What if I swap start and end?
We show a positive number of days. If the end date is before the start date, we use the absolute difference so you always get "how many days between these two dates."