Date Difference Calculator
Enter a start date and an end date to see the number of days between them. The result uses the actual calendar, including leap days. Useful for project timelines, rent periods, and event planning.
Days236
Weeks33.71
Formula
Days = (end − start) in milliseconds ÷ 86,400,000.
How to use this calculator
- Enter start and end as YYYY-MM-DD.
- Read days and weeks.
Examples
One week
1 Jan to 8 Jan is 7 days.
FAQ
Is the end date included?+
This count is the difference between the two midnights, so 1 Jan to 2 Jan is 1 day.
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