Days Between Dates
Enter two dates and get the number of days between them. We count calendar days; option to exclude or include the start/end day can vary by tool.
Days Between Dates
How it works
We convert both dates to timestamps, take the difference in milliseconds, and divide by 24*60*60*1000 to get days. Result is an integer (or rounded).
When to use it
Use it for project length, interest accrual, or how long until an event. Handy for contracts and deadlines.
Frequently asked questions
Are the dates inclusive?
Typically we count the difference so that same date = 0, next day = 1. Check the tool description.
What about time zones?
We use the date only; times are ignored unless the tool specifies otherwise.