Days Between Dates Calculator
Use this days between dates calculator to find the exact number of calendar days between any two dates. You can also include both the start and end date when needed.
How to Use the Days Between Dates Calculator
Select a start date and an end date. The calculator returns the calendar-day difference, with an optional inclusive mode that counts both boundary dates.
Practical Example
March 1 to March 10 is 9 days by standard date difference. Counting both March 1 and March 10 gives 10 days.
Factors That Affect the Result
This tool counts calendar days. Business-day rules, public holidays, local deadlines and time-zone-specific timestamps can require a different method.
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Frequently Asked Questions
Are weekends included?
Yes. The result uses calendar days.
Does it handle leap years?
Yes. Real calendar dates automatically account for leap years.
What does inclusive counting mean?
It adds one day so both the start and end dates are counted.