Quick Tool Labs

Days Between Dates Calculator

Use this days between dates calculator to find the number of calendar days separating two dates. It can include or exclude the start date and end date based on how you want to count the range.

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Calculator

Selected days 0
Absolute difference 0
Full weeks 0

Select two dates to calculate the number of days between them.

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How this days between dates calculator works

This calculator compares two calendar dates and counts the number of days between them. You can choose whether the starting date and ending date are counted in the selected range.

Selected days = all calendar dates in range, based on your start/end inclusion settings

It is useful for travel planning, contract timelines, billing cycles, event countdowns, and any situation where you need an exact number of days between two dates.

Examples

Example 1

From April 1 to April 5, the selected result is 5 days when both dates are included.

Example 2

From April 1 to April 5, the selected result is 4 days when you exclude the start date and include the end date.

Example 3

From February 27 to March 2 in a leap year, the leap day is counted automatically.

Frequently asked questions

Does this calculator account for leap years?

Yes. Leap years and leap days are handled automatically because the calculation uses real calendar dates.

Can I count both the start date and end date?

Yes. Use the checkboxes above the results to choose whether each date should be counted.

What if my dates are reversed?

The calculator will automatically reorder the dates and still give you the correct result.

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