Can I include the end date?

Yes. Turn on include end date when you want both selected dates counted.

Does it handle leap years?

Yes. The calculator uses real calendar dates and leap years.

Are times of day included?

No. This page compares date-only values at calendar-day precision.

Days Between Dates Calculator

Count the exact calendar days between two dates.

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Answer Ready

Choose dates to calculate.

Start date End date Include end date

Start date Operation Amount Unit

Date of birth Age on

Start date End date Include end date

Open countdown

How the day count works

The calculator compares date-only values at midnight UTC, so daylight saving time and local time-of-day changes do not add or remove an hour. By default it counts the gap from the start date up to, but not including, the end date. Turn on Include end date when both selected dates should count as days in the range.

Scenario	Default result	With end date included
Monday to Tuesday	1 day	2 days
Monday to next Monday	7 days	8 days
Same start and end date	0 days	0 days

Related date tools

Date calculator Age calculator Business days Countdown

Questions

Can I include the end date?: Yes. Turn on include end date when you want both selected dates counted.
Does it handle leap years?: Yes. The calculator uses real calendar dates and leap years.
Are times of day included?: No. This page compares date-only values at calendar-day precision.

Use it with confidence

Quick operating notes for this browser-based tool.

Keyboard: Use Tab to move through controls and Enter or Space to activate them. This tool has no global shortcuts.
Mobile: Controls are touch-sized and stack on narrow screens. Rotate the device only when a wider view helps.
Offline: The calculation runs in your browser. The route must have loaded once before it can reopen from cache without a connection.
Browser limits: Date results use local calendar values in the browser; confirm timezone and date inputs before relying on the answer.