Free planning tool

How many days are between two dates?

Last reviewed .

Count the calendar days between two dates. Free, runs in your browser, no time-zone surprises. See how the count works, then print or save the result.

Planning aid. Not a legal, tax, or visa determination.

Use the tool

The calculator needs JavaScript. The worked example and sources are available below.

Worked example
Step or fieldResult
days185

How is the result worked out?

Both dates are read as calendar dates and anchored to noon UTC, then the difference is divided by the length of one day. Anchoring to noon means a clock change on either date cannot shift the count. The end boundary is excluded, so March 15 to March 16 is one day.

Values stay in this browser. Permalinks store state only in the URL fragment.

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