What is the Date Difference tool?

Calculate the number of days between two dates. This free online tool is available at NumbersChecker with no login required.

Is the Date Difference tool free?

Yes, the Date Difference tool is completely free to use at NumbersChecker. No account or installation is needed — results are instant.

How do I use the Date Difference tool?

Enter your input into the form at https://numberschecker.com/tool/date-diff, click Run, and the result appears instantly. Click any result value to copy it to your clipboard.

Is there an API for the Date Difference tool?

Yes. Send a POST request to https://numberschecker.com/api/date-diff with your input as a JSON body. The API is free and requires no authentication.

Date & Time daysbetweenduration

Date Difference

Calculate the number of days between two dates.

About the Date Difference Tool

Calculate the number of days between two dates. This free online tool runs entirely in your browser — no login, no installation, and no data is stored.

This tool is part of the Date & Time category on NumbersChecker. Browse all Date & Time tools or explore all 139 tools.

Related: days · between · duration

API usage

POST /api/date-diff
Content-Type: application/json

{
  "text": "your input here"
}