Date & time

ISO 8601 Date Converter

Validate an ISO 8601 date and convert it to standard date representations. Nothing you enter leaves your browser.

Enter an ISO 8601 date

Result

Your result will appear here.

Simple by design

Get the answer, without the clutter.

FormatCalc is built for quick work. This iso 8601 date converter runs entirely on your device, so private text and data stay private.

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Enter or paste your information.

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Transform it with one click.

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Copy, use, or download your result.

Common questions

Using the ISO 8601 Date Converter

Is the ISO 8601 Date Converter free to use?

Yes. FormatCalc's ISO 8601 Date Converter is free to use with no account required.

Is my data private when I use the ISO 8601 Date Converter?

Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.

How do I use the ISO 8601 Date Converter?

Paste or type your input, select any available options, and choose Convert date. You can then copy the result.