Developer

Unix timestamp converter

Convert Unix timestamps to readable dates and back. Supports ms and seconds.

Unix timestamp → Human date

UTC

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Local time

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ISO 8601

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Relative

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Human date → Unix timestamp

Seconds

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Milliseconds

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100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Unix timestamp converter

01 Paste or type your input into the text field provided
02 The output generates instantly as you type
03 Click Copy to send the result straight to your clipboard

Frequently asked questions

Common questions about Unix timestamp converter.

Is Unix timestamp converter free to use?

Yes, Unix timestamp converter is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Unix timestamp converter upload my data to a server?

No. Unix timestamp converter runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Unix timestamp converter on my phone or tablet?

Yes. Unix timestamp converter is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Does Unix timestamp converter work without an internet connection?

Yes. Once the page has loaded, Unix timestamp converter works fully offline — all processing is done locally in your browser.

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About Unix timestamp converter

A Unix timestamp is an integer representing the number of seconds — or milliseconds — elapsed since 1 January 1970 00:00:00 UTC, known as the Unix epoch. Timestamps are ubiquitous in software: they appear in API responses, database `created_at` fields, server log files, JWT expiration claims, and event tracking systems. The Unix Timestamp Converter translates between human-readable date-times and Unix timestamps instantly, supporting both second-precision (10-digit) and millisecond-precision (13-digit) formats.