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Timestamp Converter

Convert Unix time to dates and back.

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How to use Timestamp Converter

  1. Paste a Unix timestamp in seconds or milliseconds, or type a date.

  2. Read the ISO 8601, UTC, local and relative-time equivalents.

  3. Copy the format you need, or grab the current timestamp with one click.

Frequently Asked Questions

Seconds or milliseconds — which do I have?

A ten-digit number is seconds, the format used by Unix and most APIs. Thirteen digits are milliseconds, which is what JavaScript's Date.now() returns. Both are detected automatically.

Which time zone is shown?

Both. UTC is shown alongside your device's local time zone, so you can check an API response against what a user in your region would have seen.

What is the year 2038 problem?

Systems that store Unix time in a signed 32-bit integer overflow in January 2038. This converter uses 64-bit numbers, so dates far beyond that are handled fine.

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