Unix Timestamp Converter

Turn epoch seconds or milliseconds into a readable ISO 8601 date, or convert a date into a Unix timestamp for logs, APIs and databases.

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How to use it

  1. Paste a timestamp like 1767225600, or a date like 2026-01-01T00:00:00Z.
  2. Click To date or To unix (leave the input empty for the current time).
  3. Copy the converted value.

Frequently asked questions

Seconds or milliseconds?

Both work. Values below 10^12 are treated as seconds, larger ones as milliseconds (JavaScript-style).

Which time zone is used?

Unix time is always UTC. Results are shown as ISO 8601 in UTC (the trailing Z).

Is it free, and is my data uploaded?

It's free with no sign-up, and it runs entirely in your browser — your input is never sent to our servers.

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