Paste an Epoch, Read the Date — in Seconds.

Paste a Unix timestamp — seconds or milliseconds, auto-detected — or a date, and get the other side instantly: local time, ISO 8601, and how long ago it was. Nothing leaves your browser.

Unix Timestamp Converter

Built for developers parsing log lines, API responses, and JWT exp claims. Paste either side and get the other instantly — units auto-detected, UTC and your local time side by side. Fully client-side — no network calls, no storage.

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Current Unix timestamp in seconds, ticking live — the “what goes in my cron line” answer. The ‘now’ ticker and relative badges use your device’s clock — if the clock is off, they’re off with it.

Got an exp value from a decoded JWT? Paste it straight in — or decode the whole token in the JWT Decoder.

How to use:

  1. Paste an epoch or any text containing one — the first 10/13/16/19-digit number is detected and read as seconds, milliseconds, microseconds, or nanoseconds. The assumed unit is shown, and you can override it to seconds or milliseconds
  2. Outputs: human-readable local time (with your named timezone), ISO 8601 in UTC and in local time, and the epoch restated in both seconds and milliseconds
  3. Going the other way: pick a date with the date picker (any year — pre-1970 and negative epochs work) or hit Now
  4. The live ticker shows the current epoch in seconds; the relative badge (“2 days ago”) is based on your device clock
  5. Every value has a one-click copy button — nothing is selected, uploaded, or stored

Everything runs in your browser: no network calls, no analytics on your input, nothing stored. Relative times and the “now” ticker use your device clock — that is the only clock involved.