Convert Unix timestamps to dates and back.

Conversions run in your browser using your device clock and time zone — nothing is sent to the server.

Current Unix time
0
Timestamp → Date
Enter a numeric Unix timestamp.
ISO 8601 (UTC)
UTC
Local
RFC 2822
Relative
Date → Timestamp
Enter a valid date.
Seconds
Milliseconds
ISO 8601 (UTC)

About Timestamp Converter

The Timestamp Converter translates Unix timestamps into human-readable dates and back, entirely in your browser. A live clock shows the current Unix time in both seconds and milliseconds, and every conversion uses your device’s clock and time zone — nothing is sent to a server.

Feed it an epoch value and you get the moment expressed five ways: ISO 8601 in UTC, plain UTC, your local time, RFC 2822 and a relative phrase like “3 hours ago”. Millisecond timestamps (13 digits) are recognized automatically, so values copied from JavaScript or log files just work.

The reverse direction is just as quick: enter a date and time to get the corresponding Unix timestamp in seconds and milliseconds. Every output line copies to the clipboard with a single click, and a “Use now” shortcut drops in the current moment.

How to use Timestamp Converter

  1. Glance at the live current Unix time, shown in seconds and milliseconds.
  2. Paste an epoch value — 10-digit seconds or 13-digit milliseconds are both detected.
  3. Read the result as ISO 8601 (UTC), UTC, local time, RFC 2822 and a relative phrase.
  4. For the reverse, enter a date and time to get its Unix timestamp in seconds and milliseconds.
  5. Click any output line to copy it.

Frequently asked questions

The number of seconds elapsed since 1 January 1970 00:00:00 UTC — the epoch. It is the standard machine representation of a moment in time, used in databases, APIs, JWTs and log files because it is time-zone independent.

Current timestamps in seconds have 10 digits; in milliseconds they have 13. The converter detects 13-digit values automatically and divides by 1000, so timestamps copied from JavaScript’s Date.now() convert correctly.

Your device’s time zone, read directly from the browser. The UTC and ISO 8601 lines are always UTC, so you can compare both without doing mental offset math.

No. Conversions run in your browser using your device clock, so the tool works instantly and your queries are never logged anywhere.

Yes — free, unlimited and no account needed.


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