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Timestamp Converter

Convert between Unix timestamps and human-readable dates, in ISO 8601, UTC and your local time zone.

Unix timestamp (seconds)
0
Unix timestamp (milliseconds)
0
ISO 8601
1970-01-01T00:00:00.000Z
UTC
Thu, 01 Jan 1970 00:00:00 GMT
Your local time
Thu Jan 01 1970 08:00:00 GMT+0800 (Indochina Time)

Everything is converted entirely in your browser. Nothing is sent to a server.

How to use this tool

  1. 1Enter a Unix timestamp (in seconds), or pick a date and time.
  2. 2Both fields stay in sync automatically.
  3. 3Copy the ISO 8601, UTC, local time or Unix timestamp you need.

Features

  • Converts Unix timestamps to and from human-readable dates.
  • Shows ISO 8601, UTC and your local time zone side by side.
  • One-click "Use current time" and copy buttons for each format.
  • No account or sign-up required.

Privacy

Dates are converted entirely in your browser. Nothing is sent to a server.

Frequently asked questions

Is this timestamp converter free?

Yes, and there is no limit on how many times you can use it.

What is a Unix timestamp?

The number of seconds since January 1, 1970, 00:00:00 UTC (the "Unix epoch") — a common way to store dates in databases and APIs.

Does it support milliseconds?

The main input is seconds (the standard Unix timestamp), but the results also show the equivalent value in milliseconds for convenience.

Is my data sent to a server?

No. All conversion happens locally in your browser.

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