SEO Report Tools

Webmaster Utilities · Runs in your browser · Free

Unix Timestamp Converter

Convert Unix timestamps (seconds or milliseconds) to dates and dates to timestamps.

What this tool does

Translates between epoch time and human-readable dates in UTC and local time, and shows how far from now the moment is.

Who should use it

Developers reading logs, caches and API responses.

How it works

Pure digits are treated as seconds (below 100 billion) or milliseconds; other text is parsed as a date. Outputs ISO 8601, UTC string and local time.

How to use it

  1. Enter or paste timestamp or date in the form.
  2. Use "Load example" if you want to see how input should look.
  3. Press the run button. Processing happens instantly in your browser.
  4. Review the result panel, then copy or download the output if the tool offers it. Use Reset to start over.

Practical example

1767225600 is 2026-01-01T00:00:00.000Z.

Understanding the results

Local time uses your device time zone.

Limitations

Date strings without a time zone are interpreted by the browser and may differ between browsers; use ISO 8601 with Z.

Accuracy and report transparency

Results are computed in your browser from exactly what you enter. Deterministic steps (counting, parsing, encoding, validation) are verified by an automated test-suite with known answers. Where a method is a heuristic, the result panel says "estimated". No external data is used and nothing is invented.

Privacy

Your input never leaves your device for this tool. We count anonymous events (tool opened, run, copied) without storing what you typed. See the Privacy Policy.

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Frequently asked questions

What is Unix time?

The number of seconds since 1 January 1970 UTC, ignoring leap seconds.

Is my data sent to your server?

No. This tool runs entirely in your browser, so the text or files you enter stay on your device. We do record anonymous counts of how often each tool is opened or run (no input data) to see which tools are useful.

How accurate are the results?

Counting, parsing, encoding and validation steps are deterministic and covered by automated tests with known answers. Anything based on a heuristic is labelled "estimated" in the result panel.

Is this tool really free?

Yes. There is no account, limit or paid plan. The site is supported by advertising, which is disclosed on our Advertising Disclosure page.

References