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Unix Timestamp Converter — Epoch Time Tools

Convert Unix timestamps to readable dates and back

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Features

  • ms & seconds
  • ISO strings
  • Two-way conversion
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This tool runs on your device — your files and inputs never go anywhere.

How to Use Unix Timestamp Converter

Convert Unix timestamps to readable dates and back No signup, and nothing gets uploaded for most use.

  1. 1

    Enter your numbers in the input fields.

  2. 2

    Choose the calculation options or frequency.

  3. 3

    The result updates instantly as you type.

  4. 4

    Review the breakdown, chart, or schedule, and copy the answer.

Why you might like it

  • Nothing to upload — the work happens on your device.
  • Free with no signup, no watermarks, and no daily limits.
  • Works in any modern browser on any device — nothing to install.
  • Usually done in a few seconds, so it doesn't get in your way.
Try Unix Time

Frequently Asked Questions

What is the Unix epoch?

The Unix epoch is January 1, 1970 at 00:00:00 UTC. Unix timestamps count the milliseconds (or seconds) that have elapsed since that instant.

Why does the same timestamp show different local times?

A timestamp is an absolute instant in time. Your local time zone and daylight saving rules determine how that instant is displayed on your clock.