Unix Timestamp Converter

Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates and back — seconds or milliseconds, UTC and local.

Your data never leaves your browser — all processing happens locally on your device.

Convert

About this tool

The Unix Timestamp Converter translates epoch seconds or milliseconds into readable dates and vice versa. Developers use it to debug API responses, logs and database records. See ISO UTC and local timezone output instantly. All conversions run in your browser.

How to use the Unix Timestamp Converter

  1. 1

    Pick a direction

    Convert timestamp to date, or date to timestamp.

  2. 2

    Enter a value

    Type an epoch number or pick a date and time.

  3. 3

    Read the output

    Copy seconds, milliseconds, ISO UTC or local datetime.

Frequently Asked Questions

Seconds or milliseconds?

Choose the unit when converting timestamps. Most APIs use seconds; JavaScript Date uses milliseconds.

What timezone is shown?

UTC ISO format plus your browser's local timezone for the same instant.

Is my data stored?

No. Conversions happen locally.

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