DATE & TIME

Unix Timestamp Converter

Go from Unix time to a readable date, and back. Always clear on UTC.

YOUR WORKSPACE
INPUT
Your input stays in this tab · Up to 500,000 characters

A little clarity, coming right up.

Your result will appear here.
A clean result. No extra steps.
Processed here. Never uploaded.
Tip: Ctrl + Enter or ⌘ + Enter to run.
THE QUICK START

One less thing on your list.

  1. 01

    Choose Unix seconds, Unix milliseconds, or an ISO date.

  2. 02

    Enter a timestamp or an ISO date with an explicit time zone.

  3. 03

    Convert to see the UTC date and both Unix units.

A LITTLE CONTEXT

About this tool

Convert between Unix timestamps and explicit ISO 8601 dates. Output includes a UTC ISO date, Unix seconds, and Unix milliseconds to make unit differences visible.

ISO date inputs must include Z or a numeric time-zone offset. Leap seconds are not represented by JavaScript dates. Out-of-range and invalid calendar dates are rejected.

GOOD TO KNOW

A couple of useful answers.

Does the converter guess seconds or milliseconds?+

No. You choose the unit to avoid silently interpreting a timestamp incorrectly.

Which time zone does the output use?+

The ISO date always uses UTC, marked by Z. An input offset is converted to UTC.

This tool runs in your browser. Your input is not uploaded or saved by Saanvi.

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