TOOL · 53 · Data & Utility

Unix Timestamp Converter

Convert Unix timestamps (seconds or ms) to and from ISO 8601 and human-readable dates.

In short
Unix Timestamp Converter converts between Unix timestamps (seconds or milliseconds) and ISO 8601 / human-readable dates — with a live current-time reference.

Processed 100% in your browser — your files never leave your device.

Live current time

1785192312

2026-07-27T22:45:12.878Z

Unix timestamp (s or ms)ISO 8601 (UTC)

Human readable

UTC: Mon, 27 Jul 2026 22:45:12 GMT

Local: Mon Jul 27 2026 22:45:12 GMT+0000 (Coordinated Universal Time)

Local ISO: 2026-07-27T22:45:12

Milliseconds: 1785192312000

How it works

Step · 01
Type a Unix timestamp (seconds or milliseconds) or an ISO date — both sides stay in sync.
Step · 02
The current time updates live, so you can grab a fresh timestamp with one click.
Step · 03
Everything is computed locally in your browser.

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Frequently asked questions

Seconds or milliseconds?: The tool auto-detects: values with 10 or fewer digits are treated as seconds, longer values as milliseconds.
Does it handle time zones?: The ISO output is UTC. The 'Local' line shows the same instant in your browser's time zone.
Are my files uploaded to a server?: No. Files are processed directly in your browser using JavaScript and WebAssembly. Nothing is uploaded to our servers, so your documents never leave your device.
Does it work on mobile?: Yes. The tools run in any modern browser on desktop, tablet, or mobile (Chrome, Edge, Safari, Firefox). Very large files may be slower on low-end phones.