Dev-data · Free

Timestamp Converter

Unix epoch ↔ date — ISO 8601, UTC and timezone.

Stays on your deviceFree
Type a Unix timestamp or a date to convert.
Current Unix time

The Timestamp Converter turns a Unix epoch into a human-readable date — and back — entirely in your browser. Paste a timestamp in seconds, milliseconds or microseconds and it auto-detects the unit, or paste an ISO 8601 or RFC 2822 date and it reads that instead. You get every format at once: ISO 8601 in UTC, a plain UTC string, the same instant in your local timezone (or any IANA zone you pick), RFC 2822, a friendly relative phrase like “3 hours ago”, and the epoch echoed back in seconds, milliseconds and microseconds — each with a one-click copy button. A live ticker shows the current Unix time. Nothing is uploaded; the conversion runs on your device with the browser’s own date engine, so it’s instant and private. Unix time ignores leap seconds by definition, and dates before 1970 are handled as negative timestamps.

How it works

  1. Paste a Unix timestamp (seconds, milliseconds or microseconds) or a date string.
  2. The unit is detected automatically — the hint shows what it read.
  3. Read every format at once, or pick a timezone for the local view.
  4. Click Copy on any field. Everything happened in your browser.

FAQ

How it works & more

More Dev-data tools

Free

Base64 Encoder

Encode & decode Base64 — in your browser, nothing uploaded.

Free

Hash Generator

MD5/SHA-256/512 hashes of text or files — in your browser.

Free

JSON Formatter

Format, validate & minify JSON — in your browser.