Unix epoch ↔ human-readable date, with live current timestamp — all in your browser
| Detected as | – |
| Your local time | – |
| UTC | – |
| ISO 8601 | – |
| Relative | – |
| Unix seconds | – |
| Unix milliseconds | – |
| ISO 8601 (UTC) | – |
The number of seconds elapsed since 00:00:00 UTC on 1 January 1970 (the "epoch"). It's timezone-free, compact, and easy for computers to compare — which is why databases, logs and APIs use it everywhere.
Classic Unix time is in seconds (10 digits today); JavaScript and many APIs use milliseconds (13 digits). This tool auto-detects which one you pasted, and shows both when converting.
A timestamp is the same instant everywhere on Earth. Timezones only appear when you format it for humans — that's why we show your local time and UTC separately.
2026-07-15T09:30:00Z — the international standard text format for dates. The Z means UTC. Use it in APIs and documents to avoid the ambiguity of formats like 07/03/2026.
Systems storing Unix time in a signed 32-bit integer overflow on 19 January 2038. Modern 64-bit systems are fine for the next 292 billion years.
All conversions happen in your browser using your device's clock and timezone database. Nothing is sent to a server.