Конвертер Unix-времени

A Unix timestamp counts seconds since 1 January 1970 UTC. It is compact and timezone-free, which is exactly why logs, APIs and databases use it — and exactly why it is unreadable to humans. This converter goes both ways and shows UTC, your local time and a plain-language relative time side by side.

Как пользоваться

1. Paste a timestamp into the left field. Ten digits are read as seconds, thirteen as milliseconds — the tool detects which.
2. Or pick a date in the right field to convert in the opposite direction.
3. Read the output block: seconds, milliseconds, ISO 8601, UTC, your local time, and how long ago it was.
4. Press Now to stamp the current moment when you just need a value to paste.

Частые вопросы

Seconds or milliseconds — how do I tell?

Length. A ten-digit number is seconds, a thirteen-digit number is milliseconds. Mixing them is the single most common bug in this area and puts your date roughly fifty thousand years off.

Why does the local time differ from a colleague's?

The timestamp itself has no timezone. Local time is rendered using your device settings, so two people converting the same value correctly see different wall-clock times.

What is the 2038 problem?

Systems storing the timestamp in a signed 32-bit integer overflow on 19 January 2038. Anything using 64-bit integers, including JavaScript, is unaffected.

Does it handle dates before 1970?

Yes. Timestamps before the epoch are negative, and the converter accepts them.