Epoch time, made readable.
Paste a Unix timestamp in seconds or milliseconds to see the exact local date, UTC date, and ISO 8601 value. You can also choose a local date and convert it back into epoch seconds.
Seconds or milliseconds
Automatically recognizes common 10-digit seconds and 13-digit millisecond timestamps.
Local, UTC, and ISO
See the same instant in your device timezone, coordinated universal time, and ISO 8601.
Two-way conversion
Convert an epoch timestamp to a date or choose a date and get seconds and milliseconds.
Instant and local
All date calculations use built-in browser APIs with no network request.
Use this tool.
- Enter epoch timePaste a timestamp in seconds or milliseconds.
- Read every formatCompare local time, UTC, ISO, seconds, and milliseconds.
- Convert the other wayChoose a local date to produce its Unix timestamp.
Common questions.
What is a Unix timestamp?
A Unix timestamp counts elapsed seconds since January 1, 1970 at 00:00:00 UTC, excluding leap seconds.
Is my timestamp in seconds or milliseconds?
Most 10-digit present-day timestamps are seconds. Most 13-digit timestamps are milliseconds. This converter detects either format.
Why do local time and UTC differ?
They represent the same instant. Local time applies your device timezone and daylight-saving rules, while UTC uses a zero offset.
Does this converter account for my timezone?
Yes. The local result uses the timezone configured on your device; the UTC and ISO results remain timezone-independent.