Paste a Unix timestamp from logs or APIs to see the instant in your locale and as ISO UTC. Ideal when you need to read epoch time without opening a terminal.
Timestamp
Seconds use up to 10 digits for recent dates; millisecond values are longer.
Result
Related tools
How it works
The number is read as an integer or decimal; fractional seconds are truncated when converting to a JavaScript Date.
Large absolute values are interpreted as milliseconds; smaller ones as seconds so typical epoch values work without extra zeros.
Unix time
Unix time counts seconds from the Unix epoch (midnight UTC on 1 January 1970). Your browser applies your local time zone for the first line.
Limits
JavaScript dates cover roughly ±285616 years around 1970; extreme inputs may show as invalid.
Common questions
- Seconds or milliseconds?
- If the absolute value is at least 100 billion, it is treated as milliseconds.
- Negative timestamps?
- Yes, for times before 1970.
- Is data sent online?
- No. Parsing happens only in this page.
- Leap seconds?
- JavaScript follows the system clock; displayed civil time follows your environment.