Unix Timestamp Converter
Turn a Unix timestamp into UTC, ISO 8601, and local date and time, with seconds or milliseconds input, plus a plain-English age and weekday.
How to use
- Paste a Unix timestamp.
- Choose whether the value is in seconds or milliseconds.
- Read the UTC, ISO, and local lines.
A Unix timestamp counts seconds since the epoch at 1970-01-01T00:00:00Z. This converter reads either seconds or milliseconds and writes the same instant in UTC, ISO 8601, and your local time zone.
Output
Paste or type something above.
Questions about unix timestamp converter
- Seconds or milliseconds?
- Check the digit count. A value near 1.7 billion with ten digits is seconds, while thirteen digits is milliseconds.
- Why is my local time different from UTC?
- The local line uses the time zone of the device you are on. The UTC and ISO lines are the same everywhere.
- What about negative timestamps?
- They are valid and mean a moment before the epoch, which is what a few systems use for dates before 1970.
Related tools
- Timestamp Converter Convert a date and time between ISO 8601, UTC, local time, and Unix seconds and millisecon...
- Unix Timestamp Converter Turn a Unix timestamp into UTC, ISO 8601, and local date and time, with seconds or millise...
- JWT Decoder Read the header and claims of a JSON Web Token, see the algorithm, subject, issued time, a...