Unix Timestamp Converter
Convert Unix timestamps in seconds or milliseconds to local time, UTC, ISO 8601 and a relative phrase, or turn a date back into a timestamp.
Good to know
- Timestamps are interpreted as seconds unless the value is 11 digits or more, which is treated as milliseconds.
Common questions
Does it read seconds or milliseconds?
Values with 11 or more digits are treated as milliseconds; shorter values as seconds. The page states which it used.
Is the Unix epoch supported?
Yes. A timestamp of 0 resolves to 1 January 1970, 00:00 UTC.
Why is local time different from UTC?
Local output uses your browser time zone, including daylight saving rules for that date.
Is this tool really free?
Yes. There is no account, no paywall and no usage limit. Tools App is funded by aumenso, the studio behind it.
Is anything I enter uploaded?
No. The tool runs in your browser tab; what you enter is never sent to us and never stored.
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