toolcubbyUnix Timestamp Converter
Convert a Unix epoch timestamp to a human date and back, instantly — privately, in your browser.
How to use
- Paste a Unix timestamp into the first box (seconds or milliseconds). The UTC and local dates appear instantly.
- Or pick a date and time in the lower box and click Convert to get its epoch value in seconds and milliseconds.
- Click Now to insert the current time.
FAQ
What is a Unix timestamp?
It is the number of seconds (or milliseconds) elapsed since 00:00:00 UTC on 1 January 1970. It is how almost every database and API stores a point in time.
Seconds or milliseconds?
Values larger than about 1,000,000,000,000 (1e12) are treated as milliseconds; smaller values are treated as seconds. This matches the standard convention used by most apps.
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