Convert between Unix epoch time and a human-readable date. Everything runs in your browser, in your local timezone (shown below) plus UTC.
Convert a Unix timestamp (seconds or milliseconds since 1 January 1970 UTC) into a human-readable date — and a date back into a timestamp. The converter detects whether you pasted seconds or milliseconds, shows both UTC and your local time, and displays the current timestamp live.
A daily helper for reading log files, database rows, JWT expiry claims and API responses.
Unix time is officially in seconds (10 digits today). JavaScript and many APIs use milliseconds (13 digits). The tool detects the length and labels the result.
Systems that store the timestamp as a signed 32-bit integer overflow on 19 January 2038. 64-bit systems — and this tool — are unaffected.
Yes, in your browser with the built-in Date object.
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