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Developer ToolsFree online tool
Convert Unix timestamps to readable dates and convert dates back into Unix timestamps.
Paste or enter the data you want to process, then run the tool.
Use the controls above, check the result, then copy or download it when available.
Seconds and milliseconds are both common; choosing the wrong unit can produce a wildly different date.
Use this tool whenever you need: Debugging APIs, databases, logs and systems that store time as seconds or milliseconds. It offers a fast, client-side workflow without sign-ups, installation or complex software.
Yes. All processing executes locally in your browser using client-side JavaScript. Your inputs, files and calculations remain private and are never uploaded to our servers.
Confirm whether the source uses seconds or milliseconds before converting a timestamp. Important note: The meaning of a timestamp also depends on the timezone used to display the resulting date.
Convert Unix timestamps
Switch between timestamps and readable dates without leaving your browser.
Turn a Unix timestamp into a readable date.
Use seconds for common Unix timestamps, or milliseconds for JavaScript values.
Your date will appear here.
Enter a Unix timestamp to see the UTC and local date.
Convert a date and time into Unix seconds or milliseconds.
Your browser interprets this date in your local time zone.
Your timestamp results will appear here.
Choose a date and time to generate Unix seconds and milliseconds.
Conversions happen locally. Unix timestamps measure elapsed time from January 1, 1970 UTC; the date picker is interpreted using your browser's local time zone.