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Developer Tools
Free online tool
Convert Unix timestamps to readable dates and convert dates back into Unix timestamps.
Tool workspace
Paste or enter the data you want to process, then run the tool.
Debugging APIs, databases, logs and systems that store time as seconds or milliseconds.
Confirm whether the source uses seconds or milliseconds before converting a timestamp.
The meaning of a timestamp also depends on the timezone used to display the resulting date.
How to use it
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.
Related
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.
UTC
1970-01-01T00:00:00.000Z
Your local time
Jan 1, 1970, 12:00:00 AM UTC
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.