Timestamp Converter
Unix timestamps and dates, both ways
Paste a Unix timestamp and it expands into ISO 8601, UTC, local time, and a relative reading; pick a date and it returns the seconds and milliseconds timestamp. A 10-digit value is read as seconds and a 13-digit one as milliseconds, and date conversions use your local time zone. Copy the result in one click, nothing is sent anywhere, and it all runs in your browser with no login or backend.
Tip: runs entirely in your browser with Date/Intl, nothing leaves the page. 10-digit input is read as seconds, 13-digit as milliseconds. Date conversions use your local time zone.
