Unix Timestamp Converter
Translate Unix timestamps and ISO date-times into UTC and local time.
Runs in your browser. Nothing you enter is sent to our servers.
Result
Enter your details and select Run tool.
How to use this tool
Enter an integer Unix timestamp (10-digit seconds or 13-digit milliseconds typically) or an ISO 8601 date-time with an explicit UTC offset. The result includes the UTC ISO string, epoch seconds, epoch milliseconds and your browser’s local date-time display.
Questions and answers
Which timezone does Unix time use?
Unix time measures elapsed seconds since 1970-01-01 00:00:00 UTC, independent of display timezone.
Can I enter a date without a timezone?
Use ISO 8601 with Z or an explicit offset to avoid ambiguity.