What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 (UTC), also called the Unix epoch.

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Convert Unix timestamps to human-readable dates and vice versa. Free online timestamp converter supporting seconds and milliseconds.

Unix Timestamp

A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch).

Timestamp → Date: Enter a Unix timestamp (in seconds or milliseconds) to get the equivalent human-readable date in UTC, ISO 8601, and local time formats.
Date → Timestamp: Enter any date/time string to get the corresponding Unix timestamp in both seconds and milliseconds.

The converter automatically detects whether the input is in seconds (10 digits) or milliseconds (13 digits).