Unix Timestamp Converter

Convert Unix timestamp to date and date to timestamp, with UTC, local time, seconds, and milliseconds.

About the Unix timestamp converter

The converter turns Unix timestamps into UTC and local dates, and also calculates Unix seconds and milliseconds from a date. Values are processed in the browser, and shared links include the visible data in the URL.

How to convert Unix timestamp

Choose timestamp to date or date to timestamp. Use UTC for a deterministic result across devices; use local time only when the input is a browser wall-clock time.