# Convert a UNIX timestamp to a date[¶](https://doc.dataiku.com/dss/latest/preparation/processors/unixtimestamp-parser.html#convert-a-unix-timestamp-to-a-date "Permalink to this headline")

Convert a UNIX timestamp (number of seconds or number of milliseconds since Epoch — January 1, 1970) into a column containing ISO-8601 formatted dates.

## Option[¶](https://doc.dataiku.com/dss/latest/preparation/processors/unixtimestamp-parser.html#option "Permalink to this headline")

**Treat input as milliseconds**

By default, the conversion between UNIX and ISO-8601 is done in milliseconds. Deselect to treat input as seconds.
