formats available for datetime

There is a method to_timestamp(dateTimeString [,format]) in Data Cloud/Data Processing Engine.

The documentation does not provide an example format nor exhaustive list of supported formats.

Where can I find the supported datetime formats?

Documentation:

https://help.salesforce.com/s/articleView?id=sf.c360_a_calculated_insights_date_time_operators.htm&type=5

https://help.salesforce.com/s/articleView?id=sf.customize_functions_datetimevalue.htm&type=5