arkel-s d5f4790f90 [DOCS] Add example format for date_optional_time (#50458)
Adds an example format for `date_optional_time` to the `format` mapping
parameter docs.

Closes #50457
2020-01-07 10:13:34 -06:00
..
2020-01-02 17:19:42 +00:00
2019-12-23 12:38:17 -05:00
2019-12-23 12:38:17 -05:00