In order to show the date in the manor you want you have 2 options. 1 in Joomla, 1 in the module.
First, when you setup a custom field, type calendar (date) you can choose the option to 'show time'. If done, the date is shown like
2022-01-01 12:00:00
if not, the date is shown like
2022-01-01
Furthermore you can set the date in the user-details tab, to do the same, but here you can do more than just that, you can use PHP date-time formatting.
F j, Y, g:i a // March 10, 2001, 5:16 pm
m.d.y // 03.10.01
j, n, Y // 10, 3, 2001
Ymd // 20010310
h-i-s, j-m-y, it is w Day // 05-16-18, 10-03-01, 1631 1618 6 Satpm01
\i\t \i\s \t\h\e jS \d\a\y. // it is the 10th day.
D M j G:i:s T Y // Sat Mar 10 17:16:18 MST 2001
H:m:s \m \i\s\ \m\o\n\t\h' // 17:03:18 m is month
H:i:s" // 17:16:18
Y-m-d H:i:s // 2001-03-10 17:16:18 (the MySQL DATETIME format)