MySQL:

TIME FUNCTION

Syntax:
TIME(expr)

Extracts the time part of the time or datetime expression expr and
returns it as a string.

URL: https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html

mysql> SELECT TIME('2003-12-31 01:02:03');
-> '01:02:03'
mysql> SELECT TIME('2003-12-31 01:02:03.000123');
-> '01:02:03.000123'

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