TIME_FORMAT() function can be used in a similar fashion as DATE_FORMAT() function but it can only be used for offloading time values. MySQL returns a NULL value if TIME_FORMAT() function is used for offloading date values.
For example, when we pass the time format units as arguments to MySQL TIME_FORMAT() function then MySQL offloaded only the time as follows −
mysql> Select TIME_FORMAT("2017-10-22 13:03:45", "%h %i %s %p")AS 'OFFLOADED TIME'; +----------------+ | OFFLOADED TIME | +----------------+ | 01 03 45 PM | +----------------+ 1 row in set (0.00 sec)
Whereas, when we pass the date format units as arguments to MySQL TIME_FORMAT() function then MySQL returns NULL as follows −
mysql> Select TIME_FORMAT("2017-10-22 13:03:45", "%Y %M %D") AS 'OFFLOADED DATE'; +----------------+ | OFFLOADED DATE | +----------------+ | NULL | +----------------+ 1 row in set (0.00 sec)