ch\nlarger, so HOUR can return values greater than 23. Returns NULL if time\nis NULL.\n\nURL: https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html\n\n','mysql> SELECT HOUR(\'10:05:03\');\n        -> 10\nmysql> SELECT HOUR(\'272:59:59\');\n        -> 272\n','https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html');