date_time_set Sets the time &reftitle.description; voiddate_time_set DateTimeobject inthour intminute intsecond voidDateTime::setTime inthour intminute intsecond &reftitle.parameters; object DateTime object. hour Hour of the time. minute Minute of the time. second Second of the time. &reftitle.returnvalues; Returns &null; on success or &false; on failure. &reftitle.seealso; date_date_set