- var_dump: documentation ( source)
<?php
$date = new DateTime('2018-05-01 11:30:00');
var_dump(($date->format('H') == '05' || $date->format('H') == '12') && ((int)$date->format('i') < 30));
$date = new DateTime('2018-05-01 12:30:01');
var_dump(($date->format('H') == '05' || $date->format('H') == '12') && ((int)$date->format('i') < 30));