Secure phpinfo by setting "datetime-range" for allowed functionality

info.php

<?php
# DateTime when forced exit is due:
$datetime_to_stop = new DateTime("2021-03-30 17:00:00");

# DateTime now:
$datetime_now = new DateTime();

if($datetime_to_stop < $datetime_now) {
	exit('silence is golden :/ - set working time');
}

phpinfo();