Thanks Dave
Thanks to Dave Buchholz (yet again) whose post I found Here
So for my example above, it was:
$query_rs_data = "SELECT DATE_FORMAT(DATE_ADD(FROM_UNIXTIME(0), INTERVAL time_last_run SECOND), '%b %d %Y %h:%i %p') As LASTRUN FROM phpmysqlautobackup";
and
<?php echo $row_rs_pg['LASTRUN']; ?>
which output: Jul 09 2011 11:34 PM
Perfect. Cheers Dave.