Online PHP editor | refs for qqWTb

@ 2013-12-27T05:47:35Z

<?php

$string = '(Dec 27, 2013 05:26:29 PST)';
$tz = 'America/Los_Angeles';

preg_match('/^\((.*) PST\)$/', $string, $matches);
$string = $matches[1];

$dt = new DateTime($string, new DateTimeZone($tz));
echo $dt->getTimestamp();