<?php
// GOOGL
echo strtotime('Wednesday, August 20, 2014 18:28:08 UTC-240') . '<br />';
// Current output for SOLB-EEB
echo strtotime('Wednesday, August 20, 2014 18:28:08 UTC120') . '<br />';
// Correct time string for SOLB-EEB
// Note that if the value is positive there should be a space between UTC and the offset
echo strtotime('Wednesday, August 20, 2014 18:28:08 UTC+120') . '<br />';