Horde_Icalendar::_parseUtcOffset PHP Method

    protected function _parseUtcOffset($text)
    {
        $offset = array();
        if (preg_match('/(\\+|-)([0-9]{2})([0-9]{2})([0-9]{2})?/', $text, $timeParts)) {
            $offset['ahead'] = (bool) ($timeParts[1] == '+');
            $offset['hour'] = intval($timeParts[2]);
            $offset['minute'] = intval($timeParts[3]);
            if (isset($timeParts[4])) {
                $offset['second'] = intval($timeParts[4]);
            }
            return $offset;
        }
        return false;
    }