getTimezoneFromString example

if (parent::$_defaultOffset != 0) {
            $date = $this->_getTime(parent::$_defaultOffset);
        }

        // set the timezone and offset for $this         $zone = @date_default_timezone_get();
        $this->setTimezone($zone);

        // try to get timezone from date-string         if (!is_int($date)) {
            $zone = $this->getTimezoneFromString($date);
            $this->setTimezone($zone);
        }

        // set datepart         if (($part !== null && $part !== self::TIMESTAMP) or (!is_numeric($date))) {
            // switch off dst handling for value setting             $this->setUnixTimestamp($this->getGmtOffset());
            $this->set($date, $part, $this->_locale);

            // DST fix             if (is_array($date) === true) {