/**
* @param string $lang
* @param bool $legacyTick If set to true, tick start from year 2525 (aniro, arispotle, leanon)
* else tick start from 2568 (atys)
*
* @throw \RuntimeException
*/
public function __construct($lang = 'en', $legacyTick = false)
{
parent::__construct(0, 0, $legacyTick);
$this->lang = $lang;
}