static public function secondToTime($times)
    {
        $result = '00:00:00';

        if ($times > 0) {
            $hour = floor($times/3600);
            $minute = floor(($times-3600 * $hour)/60);
            $second = floor((($times-3600 * $hour) - 60 * $minute) % 60);
            $result = str_pad($hour, 2, "0", STR_PAD_LEFT).':'.str_pad($minute, 2, "0", STR_PAD_LEFT).':'.str_pad($second, 2, "0", STR_PAD_LEFT);
        }

        return $result;
    }