code: public static function getUpTime()
  		{
  			$wmi = Windows::getInstance();
  
  			$booted_str = '';
  			foreach ($wmi->ExecQuery("SELECT LastBootUpTime FROM Win32_OperatingSystem") as $os) {
  				$booted_str = $os->LastBootUpTime;
  			}
  
  			$booted    = [
  				'year'   => substr($booted_str, 0, 4),
  				'month'  => substr($booted_str, 4, 2),
  				'day'    => substr($booted_str, 6, 2),
  				'hour'   => substr($booted_str, 8, 2),
  				'minute' => substr($booted_str, 10, 2),
  				'second' => substr($booted_str, 12, 2)
  			];
  			$booted_ts = mktime($booted['hour'], $booted['minute'], $booted['second'], $booted['month'], $booted['day'], $booted['year']);
  
  			return date('m/d/y h:i A (T)', $booted_ts);
  		}
docs: Gets system up-time
  
  @return string