How to check windows up time for multiple computers by using PowerShell?

How to check windows up time for multiple computers by using PowerShell?

  04:01    Cloud Technet

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   $names = Get-Content C:\Users\h-gonenr.CORP\Desktop\poweshell\serveruptimeandpingstatus\in.txt

        @( 

           foreach ($name in $names) 

          { 

            if ( Test-Connection -ComputerName $name -Count 1 -ErrorAction SilentlyContinue )  

          { 

            $wmi = gwmi Win32_OperatingSystem -computer $name 

            $LBTime = $wmi.ConvertToDateTime($wmi.Lastbootuptime) 

            [TimeSpan]$uptime = New-TimeSpan $LBTime $(get-date) 

            Write-output "$name Uptime is  $($uptime.days) Days $($uptime.hours) Hours $($uptime.minutes) Minutes $($uptime.seconds) Seconds" 

          } 

             else { 

                Write-output "$name is not pinging" 

                  } 

               } 

         ) | Out-file -FilePath C:\Users\h-gonenr.CORP\Desktop\poweshell\serveruptimeandpingstatus\out.txt