boottime.ps1

    $ServerName = $args[0]
    if ($serverName -eq $Null) { 
        $serverName= $env:COMPUTERNAME 
    } 
    $timeVal = (Get-WmiObject -ComputerName $ServerName -Query "SELECT LastBootUpTime FROM Win32_OperatingSystem").LastBootUpTime 
    #$timeVal 
    $DbPoint = [char]58 
    $Years = $timeVal.substring(0,4) 
    $Months = $timeVal.substring(4,2) 
    $Days = $timeVal.substring(6,2) 
    $Hours = $timeVal.substring(8,2) 
    $Mins = $timeVal.substring(10,2) 
    $Secondes = $timeVal.substring(12,2) 
    $dayDiff = New-TimeSpan  $(Get-Date -month $Months -day $Days -year $Years -hour $Hours -minute $Mins -Second $Secondes) $(Get-Date) 
     
    $Info = "" | select ServerName, Uptime 
    $Info.servername = $servername 
    $d =$dayDiff.days 
    $h =$dayDiff.hours 
    $m =$dayDiff.Minutes 
    $s = $daydiff.Seconds 
    $info.Uptime = "$d Days $h Hours $m Min $s Sec"
     
    $Info