ServerUptime.ps1

# This script permits to get UpTime from localHost or a set of remote Computer  
# usage  
# localHost  
# .\BootTime.ps1  
# set of remote computers  
# get-content .\MyserverList.txt | .\boottime.ps1  
# Optionally pipe output to Export-Csv, ConverTo-Html   
  
Process {  
    $ServerName = $_  
    if ($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   
}