function GetTimeSync
{
    $timeSynchronizationServiceRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_TimeSynchronizationService WHERE Name='Intel(r) AMT Time Synchronization Service'") 
    $inputObject = $timeSynchronizationServiceRef.CreateMethodInput("GetLowAccuracyTimeSynch")
    $outputObject = $timeSynchronizationServiceRef.InvokeMethod($inputObject)
    $returnValue = $outputObject.GetProperty("ReturnValue")
    if($returnValue -like "0")
    {
          $ta0 = $outputObject.GetProperty("Ta0")
          return $ta0
    }
}