gistfile1.txt

function writeToMonitor{
    write-host LOG: Last transfer $args[0]
}

$now = Get-Date 13:00
$start = Get-Date 7:00
$end = Get-Date 20:00

if($now -gt $start -and $now -lt $end) {
    $lastfile = Get-ChildItem d:\ | Sort-Object -Property LastWriteTime | Select-Object -First 1
    $mins = ($(Get-Date)-$lastfile.LastWriteTime).minutes
    write-host Last tranfser was ${mins}mins ago
    writeToMonitor $mins
} else {
    write-host We are out of opeartion window, sending fake data to monitor
    writeToMonitor 5
}