PowerShell: Convert integer8Date to Date
# lockoutTime is GMT (eg. 130599884480379712)
[datetime]::FromFileTime((Read-Host "integer8Date (lastLogon, lockoutTime, etc.)"))
# Convert GMT
$Date = Get-Date
$UTC = $Date.ToUniversalTime()
$Offset = ($Date - $UTC).Hours
([datetime]::FromFileTime((Read-Host "integer8Date (lastLogon, lockoutTime, etc.)"))).AddHours($Offset)