#Windows Server time setup, used largely on domain controllers and non-domain joined standalone servers.  Domain joined computers should sync from the domain controllers.  
#Both Registry and application setup done by this script. 

Push-Location
Set-Location HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers
Set-ItemProperty . 0 "0.pool.ntp.org"
Set-ItemProperty . 1 "1.pool.ntp.org"
Set-ItemProperty . 2 "2.pool.ntp.org"
Set-ItemProperty . 3 "3.pool.ntp.org"
Set-ItemProperty . "(Default)" "0"
Set-Location HKLM:\SYSTEM\CurrentControlSet\services\W32Time\Parameters
Set-ItemProperty . NtpServer "0.pool.ntp.org"
Pop-Location

w32tm.exe /config /manualpeerlist:"0.us.pool.ntp.org 1.us.pool.ntp.org 2.us.pool.ntp.org 3.us.pool.ntp.org" /syncfromflags:manual /reliable:YES /update
w32tm.exe /config /update

Stop-Service w32time
Start-Service w32time