Find your PDC Emulator
Get-ADDomainController -Discover -Service PrimaryDC
Transfer domain roles if needed
https://technet.microsoft.com/pt-pt/library/cc816944(v=ws.10).aspx
ntp Servers Pt
http://www.pool.ntp.org/zone/pt
pool.ntp.org
Set NTP
Using w32tm.exe
Run the following command on the PDC emulator:
w32tm /config /manualpeerlist:timeserver /syncfromflags:manual /reliable:yes /update
(where timeserver is a –space delimited– list of your time source servers)
Once done, restart W32Time service.
net stop w32time
net start w32time
Run the following command on all other DCs (that are not PDC):
w32tm /config /syncfromflags:domhier /update
Once done, restart W32Time service.
FIND DC servers
PS C:\Users\Administrador> nltest /dclist:mydomain.local