Step 1. Login to your Windows Server

Step 2. Open Powershell as Administrator setup NTP Server for time synchronization

If the computer you want to configure is an Active Directory domain controller, the NTP server function is automatically enabled. Therefore, the following is an example of setting the NTP server function to Windows Server in a workgroup environment.

Step 3. Run the following command to check current settings

Get-ItemProperty -Path "HKLM:SYSTEMCurrentControlSetServicesw32timeTimeProvidersNtpServer"

Step 4. Run the following command to Enable NTP server function

Set-ItemProperty -Path "HKLM:SYSTEMCurrentControlSetServicesw32timeTimeProvidersNtpServer" -Name "Enabled" -Value 1
``` setup NTP Server for time synchronization

![setup NTP Server for time synchronization](images/Screenshot_3-23-1024x366.png)

Step 5 . Change AnnounceFlags to 5

Meaning of numbers

0x00 : Not a time server

0x01 : Always time server

0x02 : Automatic time server

0x04 : Always reliable time server

0x08 : Automatic reliable time server

Set-ItemProperty -Path "HKLM:SYSTEMCurrentControlSetservicesW32TimeConfig" -Name "AnnounceFlags" -Value 5

![setup NTP Server for time synchronization](images/Screenshot_4-26-1024x347.png)

Step 6. Allow NTP port if Windows Firewall is running

New-NetFirewallRule `

![](images/Screenshot_5-21.png)

-Name "NTP Server Port" -DisplayName "NTP Server Port" -Description 'Allow NTP Server Port' -Profile Any -Direction Inbound -Action Allow -Protocol UDP -Program Any -LocalAddress Any` -LocalPort 123

Thank You!