How to sync your Active Directory (AD) time with a reliable time source
1. Choose a Reliable Time Source You can use NTP (Network Time Protocol) servers from a reliable provider such as: Microsoft NTP servers : time.windows.com NIST (U.S. Government) : time.nist.gov Singapore NTP servers : sg.pool.ntp.org 2. Configure the PDC Emulator to Sync with an External NTP Server The PDC Emulator (Primary Domain Controller Emulator) is responsible for time synchronization in an AD domain. Step 1: Identify Your PDC Emulator Run this command on any Domain Controller (DC) to check which DC holds the PDC Emulator role: powershell netdom query fsmo The PDC Emulator should be listed under PDC Role . Step 2: Configure the PDC Emulator to Use an External NTP Server Run the following command on the PDC Emulator: powershell w32tm /config /manualpeerlist:"sg.pool.ntp.org time.windows.com time.nist.gov" /syncfromflags:manual /reliable:yes /update Then, restart the time service: powershell net stop w32time && net start w32time Step 3: Force Sync and Verif...