Updating the system time on Server 2008R2 & 2012R2 using NTP Servers

1. To update, use the command below (2008 and 2012 server compatible)

   w32tm /config /manualpeerlist:"ntp_server" /syncfromflags:manual /reliable:yes /update
   

   change the ntp_server with your source. Check http://tf.nist.gov/tf-cgi/servers.cgi for servers

2. Restart the time service

   net stop w32time
   net start w32time

3. Resync the time

   w32tm /resync

4. Verify your sync status

   w32tm /query /status

Commands above should be fine if your sources are working correctly and/or your connection is OK (firewall or Microsoft Forefront can be an issue also).

The commands below can help with troubleshooting

To list out peers

w32tm /query /peers

To list out NTP Sources:

w32tm /query /source