I have a single domain, single Lan segment with.....
1x physical 2003 Server/DC hosting the FSMO roles
1x physical 2003 Server/DC - App Server
1x Physical 2003 Server/DC - File Server
2x physical 2012 R2 Standard Server - both Hyper-V hosts - each hosting 2x 2012VMs.
1x Physical 2012 R2 Standard Server/DC - which will take over hosting the FSMO roles next week. All 2003 machines will be retired within the month. One of the VMs will be the 2nd DC after the 2003 servers are gone.
The first two 2003 servers list NTP their time source as 0.us.pool.ntp.org & 1.US.pool.ntp.org
The Third 2003 server and the 2012 servers list their NTP time source as Time.Windows.com, 0x1
How time supposed to be configured and now and after I switch fSMO roles and retire the 2003 machines.