How to quickly sync your DC's to NTP and correct time issues on your domain
Quick and dirty-
Run the following command on your PDC emulator:
w32tm /config /manualpeerlist:_timeserver_ /syncfromflags:manual /reliable:yes /update
In my case, timeserver is a North American ntp pool server.
w32tm /config /manualpeerlist:0.north-america.pool.ntp.org /syncfromflags:manual /reliable:yes /update
After this is done, restart the "Windows Time" service.
After that is complete, run the following on all other DC's and restart the "Windows Time" service once complete.
w32tm /config /syncfromflags:domhier /update