Domain Controller time is out of sync

Hardware->
Check hardware
Check VM configuration and Hypervisor settings
Check network / firewalls

Operating System->
On the affected DC run the following in cmd:
w32tm /config /syncfromflags:domhier /update
W32tm /resync /rediscover
net stop w32time && net start w32time

No change check the following regkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config
AnnounceFlags must be set to 10 (Dec) or a (Hex)
If you have to set it just run again:
net stop w32time && net start w32time

At least you can try to set default settings:
net stop w32time
w32tm /unregister
w32tm /register
net start w32time