How to fix time synchronization problems on Windows 7 / 8 / 10
net time \\ads.iu.edu /set /y
w32tm /resync
w32tm /config /manualpeerlist:”ntp_server” /syncfromflags:manual /reliable:yes /update
w32tm /query /peers
w32tm /query /source
– If you DO need ADDC as a reliable time source, make it reliable again:

w32tm /config /reliable:yes /update
Stop-Service w32time
Start-Service w32time
w32tm /unregister

w32tm /register

net stop w32time

net start w32time

w32tm /resync