Domain Controller time and date keeps chanigng daily

My Windows 2012 DC is running on a physical machine (not vmware). It gets IP address from a CISCO dhcp router. I notice that its time and date changes every day, which also affects the clients systems. Pls what should I do?
ptoall1000Asked:
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Helao MwapangashaData Centre: Server EngineerCommented:
have you checked that the cmos battery of the server has not faulted?
is it syncing time from an external NTP server on a different time zone perhaps?
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Chris MillardCommented:
You don't say how much of a time difference there is. Is it hours? If so, your time zone may be incorrectly set on the DC.

Check the time zone on your DC, and also look at configuring it to get it's time from an NTP server:-

http://www.sysadminlab.net/windows/configuring-ntp-on-windows-server-2012
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Tony GiangrecoCommented:
Check the Cmos battery on the motherboard. it's normally a small button battery like the ones used in a watch. ome servers use a larger customized battery.

Check to see if your router is setup to acquire time from the internet. If so, make sure it's on the same time zone as your server and verify the time zone is correct on your server.

Verify your server is not shutting down at night. Most servers run 24x7. If it;'s been shutdown ad restarted for any reason, then your Cmos battery is what i would check first.  Make sure you replace it with the exact same model so you have the proper voltage and fit in it's socket.

Hope this helps?
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
Your root DC should be synchronizing time with a reliable time server.  If your DC is virtualized, ensure to NOT synchronize time with the host.
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Dr. KlahnPrincipal Software EngineerCommented:
What is the magnitude of the change?

It is not unusual for hardware clocks to be off up to 10 seconds per day, which causes a time reset when the system syncs to the NTP server.
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