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Refer this MS article &nbsp;<a href="http://support.microsoft.com/kb/816042" rel="ugc">http://support.microsoft.com/kb/816042</a> how to configure autorative time Server.<br />
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Normally PDC role holder server is defined as NTP Server but if you want to configure other DC as time server you can do the same .Once the registry setting is done on the PDC server.Point other DC's to sync time from PDC Server below setting need to be done.<br />
Go to HKEY_LOCAL_MACHINE\SYSTEM\<wbr />CurrentCon<wbr />trolSet\Se<wbr />rvices\W32<wbr />Time\TimeP<wbr />roviders\N<wbr />tpServer<br />
and specify the name of the PDC Server.After setting the registry restart the time service.<br />
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Refer this MS article  http://support.microsoft.com/kb/816042 [http://support.microsoft.com/kb/816042] how to configure autorative time Server.

Normally PDC role holder server is defined as NTP Server but if you want to configure other DC as time server you can do the same .Once the registry setting is done on the PDC server.Point other DC's to sync time from PDC Server below setting need to be done.
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
and specify the name of the PDC Server.After setting the registry restart the time service.





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I have looked through dozens of articles and forums and could not find an easy to understand explaination of managing time in a domain. I have a mix of Server 2003, 2008, and 2008 R2, Windows XP, Vista and 7. I understanding of ntp is only setting my none domain computer to a different exteral server provider like 0.pool.ntp.org. I am tring to make sure that the DC controls the time with an external souce and that all computers look to if for time. I would also like to configure our test enviroment machines to update every 5 min. I would like to be able to deploy with from our 2008 R2 DC if possible.<br />
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Thanks
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I have looked through dozens of articles and forums and could not find an easy to understand explaination of managing time in a domain. I have a mix of Server 2003, 2008, and 2008 R2, Windows XP, Vista and 7. I understanding of ntp is only setting my none domain computer to a different exteral server provider like 0.pool.ntp.org. I am tring to make sure that the DC controls the time with an external souce and that all computers look to if for time. I would also like to configure our test enviroment machines to update every 5 min. I would like to be able to deploy with from our 2008 R2 DC if possible.

Thanks

How to properly setup time in a mixed domain enviroment.

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