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<a href="http://support.microsoft.com/kb/816042" rel="ugc nofollow">read this microsoft article</a> about configuring authoritative time server<br />
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on clients use command prompt command -&gt; <a href="http://technet.microsoft.com/en-us/library/bb491016.aspx" rel="ugc">w32tm</a>
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Can this be setup by group policy?
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Usually there is no need to configure the group policy for this, because, setting the time based on the article recommended by <b>Tomislavj</b>, if you do it on you PDC, the rest of the server are already configured to keep in sync with your PDC and also the clients.<br />
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If I remember correclty - I have set my PDC using instructions from this article: <a href="http://tigermatt.wordpress.com/2009/08/01/windows-time-for-active-directory/#resetTimeService" rel="ugc">Configuring Windows Time for Active Directory</a> and all I have did was running the following command:<br />
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w32tm /config /manualpeerlist:&quot;0.pool.nt<wbr />p.org,0x8 1.pool.ntp.org,0x8 2.pool.ntp.org,0x8&quot; /syncfromflags:manual /reliable:yes /update<br />
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And all my servers and workstations were in sync since then.
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Very detailed and precise walkthrough. Thank you!
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All the machines on our network are 2 minutes fast. How can I rectify this so it is accurate across all the machines and the domain controller?
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All the machines on our network are 2 minutes fast. How can I rectify this so it is accurate across all the machines and the domain controller?

read this microsoft article (http://support.microsoft.com/kb/816042) about configuring authoritative time server

on clients use command prompt command -&gt; w32tm (http://technet.microsoft.com/en-us/library/bb491016.aspx)

Usually there is no need to configure the group policy for this, because, setting the time based on the article recommended by Tomislavj, if you do it on you PDC, the rest of the server are already configured to keep in sync with your PDC and also the clients.

If I remember correclty - I have set my PDC using instructions from this article: Configuring Windows Time for Active Directory (http://tigermatt.wordpress.com/2009/08/01/windows-time-for-active-directory/#resetTimeService) and all I have did was running the following command:

w32tm /config /manualpeerlist:&quot;0.pool.ntp.org,0x8 1.pool.ntp.org,0x8 2.pool.ntp.org,0x8&quot; /syncfromflags:manual /reliable:yes /update

And all my servers and workstations were in sync since then.

Very detailed and precise walkthrough. Thank you!

How to fix domain / domain controller time that is two minutes out?

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.