Different Time Zones for Workstations in Active Directory Environment

Our Domain Controllers are in Indian Standard Time Zone and they use an Intranet NTP Server to synchronize their time.
10 Workstations were recently moved in to the Domain whose Time Zone was in PST.
The time zone needs to be manually changed from IST to PST after the user logs in to these 10 Workstations.

Every time the user logs off the time zone resets itself to IST.

Is there any special configuration that needs to be done in order to prevent this time zone change ?
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kumarnirmalAsked:
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kumarnirmalConnect With a Mentor Author Commented:
The issue was resolved after upgrading the system to the latest Service Pack.
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KCTSCommented:
All you should need to to is change the time zone in the control panel.
Open the Date and Time Opitonand go to to the Time Zone Tab
Set the Time Zone as required and save the changes
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pbsnowCommented:
I would make a new Organization Unit and place all the users and computers that will be in the PST time zone in that new OU

And then I would make new Group Policy Object for that group and modify the time settings in that GPO

The attached PIC has the location in the GPO you would want to setup.

If you want to make it easy just point the GPO that will be on the west coast to the Microsoft time servers and let them auto update. or you can create the timeserver yourself and apply the -8 time zone to that server.

gpotime.jpg
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kumarnirmalAuthor Commented:
All the users are in a single OU.
The users are able to change their time zone setting.
The problem is the setting is not remembered when they log off or restart the workstations.
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kumarnirmalAuthor Commented:
The issue has become even more complicated.
The time is being reverted back by 1 Hour every time the user logs in.
If the normal PST time is 12:15 AM, the time is being displayed as 11:15 PM to the user
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pbsnowCommented:
That is because they are getting over writen by the current GPO on restart you need to apply a new GPO to the users and computers that are in the PST time zone.

You also need to block the inheridence of the current GPO in the parent folders. so that they do not get the old GPO settings.

So if you have the PST users in there own UO away from the rest of the users that are not PST. You can apply the GPO to the PST group only

And since this template users the workstation templates you need to make sure the computers are in the same OU so that they get the new GPO also.

That is because they are getting over writen by the current GPO on restart you need to apply a new GPO to the users and computers that are in the PST time zone.

You also need to block the inheritance of the current GPO in the parent folders. so that they do not get the old GPO settings.

So if you have the PST users in their own UO away from the rest of the users that are not PST. You can apply the GPO to the PST group only

And since the template uses the workstation templates you need to make sure the computers are in the same OU so that they get the new GPO also.

Here is a pic for example
Blue arrow is your main GPO
Red Arrow is you PST OU blocking inheritance "the blue explanation point "!" Means that it is blocked.
The green arrow would be your new GPO is where you would edit the templates as shown in the above image.

tdhsou.jpg
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pbsnowCommented:
have you also applied the DST patch to thouse workstations. It is that time were it would start to make problems for the hour off. here is a link to the patch.

http://www.microsoft.com/downloads/details.aspx?FamilyID=66f1420c-df2d-400b-a8a9-ef9061a9a3ca&DisplayLang=en
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kumarnirmalAuthor Commented:
Block Inheritance is enabled for the specific OU.
I will try to update the DST Patch and would update the results accordingly
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