Configuring Windows Terminal Server for Differing Time Zones

By default Terminal Server keeps track of time according to the time zone in which it has been configured, rather than on a per-user basis. This can be a problem when a user connects to a terminal server outside of the time zone in which the user is located because the local computer uses the time configured on the terminal server rather than the local time. If you are hosting time-sensitive applications on your terminal server or if you have processes in place that depend on the user’s current local time, such as financial systems and calendaring, you might want to enable the Allow Time Zone Redirection Group Policy setting. This policy is located in Windows Components/Terminal Services. With this setting enabled, Terminal Services uses the server base time on the terminal server and the client time zone information to calculate the time on the session.

Link to the above TechNet page: http://technet2.microsoft.com/windowsserver/en/library/ce300cba-f39a-48a9-b97f-88a7193f6a4c1033.mspx?mfr=true

Or for Citrix:

Configure time zone settings in Citrix Presentation Server 4.5 Filed under: Citrix gems — Jeff Rohrer @ 2:18 pm

It’s an interesting question. What time zone is used in published application sessions by default? The client or the server? It’s the server, by default. But this setting can be changed. Let’s see how.

Let’s say an administrator wants to change the time zone setting in the Citrix Presentation Server farm so that the client’s local time is always used inside the client session. She would:

1. Open the Access Management Console, right-click on the server farm node and choose Properties.
2. Expand the Farm-wide and Presentation Server nodes and click General.
3. Configure the time zone settings for the farm by choosing Use Client’s local time. (For clients released prior to MetaFrame XP Feature Release 2, use Estimate local time for clients).
4. Click OK.

By changing to Use Client’s local time, the clients will pass their time zone information to the Presentation Servers which will store the client’s time zone information in the server and use it every time an application is launched using that client.

Link to the above Blog: http://www.citrixxperience.com/blog/?p=153