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Synchronizing Your Computer's Clock with Penn's Network Time Server in Windows 2000 & XP

To synchronize your computer's clock with Penn's network time server:

Kerberos requires that your Windows clock be in sync with that of the Kerberos KDC (ticket-dispensing) server. You can synchronize your computer's clock with Penn's network time server to ensure that your computer's date and time remain consistent with that of the Kerberos server.

  1. Make sure that Dimension4 is installed.
    Dimension4 is installed when you run the PennConnect CD-ROM. It can also be downloaded from the Penn's Dimension4 product site at: http://www.upenn.edu/computing/product/specs/dimension.html

  2. The versions of Dimension4 found on the PennConnect CD-ROMs or on the Supported Products download site have been configured to include the University's time servers. No further configuration is necessary.

Note: Penn has 3 time servers. You can use any of these servers to synchronize time. Below is a list of the Penn time servers:

  • timeserver1.upenn.edu

  • timeserver2.upenn.edu

  • timeserver3.upenn.edu

To select the proper local time zone for your computer:

Once you have synchronized your computer's clock, if it still differs widely from your local time, check to determine whether you have set the time zone correctly.

Note: Do not attempt to manually adjust either the Current Date or Current Time fields. They will be automatically and correctly reset by steps below.

  1. From the Start Menu, go to Settings and select Control Panel.

  2. Click the Date and Time icon.

  3. In the Date and Time Properties window, click the Time Zone tab.

  4. Use the pull-down menu to select the correct local time zone for your new location. For example, select the option that says "(GMT) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London" for Liverpool, England.

  5. Click the checkbox labeled "Automatically adjust clock for dayight savings changes" to activate it.

    1. Close Date & Time control panel.

To change the local time zone:

If you have transported your computer to another time zone and want to display the new local time, you must change the time zone designation, not the time display itself, in order to maintain proper synchronization with the network time server. For example, if you carry a laptop computer with you outside the eastern United States, or if you take your workstation outside the Eastern time zone during summer break, you should follow these instructions to reset your computer's clock.

Note: Do not attempt to manually adjust either the Current Date or Current Time fields. They will be automatically and correctly reset by steps below.

  1. From the Start Menu, go to Settings and select Control Panel.

  2. Click the Date and Time icon.

  3. In the Date and Time Properties window, click the Time Zone tab.

  4. Use the pull-down menu to select the correct local time zone for your new location. For example, select the option that says "(GMT) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London" for Liverpool, England.

  5. Click the checkbox labeled "Automatically adjust clock for dayight savings changes" to activate it.

  6. Close Date & Time control panel.

 

Information Systems and Computing
University of Pennsylvania
Information Systems and Computing, University of Pennsylvania