Hi marble_tech,
Unfortunately, you can have only 2 additional Clocks (3- Clocks displayed); you may use your favorite search engine to search for a third party software that will help you out with this task.
**Note:**Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk.
It is recommended to backup your registry before working on it.
Important: Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
How to back up and restore the registry in Windows
http://support.microsoft.com/kb/322756/
Thanks and Regards:
Ajay K
Microsoft Answers Support Engineer
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