There was a question about time zones and SMS on MyITForum, so I hit Google to find a list of time zones, with all the Wkis out there you would think that finding a full list of time zones would be easy but it turned out not to be. Anyways I create a query to determine which time zone a PC was in based on the information that I found. Find the query here: https://myitforum.com/articles/8/view.asp?id=9650
After updating the query a few time to correct a few things, the original poster of the question found a much simple and reliable method to determine the time zones.
<Drum Roll Please…>
Enable the Time Zone class within the SMSDEF.mof.