Windows 7 - Time Zone not being listed

Hello people...
i'm having a problem with the Time Zone selection,
i'm running Windows 7 professional x64 and I want to change my time zone but it only lists two, which does not include the one i want...
i right click on the clock (on right-down corner) , then adjust date/time, and i click on Change time zone button. then it brings me a drop down list which i can select, it only includes two time zones; UTC +2 and UTC +4. what i want is UTC/GMT +1 (Sweden time). how can i add an additional time zone to the drop down list so i can select it?
helps are appreciated in advance..
pce...

I have multiple entries for UTC+01:00. For the last person that had this problem, it was a problem with the registry. Unfortunately, not much info was given on how to go about fixing the registry. He was able to obtain the portion og the registy from another member but I'm not sure how to even make use of it. Problem with time zones

The only other thing I found so far was this: TIME ZONES are missing...__

I'll keep looking for fixes for you.

Okay. Figured out how to fix it. Download this. Rename it to Time Zones.reg (it saved as Time Zones.download on my computer, so it will probably be the same for you). Then open the file. You will see multiple prompts. Just click run/yes every time. Once the registry is fixed, you will need to restart the computer. Just to be safe, make a restore point before trying this.

thank you so much... it worked perfectly.. now i have all of the Time Zones in the drop down list to select... neat... thanks for the help

Glad it worked. I'll have to remember this fix as others seem to have it from time to time.

I've imported and updated this one from Vista as a new Windows 7 version tutorial below to help others in the future with this.

Time Zones - Restore Missing Default Time Zones

Thanks Brink. I might have to bookmark that one for future reference.