How to rotate a part in global space?

I'm sorry I wasn't clear enough, What I mean is how to rotate the part relative to itself or to the actual axes. Here is a small clip of what I mean explained by F3X

See how the axes changed? I can figure out how to rotate local/relative to the part, but I'm not sure about the center/global...

I just found this wiki page. Would this help me out at all?

You may have seen my question before, I needed help with moving parts locally on different axises. Now here's the ironic part, I can rotate parts locally, but not globally! Any idea how to do that?

I know how to locally rotate a part, you do it like this:

Part.CFrame = Part.CFrame * CFrame.Angles(math.rad(45), 0, 0)

And that rotates it locally on the X axis 45 degrees. How would I go doing this globally?

You could probably use a Server-Script, and a Remote Event to send new CFrames to the Server-Script and just modify the Local Script to send the CFrames

Helpful Links:

RemoteFunction and RemoteEvent Tutorial