Also,there's an option to disable it completely. The fun thing is that being it where the chat message bar is, doing the tooltips is a little tricky because of the various hide/show status you need to code, and sometimes they are incompatible between each other.
Anyway i can give it a try - if i get it right, you'd like to have the entire bar on mouseover; or you wanted to move the info in a tooltip? Just to get a more clear view of what i need to code.
EDIT: just fyi, the tooltips (also the low right corner one) are disabled during combat to avoid accidental mouseovering that will bring up things mid-fight and maybe obscure screen areas. That's why everything is there; anyway that bas could be less crowded (the clock could be moved on minimap).