Need a mod that gives combat log time stamps

[lemekim]

I want to do some testing with Mind Control and how long it lasts with different equipment configurations. Is there a simple mod that gives combat log time stamps? I think that would be more accurate than having me hit a stopwatch each time, especially since I don't own a stopwatch.

Perhaps I am missing something, but can't you just turn on Blizzard's own time stamps, and use built-in Blizzard's logging tool to output everything to a text file so that you can peruse it later?