Hello, I use boost::posix_time a lot in my code and I really do appreciate the library. But there's one thing I was recently missing when comparing time_durations to each other. double time_duration::operator/(time_duration); From my point of view this is a perfectly valid operation (as opposed to operator*(time_duration)) that returns the proportion of the two durations. I need that operation to compute statistics like "n% of the time I did x" or similar. What I'm currently doing is computing the proportions via time_duration::total_*() which works fine, but leads to some coding effort, since I'll have to cast one result to a real number to avoid integer division and some checks to prevent /0. I assume I'm not the first to compare time_durations so I was wondering if there was a reason operator/() is not overloaded for time_duration? Or if there is generally a better way to compare two durations? thanks, Norbert