Two of my friends struggled with something that most of us do - trying to be more productive at work. One of them did an analysis of the meetings and calendar manually for a few months and surprise surprise (not really!) there was a clear corelation between where he spent his time and what output came out.
And the result of this exercise is Timewise.
Timewise can help you do some stuff like:
Exhaustive analysis of calendar
See how you compare with peers
No extra logging required
100% privacy first