Anyone know of an app to do a Drucker Time Analysis?

I'm preparing to do a Drucker Time Analysis. It seems to me that someone has probably developed an app to help with this. Has anyone comer across an app that works well for this? The closest app I have found is ATracker. I also found this pdf - http://www.rightattitudes.com/2008/10/21/log-where-time-actually-goes/