For years, when it comes to my style of managing teams of engineers, one of the things I'm known for has to do with accurately tracking work time. In this article I’ll demonstrate the evolution of my ideas over the course of more than 15 years of experience as a designer and user of time-tracking systems, as well as an analyst of the data they generate. This article is mainly geared towards roles that are essentially computer jobs within the context of an employee working for a company, who in turn participates in a market governed by perfect competition with fixed wage layouts.