Getting Things Done - GTD
GTD and Living in the Second Quadrant
Stephen Covey says in his book The 7 Habits of Highly Effective People that the so-called time management has evolved from a very first generation of people who only had to-do lists where they crossed tasks off when completed, to the current generation, where people do not try to manage time itself but themselves, by focusing on those activities that are important with regard to their life and values (you can read about this generational evolution in this other article on self-management) .