Time is the most valuable and scarce resource we have. How we manage our time, what we do with it, then becomes a fundamental question. And even more so if one is managing and directing, since the director's time does not belong to him, but to those who depend on him. And even more so if the institution being managed is a school, which is currently in crisis and requires bold and accurate responses. How can a school administrator face the current and future challenges, if not by making efficient use of his or her primary resource: time? Such is the proposal of this book: to delve and inquire into the need and importance of time management in schools, linking time, the managerial function, and awareness of the ideal, the perceived and the real. The purpose is to determine the influence and possible contribution of these factors to a thoughtful, conscious, objective and systematic management of a manager's time. The reader is invited to a critical and reflective path on these issues as a means to achieve effective and efficient time management.