This study ascertained the time management strategies for principals' administrative effectiveness in secondary schools in Enugu State. Two research questions guided the study. The study adopted a descriptive survey design. The study was conducted in Enugu State. The study population comprised all the 291 secondary school principals' in Enugu State. Simple random sampling technique was used to sample 146 principals for the study. The instrument used for data collection was a well-structured 15 items researcher developed instrument titled; Time Management Strategies for Principals' Administrative Effectiveness Questionnaire (TMSPAEQ). The instrument was structured on a four rating scale of Strongly Agree (SA), Agree (A), Disagree (D) and Strongly Disagree (SD) weighted 4, 3, 2 and 1 respectively. The face validation of the instrument was established by subjecting it to criticism by colleagues, experts and authorities in the field of inquiry. The cronbach alpha was used to determine the reliability of the instrument. Data were analyzed using mean and standard deviation. The findings of the study revealed that principals' manage their time for administrative effectiveness in secondary schools by adopting meetings management strategies, it also revealed that principals' do not adopt delegation strategies in managing time for administrative effectiveness in secondary schools in the areas of; allowing assistants to make decisions regarding assigned tasks, having complete faith in staff ability when delegating tasks, delegating to staff according to their abilities, and placing a limit for task completion when delegated among others. The study concluded among others that principals' do not adopt delegation strategies in managing time for administrative effectiveness in secondary schools in Enugu State. Based on the findings, it was recommended that capacity building on effective time management should be considered by State Ministry of Education by organizing workshops, seminars and conferences on time management strategies for a successful school administration among others.