The only thing, which can't be changed by man, is time. One cannot get back time lost or gone Nothing can be substituted for time. Time management is actually self management. The skills that people need to manage others are the same skills that are required to manage themselves. The purpose of the present study was to explore the relation between time management and academic achievement of Higher Secondary students. The population for the present study consists of 180 students and the sample consists of 63 students [35 male and 28 female] taken from Peniel Higher Secondary School, Natham, Dindigul District. Time management scale was prepared and validated by Prof. S. Arockiasamy and Miss. P. Premalatha, 2011 (St. Xavier's College of Education, Palayamkottai). The investigator used this tool to assess Time management. Personal data sheet was prepared by the investigator. Percentage analysis, Mean, Standard deviation and "t" test were used for analyzing the data. The results showed that there is significant relationship between the Time management and Academic achievement of Higher Secondary students.