With the aim of constructing a Student Time Management Scale (STMS), the initial version was administered and data were collected from 523 standard eleventh students. (Mean age = 15.64). The data obtained were subjected to Reliability and Factor analysis using PASW Statistical software version 18. From 42 items 14 were dropped, resulting in the retention of 28 items on final version. The scale had a Cronbachs Alpha reliability coefficient of 0.885. Factor analysis revealed that the items on final version loaded on 4 factors, which accounted for 39.419% of the total scale variance. The factors were Scheduling Prioritizing, Planning Goal Setting Reviewing Record Keeping and Organizing Controlling of 7 items each and whose Cronbachs Alpha reliability coefficients were estimated to be 0.691, 0.697, 0.707 and 0.685 respectively. Students and teachers can use this scale for self development and guidance respectively. (Contain 3 tables with 8 references).