This study investigated the length of study time behaviour and academic achievement of Social Studies Education students in the University of Uyo. The purpose was to determine the difference in the academic achievement of the long study time behaviour students and their short study time behaviour counterparts in Social Studies Education. The study used 120 social studies students of the University of Uyo representing 2% of the population. The researchers administered the instrument personally to the students selected. The t-test statistics was used to analyse the data generated for the study. From the result, the null hypothesis was rejected. Hence the academic performance of the long study time behaviour students was significantly different from that of their short study time counterparts. In view of the findings, it was recommended that students should set a study time table long enough for effective academic exercises (at least two to three hours daily) for their private study and stick to it.