For effective GMAT preparation, students should ideally dedicate 2 to 4 hours per day, depending on their schedule and target score. Quality and consistency are more important than long, unfocused sessions, so study time should be structured with clear goals, including concept review, practice questions, and timed drills. Breaking study sessions into focused blocks of 60–90 minutes with short breaks can enhance retention and prevent fatigue. Balancing study duration with effectiveness also involves periodic full-length practice tests, error analysis, and revision, ensuring steady progress while maintaining motivation and minimizing burnout.