Catastrophe definition, a sudden and widespread disaster: the catastrophe of war. See more.
1 Total Time: The computer-delivered GRE takes 3 hours and 45 minutes for the average student.  Experts recommend sitting for the GRE exam one year prior to entering graduate school. This allows for ample study time and the option to retake it if desired.
20 min. Take 20 minutes to test your knowledge of the GRE material and get complete explanations of every question. Plus, youâll receive Kaplan strategies thatâll save you time and help you score higher.