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.
GRE test pattern: Computer-based test is the most commonly used GRE test format. However, paper-based format is available at test centres where Computer-based GRE test is not there. The total duration of the test is 3 hours 40 minutes. There are six sections and a 10-minute break is given after the third section during the examination. GRE Test Syllabus: GRE is available in two formats.