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.
In computer-based tests after giving GRE exam, score reports will be mailed within 10-15 days after the test date. And in text based exam scores will be sent to you and the scâ¦ore recipients you designate within six weeks after your test date.