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.
I think my actual GRE scores took about 8 days from ordering/sending to the school letting me know they had received them. I would expect the scores from ETS to be available to the school within five business days, but how long the school takes to put them into your application is another story. Also, if it helps, ETS marked all of my scores as sent within 24 hours of me requesting them. So...