First of all, congratulations on deciding to put in the effort to do your research. Now, coming to the question at hand, the best answer would be that you should take the GRE when you are ready. However, if you are trying to find out the best time in the year to attempt the exam, then I would say, February to July for a few reasons.
• More time to do your applications
• More exam dates are available during this time
• If you are planning to sign up for GRE classes, then this is the lean period, thereby ensuring small batch sizes
• You have enough time to reattempt the exam if you want to before the admission deadlines.
And these are just the primary factors. Taking the GRE during this time of the year allows you a lot more room for comfort in the admissions process. And that is very important as the colleges and universities that are reputed, expect you to do your homework on their courses and curriculum and not just apply for the sake of the college ranking.
• More time to do your applications
• More exam dates are available during this time
• If you are planning to sign up for GRE classes, then this is the lean period, thereby ensuring small batch sizes
• You have enough time to reattempt the exam if you want to before the admission deadlines.
And these are just the primary factors. Taking the GRE during this time of the year allows you a lot more room for comfort in the admissions process. And that is very important as the colleges and universities that are reputed, expect you to do your homework on their courses and curriculum and not just apply for the sake of the college ranking.