Studying in right time helps us to understand better and also remember it for long.
I personally prefer to study during the early morning hours.
In the early hours, the mind is fresh and devoid of stress. Hence it is clear and in a receiving mode. Also there will be little distractions due to silence around.
For some studying night time works well as they find it distraction free but the mind would be tired.
However for students and young children early morning would be good for better memory.
But again it may vary from person to person. And some find it hard to not fall asleep during early morning hours.
So when is the Best Time to Study
This we advice based on the need to have better memory of what we read and also for better scoring in the exam.
Immediately after class: One should read the subject covered by the teacher immediately after class. This helps a lot in terms of understanding better and also remembering better.
In the evening after school: Once you go home, it is good to revise what you were taught in the morning. This helps to get a clear idea of the topic and if you find any doubts, you could clarify the next day.
Early in the morning: If you cannot spend time in the evening, you can try so in the next morning. Typically starting at 4 AM or 5AM would be good. The mind is refreshed and whatever you study, will be there for long in the memory. Also you could find few doubts which can be clarified the same day.
After a week of completion of the topic: In the weekends one would have sufficient time. Spending a couple of hours would help revise the whole topics covered over the week. This is best way to add to your memory and you would feel very confident about the subject. You can easily understand better and prepare for exam fast.
Before few days of the exam: If you have followed all the above methods, you would be less tense before exam. Because you know has to be revised and also from where to study. You would not be busy collecting notes or burning midnight oil for it. You will revise with ease and think of possible questions which might appear in the exam.
Before exam you just need to revise and also go through few topics which are hard more times to get grip over them. Also follow the same notes which you used before.