When is the best time to study?

After you come home from school, rest for @ least 15 minutes.
Then start working for 2-3 hrs.

Keep laptops, video games, and things that distract you AWAY from you @ all times when u are studying.

and review what you did after dinner and read for the rest of the night until u go to bed.

TIPS:
if you are NOT in high school yet, then try out for international baccalaureate school :)
if you are in high school, try going into an IB high school or at least make it into these universities. http://en.wikipedia.org/wiki/Ivy_League

Study frequently and read a lot.
try writing lots of reports...

It depends on the person. Personally, I like to take a break after school and have a snack, get on the computer, etc. for about an hour then start my homework. Basically you just need to figure out what works for your study habits and your schedule.

It's after school because you've just finished the lesson and everything's still fresh and clear. Also, you can go through the chapter before the lesson. It does help. =]

The best time? well that's really a preference thing, just try different things and see what you like best.
Some tips?- be organized and review a little every few days or week so that you don't have to cram everything in and be totally lost, just taking five mins a day to read over notes isn't that bad. When taking notes, divide things into sections, color code things, highlight important things, ect. that will make it easier to find when you need to know it and easier to study if you completely get one thing, but are totally confused on something else. then you can find the section on what you don't understand and study just that for a while

Well, when do you have the most energy, and the most focus. Remember you want to study for about 20 minutes than take a short break than come back.

IT IS BETTER AT NIGHT BECAUSE YOU ARE ALL RELAXED AND YOU DO NOT WORRY ABOUT ANOTHER ERRAND YOU HAVE TO DO AND ALSO IT IS THE LAST THOUGHT BEFORE YOU GO TO SLEEP TAKE CARE