The answer is between 5 and 7 pm. According to Dr. James B. Maas and Rebecca S. Robbins, that time slot is the best time for athletic activity because it improves the depth of sleep of students at night (In their research, they stated that the optimal amount of sleep time is 8 to 10 hours for a teenager). They also found out that between the 6th and 8th hour of sleep, the brain gets in a state that enhances muscle memory significantly, which combined with better overall sleep, will result in better athletic performance.
