Research experts suggest that learning is most effective between 10 am to 2 pm as the brain is in the acquisition mode. It is also good to study in the evenings between 4 pm to 10 pm, but no later than that. Mornings are also good if you have had a sound sleep. Contrastingly, studying late at night by sacrificing quality sleep time hinders the ability to learn and understand. Therefore, students must drop the practice of studying late at night.