What is the latest you have ever stayed up doing work?Watch
Staying up late actually has a severe negative effect on your retained knowledge. You're far, far, far better off getting an early night and then getting up early.
Unlike my friends, though, I don't start working early. Just concentrate better at night, so I become almost nocturnal in exam season.
I was given an assignment to do. Didn't do it until the last minute.
Shame on me!