When do people come to mrproctor.net?

I have been using Google Analytics on mrproctor.net, so I can learn about how people use the site. Here's an interesting graph showing what time of day people tend to log on. I am pleased to see a big jump between 4 and 5 PM, suggesting a lot of people check their homework as soon as they get home. It's also clear which five hours some of you choose to sleep.