When's the Best Time to Write?

I'm sure everyone has different opinions on when to write and why it's best to write then. First, I'd like to say that if you've found something that works for you, stick to it! If it ain't broke, don't fix it. On the other hand, maybe we aren't as productive or inspired in the time slot we have made for ourselves to write in.

Write when you are most focused, concentrated, or creative (i.e. peak performance). I believe that these occur at the same time for a given person, but it varies from person to person. Right now, I prefer writing at night to in the morning. The general rule of thumb is that the younger you are, the later in the day you will achieve your peak performance (see source). In fact, "lazy teenagers" that sleep all day are in fact biologically programmed that way. It isn't their fault or laziness. They are most awake later in the day and most tired earlier in the morning. The opposite tends to be true of adults. Adults are most focused and awake in the morning but become tired earlier.

Source: Learning and Memory, Anderson