Because Im not quite sure what it is!

How do you define morning, afternoon and evening? Is there an afternoon equivalent for midnight to sunrise?

Personally I say:

Morning - midnight to noon
Afternoon - noon to 6pm
Evening - 6pm to midnight

and i've lately been trying to coin the word "oddening" to refer to Midnight to 6am and have morning refer solely to 6am to noon

Thus an oddening starts the day and at the end of the day it is evened.

I heard some people believe afternoon lasts until dinnertime or some such nonsense and would like to know if there are any like minded individuals here with which I shall strike from my list of respected persons.