The afternoon is the time between morning and evening.
In a dream, it can represent a transition between two phases in your life.
If you have a dream that takes place in the afternoon, you could be contemplating or making preparations for a change in your life.
For example, you may be thinking about a career change, or you could be noticing that something about a relationship of yours is changing.
Dreaming that it is the afternoon can mean that you are thinking about growing older while, at the same time, you are reevaluating your past.
You are thinking of the things you have done as well as the things that you never achieved. You are thinking about your own mortality