Hi!
I am in the lab at the moment, so I will have to answer this when I get home.
Thanks. For example, at the current rate and direction of expansion of our particular region of the universe from the moment of the Bang Bang all of the light emitted at the moment of the Big Bang in the same direction that we're traveling would long ago have passed us by. For the expanding universe 180 degrees opposite to our direction of expansion, there would exist a point in time after which any light being emitted in our direction of expansion would have already passed us. What fraction of the proposed age of the universe is represented by that point?