I remember a story, I think it was by Asimov, that had as a plot point the difficulty of communicating with someone on Neptune. With the 8-hour turn around time, it was impossible to get anything done by phone. The protagonist's mother, by contrast, had no trouble with it; she just chatted away with her pals on Neptune all day long. Her secret was just to talk and to listen by periodic turns. In principle it takes eight hours to get a response to a question, but if you both just keep talking, you find that many of the answers show up ahead of time anyway.
Cool. WOW!!! A science fiction story I did not read. LOL! :-)
I went back and read my post! Sigh! I need to proof read more. I was in an awful hurry. My grammar stank in this one. :-(