How long does a candidate have to denounce someone?

[SuperDemocrat]

What is the maximum time limit allowed to denounce a KKK endorsement before the candidate himself is considered a member of that organization? Is it like five minutes, instantaneous, three days, etc, etc. If you choose a value like 2100 minutes from the time it occurs would you be less of a racist if you did it at 2099 vs 2101? And if you did it in 5 minutes why not at 4 minutes? An instant condemnation would be the only answer because if a candidate denounces it at 30 seconds the one who does it at 29 is less racist. The problem with that is how do we do instant condemnations in the universe where instantaneous communication is impossible. I think we might have advance theoretical physicist tell us this answer.