Now, I have instructions to ring someone at dinnertime in America. Here in England, with our complex class system, dinnertime might mean 12-2PMish( mid middle class and lower) or possibly 8PMish(upper middle class and upwards. Now, what does it mean in American? When should I ring(I have figured out how to make allowance for the time zone stuff). In case there are geographical variations in usage, said person is in Minnesota I think.