4 Days to WorldCon in London and Counting

Or is it 5.  I suppose it is all in the matter of how you decide to count the time.  Since Sunday is just barely begun, we should count today.  And LonCon begins on Thursday.  So that makes Sunday, Monday, Tuesday, Wednesday, and half of Thursday.  That's 4.5 days.  But then again, we fly out tomorrow afternoon and we arrive Tuesday morning, and in the process we loose a day.  So does that make 3.5 days? In either case, it's not 5.  And we do gain a day on the flight back.

Time travel can be very confusing.