We were talking specifically about time.
But let's look at your example. When you measure the circumference of a globe you pick a spot and measure from there around and back to the same spot. So there IS a beginning and and ending point to your measurement, it just happens to be the same spot because it's circular. Try selecting a spot to begin, but don't select a spot to end. How big around is your globe? It's meaningless, the distance would be infinite unless you have an ending spot.
So similarly... the fact that you can express the size in inches, feet, miles, etc. proves that you started and ended somewhere. If it's circular the starting and ending point could be the same point, but time is linear so it has to be two different points.
There might be other differences, I haven't really thought about it in terms of "distance" rather than "time", but I don't think this specific example disproves my theory.
Aries
~Sign of the Rams