Here are Larry’s thoughts on the subject (from his forums):
“Time” in this game is like a rubberband. I’m not telling you definitively that these events are taking place in June 1940, and here’s snapshot of the military situation. I can’t! It doesn’t work for the Axis & Allies I know and love. If it did, ships would be able to move a lot more than 2 spaces per turn. If it did, aircraft could have made their way around the world a couple of times during a round. I kind of start the game at a stated date, a date with some historical significance. I try to represent the game’s world in its political divides or territories for the stated starting date. You, as the player, can expect certain historical events to be part of the story. Where time goes from there is anybody’s guess. It’s a rubberband. Like a rubberband sometimes “time” is expanded and sometimes it’s contracted. I go from macro to micro in a micro second, if you can measure time in those realms.
Often people ask me what a round represents in time. To keep it simple, I respond that a round is roughly 3 or 4 months. A lot of times the game seems to follow that time logic. If a round really was 3 or 4 months it would take around (6.3 call it) 7 rounds to go from June 1940 to December 1941. Two very distinct dates in this game. I immediately concluded that from an “enjoyment” point of view, 6 or 7 rounds was too many rounds to go through before getting all the powers in the fight. As it is now, the last possible holdout, Russia, can go to war on turn 4 should the Germans not attack them before then. There’s one good example of game-play trumping history/time.
I’m happy if I can get historical events to occur in chronological order. You know… Battle of France, Battle of Britain, Barbarossa, Pearl Harbor and so… I don’t even consider all the powers to be in the same time frame when they are all going through their first turns. I can’t… When Germany takes its first turn in the Global game the clock has already starting ticking. By the time Japan’s first turn comes around the world is already a different place. French Indo-China has no mother country any longer. Who can say what the exact date it is at any given moment?