The problem with the per turn instead of per move time limit…
You allow 5 days for a turn.
The Axis player waits 4 1/2 days then posts their Germany move.
Now the Allies have to go twice, and the axis once, in 12 hours, or the game gets a delay notice… most likely against the Allied player who’s turn would be due next eventhough it was the Axis player who chewed up nearly all of the 5 day time limit for the turn.