I briefly didn't get the time scene difference, until I said to my friend. Why is it dark in France it's only an hour ahead. When I noticed Cillian Murphy was on both the small boat and a rescue Row boat, it twigged.
It did seem strange in parts because everytime I thought I was watching another boat go down, it was the same minesweeper from several perspectives. The many bombers I kept seeing was actually only the same one with the same 2/3 Spitfires behind.
Simarly the ending in what looked like a circling plane with no engine power, was actually just the plane from 3 different angles going in a straight line.
I think it needs a second viewing to make it easier to appreciate those connections.