if you wanted for people to actually finish, then please change it to 30 seconds. Even if you type in the six island nations, there's still the mainland to do.
Has anyone ever finished? The stats say 0.2% got 52/54 and 0% got 53/54 or 54/54, but I don't know if that's rounded down. Perhaps a mainland-only version with 10 seconds might be v difficult but achievable (is 10sec time possible?)