With just 3.8 kilometers (2.4 miles) between them, the Diomede Islands mark the closest point between the two countries. On the Russian side is Big Diomede, which is just over 10 square kilometers ...

But no others have a time different quite like the Diomede Islands. The US-Russian border and the International Date Line divide the two tiny islands known as the Diomede Islands in the Bering Strait.