TikTok user has gone viral after explaining how two islands have a 21-hour time difference – despite being just three miles apart.The islands of Big Diomede and Little Diomede are separated by the International Date Line which passes through the Pacific Ocean.It is an imaginary line that runs from the North Pole to the South Pole and marks the boundary between one calendar day and the next.
Big Diomede is almost a day ahead of the smaller island. They are both located in the Bering Strait between mainland Alaska and Siberia with the bigger island on the Russian side and the smaller one on the US side of the line.
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