Elon Musk has posted a video on his X page describing the geographical proximity of Russia and the United States.

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 ...

Instead, you'll be crossing time zones until you reach a different part of the world altogether, and if you head for the Diomede Islands, then you can do a lot of travelling with very little distance.