Diomede Islands, a practically possible time-travel scenario?

For those who don't know what and where Diomede Islands are. They are small Islands, located on the Bering sea. One called Little Diomede Island fall in Alaska, USA and other one called Big Diomede Island falls in Siberia, Russia. The shortest distance between those two are roughly two miles. 

Picture taken from North of the islands, On the left is Little Island which is in USA and right is the big island in Russia.

Here is a small fun fact
On the west edge of Little Diomede Island in Alaska, there is a small town called Diomede, AK which has a population of about 125. In winter time, the Bering waters around that area get frozen, and some residents of Diomede, AK like to take a short walk on the frozen sea waters to Russia. Off course, Russia does not like it, but they know that the island in Siberia is remote and no one lives there so people walking into Russia to feel good about themselves is not a concern for Russian authorities.


Here is the actual fun part
The Big Diomede Island is 23 hours ahead of Little Diomede Island. Which means whatever time it is right now in Little Diomede Island in Alaska, its about the same time next day in Big Diomede Island in Siberia, Russia. So right now as of me writing this post, its 10:30 PM in Diomede, AK Saturday. It is 9:30 PM Sunday in Big Island.

Can travelling from Big island to Little island be considered as a "Back to the future" travel?