
The map above shows the Diomede Islands where the distance between the Russia on Big Diomede Island and The United States on Little Diomede Island is just over 2 miles.
They are also on opposite sides of the International Date line, although the Russian side is just 21 hours ahead of the United States rather than 24 because of how they’ve chosen to adopt Time Zones.
But this does mean when it’s 1am on Monday morning on the Russian side, it’s just 4am Sunday morning on the American side.
More about the islands.
The Diomede Islands are a pair of small, remote islands set in the middle of the Bering Strait that separates mainland Alaska (USA) from Siberia (Russia).
Despite their tiny size and isolation, they have a rich tapestry of history, culture, and geography that makes them uniquely fascinating. Here’s an overview of what makes the Diomede Islands so interesting:

1. Geographic Overview
- Location and Composition:
The islands consist of two parts:- Little Diomede: Located on the U.S. side, this island is home to a small, resilient Inupiat community.
- Big Diomede: On the Russian side, this larger island is uninhabited today and is monitored by Russian border authorities.
- Proximity and the International Date Line:
The islands lie only about 2.4 miles (approximately 3.8 kilometers) apart—a distance so short that on a clear day, one might see across the strait from one island to the other. However, the International Date Line runs between them, creating an almost full-day time difference. This curious situation has earned them the nicknames “Tomorrow Island” (Big Diomede) and “Yesterday Island” (Little Diomede). - Climate and Environment:
Both islands experience an Arctic maritime climate. Winters are long and harsh, with temperatures dropping well below freezing, while summers are brief and cool. The surrounding waters are heavily influenced by sea ice, especially in the colder months, which plays a significant role in local transportation and ecology. - Geology and Tectonics:
The rugged terrain of the Diomede Islands reflects their geologic past. Shaped by glacial activity and positioned near the boundary between the North American and Eurasian tectonic plates, they offer insights into the dynamic geological forces at work in the region.

2. Historical and Cultural Background
- Indigenous Heritage:
The islands have been inhabited for thousands of years by indigenous peoples, primarily the Inupiat. Their traditional lifestyle—centered on fishing, hunting marine mammals, and gathering—has adapted to the demanding Arctic conditions, and many cultural traditions persist to this day, particularly on Little Diomede. - European Discovery and Naming:
European explorers, notably during the voyages led by Vitus Bering in the 18th century, first documented the islands. They were named “Diomede” after a figure from Greek mythology, though local indigenous names and traditions long preceded this European renaming. - Cold War Significance:
In the 20th century, the islands became symbolic during the Cold War:- Big Diomede was used as a Soviet military outpost, reinforcing its role as a frontier of the USSR.
- Little Diomede remained a small American village, largely cut off from its larger neighbor.
The stark contrast between the two—only a few miles apart yet divided by national borders and a full day’s difference in time—turned the Diomede Islands into a powerful symbol of geopolitical division.
- Post-Cold War Developments:
With the collapse of the Soviet Union, Big Diomede’s military significance waned, and the island is now largely uninhabited. Meanwhile, the community on Little Diomede continues to live a traditional subsistence lifestyle, facing modern challenges such as climate change and limited access to services.
3. Interesting Geographic and Cultural Facts
- A Tale of Two Islands in Time:
Because the International Date Line runs between them, the islands “live” in different times. For example, when it’s Tuesday on Big Diomede, it might still be Monday on Little Diomede—a fact that has captivated the imagination of many and is often cited in discussions about time, borders, and human perception. - Natural Beauty and Ecological Importance:
The Bering Strait is a rich ecological zone with abundant marine life, including migratory birds and marine mammals. The islands themselves, though small, are part of this unique ecosystem and contribute to our understanding of Arctic biodiversity. - Cultural Resilience:
The people of Little Diomede maintain a way of life that has endured for generations. Their reliance on traditional hunting and fishing, coupled with deep cultural practices, provides a living window into life in one of the most challenging environments on Earth. - Symbol of Global Divides:
The Diomede Islands are often highlighted in literature, documentaries, and academic studies as a microcosm of how geography and politics can intersect. Their dramatic demonstration of how political boundaries can create vast cultural and temporal divides—despite negligible physical distance—makes them a potent symbol in global discourse. - Strategic and Future Considerations:
As climate change alters Arctic conditions, including the extent and duration of sea ice, regions like the Bering Strait may experience significant ecological and economic shifts. The Diomede Islands, therefore, not only offer a historical and cultural snapshot but might also be indicative of broader changes occurring in the Arctic region.
Would you want to visit them if you could?








Jonathan Wadman says
The Diomedes feature in one of the more far-flung, if not far-fetched, subplots in ‘Further Tales of the City’ by Armistead Maupin.
Steve Curmode says
To put it into perspective, Canada and the US are less than 1 atom apart, ultimately every place is some level of next door.
B E N says
I’m sure the inhabitants are really concerned about climate change. Not.
Robert Frank Williams says
Are there any road maps / freeway maps of the streets in Little Diomede Island City?
I have never seen one posted on the Internet, nor Rand McNalley.
I am a map collector!