It is located partly in Eastern Europe and partly in North Asia; it borders the Arctic Ocean to the north. Russia is bordered by 14 countries, Azerbaijan, Belarus, China, Estonia, Finland, Georgia, Kazakhstan, North Korea, Latvia, Lithuania, Mongolia, Norway, Poland, and Ukraine. It also shares maritime borders with Japan, Sweden, Turkey, and the United States. The largest country in the world, Russia constitutes one-seventh of the world's landmass and spans eight time zones.