20th meridian east
The meridian 20° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Africa, the Atlantic and Indian oceans, the Southern Ocean, and Antarctica to the South Pole.
Part of Namibia's borders with Botswana and South Africa are defined by the meridian. The boundary between the Atlantic Ocean and the Indian Ocean is defined by the meridian. The meridian defines the eastern limit of the New Swabia area in Queen Maud Land, Antarctica.
From Pole to Pole 
Co-ordinates Country, territory or sea Notes Arctic Ocean Norway Islands of Nordaustlandet and Spitsbergen, Svalbard Barents Sea Atlantic Ocean Norwegian Sea Norway Island of Vanna, and the mainland Sweden For about 2km Norway For about 18km Sweden Baltic Sea Gulf of Bothnia Åland Islands Island of Fasta Åland Baltic Sea Russia Kaliningrad exclave Poland Slovakia Passes through the mountain of Kriváň Hungary Serbia Montenegro Albania Mediterranean Sea Ionian Sea Greece Island of Corfu Mediterranean Sea Ionian Sea and the Mediterranean proper Libya Mediterranean Sea Gulf of Sidra Libya Chad Central African Republic Democratic Republic of the Congo Angola Namibia Namibia / Botswana border Namibia / South Africa (Northern Cape) border South Africa Northern Cape
Atlantic Ocean / Indian Ocean boundary Southern Ocean Antarctica Queen Maud Land, claimed by Norway
See also