Left Or Right

 

Key:

Blue = Left Hand Traffic (LHT)

Red = Right Hand Traffic (RHT)

 

Historically:

Afghanistan: Switched to RHT in 1955.

Angola: Switched to RHT in 1928.

Argentina: Switched to RHT in 1945.

Austria: Switched to RHT in 1938 (after Annexation by Nazi Germany.)

Bahrain: Switched to RHT in 1967 (to conform to Neighboring Countries.)

Belgium: Switched to RHT in 1899.

Belize: Switched to RHT in 1962 (to conform to Neighboring Countries.)

Bosnia and Hercegovina: Switched to RHT in 1918 (after collapse of Austro-Hungary.)

Brazil: Switched to RHT in 1928.

Cameroon: Switched to RHT in 1961.

Canada (Alberta, Manitoba, the Northwest Territories, Nunavut, Ontario, Quebec, Saskatchewan and Yukon) Always used RHT.

Canada (British Colombia): Switched to RHT in 1920.

Canada (New Brunswick): Switched to RHT in 1922.

Canada (Newfoundland and Labrador): Switched to RHT in 1947.

Canada (Nova Scotia): Switched to RHT in 1923.

Canada (Prince Edward Island): Switched to RHT in 1924.

Cape Verde: Switched to RHT in 1928.

Chile: Switched to RHT in 1920.

China: Switched to RHT in 1946.

Croatia: Switched to RHT in 1928.

Czech Republic: Switched to RHT in 1939 as Czechoslovakia during Nazi German Occupation.

East Timor: Switched to RHT in 1928 (under Portuguese Rule) and switched to LHT in 1976 (under Indonesian Occupation.)

Eritrea: Switched to RHT in 1964 (under Ethiopian Rule.)

Ethiopia: Switched to RHT in 1964.

Finland: Switched to RHT in 1858 (during Russian Occupation.)

France: Switched to RHT in 1792.

Gambia: Switched to RHT in 1965 (to Conform to Neighboring Country.)

Ghana: Switched to RHT in 1974.

Greece: Switched to RHT in 1928.

Guinea-Bissau: Switched to RHT in 1928 (under Portuguese Rule.)

Hungary: Switched to RHT in 1941.

Iceland: Switched to RHT in 1968.

Italy: Switched to RHT in 1926.

Japan (Okinawa): Used RHT from 1945-1978 under American Rule and Switched to LHT in 1978.

Myanmar: Switched to RHT in 1970.

Namibia: Switched to LHT in 1920 (under South African Rule.)

Nauru: Switched to LHT in 1918 (under Australian Rule.)

The Netherlands: Switched to RHT in 1906.

Nigeria: Switched to RHT in 1972 (to conform with Neighboring Countries.)

North Korea: Switched to RHT in 1945 (after Japanese Occupation.)

Panama: Switched to RHT in 1943.

Paraguay: Switched to RHT in 1946.

The Philippines: Switched to RHT in 1946 (after American Rule.) 

Portugal: Switched to RHT in 1928.

Romania: Switched to RHT in 1919.

Samoa: Switched to LHT in 2009 (for cheaper cars from Australia, New Zealand and Japan.)

Sao Tome and Principe: Switched to RHT in 1928 (under Portuguese Rule.)

Sierra Leone: Switched to RHT in 1961 (to conform with neighboring Countries.)

Slovakia: Switched to RHT in 1939 as Czechoslovakia during Nazi German Occupation.

Slovenia: Switched to RHT in 1926.

South Korea: Switched to RHT in 1946 after Japanese Occupation.

South Sudan: Switched to RHT in 1973 (under Sudanese Rule.)

Spain: Switched to RHT in 1924.

Sudan: Switched to RHT in 1973.

Suriname: Switched to LHT in 1920 under Dutch Rule.

Sweden: Switched to RHT in 1967 (to conform with Neighboring Countries.)

Taiwan: Switched to RHT in 1946 after Japanese Occupation.

United Arab Emirates: Switched to RHT in 1966.

The United Kingdom (Gibraltar): Switched to RHT in 1929 (to conform with Neighboring Countries.)

The United States (US Virgin Islands): Using LHT since it was a Danish Colony until 1917.

Uruguay: Switched to LHT in 1918 and switched back to RHT in 1945.

Yemen: Switched to RHT in 1977.