Länder mit der Zeitzone Greenwich Mean Time GMT
- Burkina Faso
- Ivory Coast
- Gambia
- Ghana
- Guinea
- Guinea-Bissau
- Ireland
- Liberia
- Mali
- Mauritania
- São Tomé and Príncipe
- Senegal
- Sierra Leone
- Togo
- United Kingdom
Greenwich Mean Time served as the world time standard from 1884 to 1928. In 1972, Greenwich Mean Time was replaced as the world time standard by Coordinated Universal Time (UTC).