Greenwich Mean Time (GMT) is also known as Zulu Time. It refers to the mean solar time at the Royal Obervatory in Greenwich, London, UK.
It is widely used as an international standard time as the same as the Coordinated Universal Time (UTC) which was introduced in 1972.
GMT is observed in several west Europe and Africa countries.
Regions observe GMT in winter:
• UK, Ireland, Iceland, Portugal, Morocco, West Sahara.
Regions observe GMT all year long:
• Mauritania, Mali, Senegal, The Gambia, Guinea Bissau, Tuinea, Sierra Leone,
Liberia, Ivory Coast, Ghana, Togo.
• Get converter between Greenwich Mean Time and specific time zone: