AFT to BST Converter

Offset: AFT is 4 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Afghanistan

Principal Cities: The largest city in the AFT time zone is Kabul in Afghanistan, with about 3.044 million people. Other major cities in this time zone include Kandahar, Mazar e Sharif, Herat, Jalalabad.

Daylight Saving: Clocks in Afghanistan Time (AFT) do not change for daylight saving time, so AFT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey

Principal Cities: The largest city in the BST time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.