-04:00 to BST Converter

Offset: -04:00 is 4 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Bermuda, Bolivia, Brazil, British Virgin Islands, Canada, Caribbean Netherlands, Chile, Cuba, Curaçao, Dominica, Dominican Republic, Greenland, Grenada, Guadeloupe, Guyana, Haiti, Martinique, Montserrat, Puerto Rico, Saint Barthélemy, Saint Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, Turks and Caicos Islands, United States, US Virgin Islands, Venezuela

Principal Cities: The largest city in the -04:00 time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Santiago, Caracas, Toronto, Manaus.

Daylight Saving: Some places on -04:00 GMT (-04:00) keep the same time all year, while others use -04:00 for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.

Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom

Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.

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 the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Current time in the United Kingdom: UK time now