Liste des pays ayant ce décalage par rapport à GMT/UTC
| GMT | Timezone | Nom du fuseau horaire | Pays | Capitale |
|---|---|---|---|---|
| GMT - 04:00 | AST | America/Anguilla | Anguilla | The Valley |
| GMT - 04:00 | AST | America/Antigua | Antigua et Barbuda | Saint John's |
| GMT - 04:00 | AST | America/Aruba | Aruba | Oranjestad |
| GMT - 04:00 | AST | America/Barbados | Barbade | Bridgetown |
| GMT - 04:00 | ADT | Atlantic/Bermuda | Bermudes | Hamilton |
| GMT - 04:00 | BOT | America/La_Paz | Bolivie | Sucre |
| GMT - 04:00 | AST | America/Kralendijk | Bonaire, Saint Eustatius and Saba | Playa |
| GMT - 04:00 | AST | America/Curacao | Country of Curaçao | Willemstad |
| GMT - 04:00 | AST | America/Dominica | Dominique | Roseau |
| GMT - 04:00 | AST | America/Grenada | Grenade | Saint-Georges |
| GMT - 04:00 | AST | America/Guadeloupe | Guadeloupe | Basse-Terre |
| GMT - 04:00 | GYT | America/Guyana | Guyana | Georgetown |
| GMT - 04:00 | AST | America/Grand_Turk | Îles Turques-et-Caïques | Cockburn Town |
| GMT - 04:00 | AST | America/Tortola | Îles Vierges britanniques | Road Town |
| GMT - 04:00 | AST | America/St_Thomas | Îles Vierges des États-Unis | Charlotte Amalie |
| GMT - 04:00 | AST | America/Martinique | Martinique | Fort-de-France |
| GMT - 04:00 | AST | America/Montserrat | Montserrat | Plymouth |
| GMT - 04:00 | PYT | America/Asuncion | Paraguay | Asunción |
| GMT - 04:00 | AST | America/Puerto_Rico | Porto Rico | San Juan |
| GMT - 04:00 | AST | America/Santo_Domingo | République Dominicaine | Ciudad Trujillo |
| GMT - 04:00 | AST | America/St_Barthelemy | Saint-Barthélémy | Gustaf |
| GMT - 04:00 | AST | America/St_Kitts | Saint-Christophe-et-Niévès | Basseterre |
| GMT - 04:00 | AST | America/St_Vincent | Saint-Vincent-et-les Grenadines | Kingstown |
| GMT - 04:00 | AST | America/St_Lucia | Sainte-Lucie | Castries |
| GMT - 04:00 | AST | America/Lower_Princes | Sint Maarten | Great Bay |
| GMT - 04:00 | AST | America/Port_of_Spain | Trinidad et Tobago | Port-d'Espagne |