List of Time Zone names with their abbreviations, UTC Offset and its location for Standard Time and Daylight Saving Time (DST) across the world.
| Abbreviation | Time Zone Name | Offset |
|---|---|---|
| ADST | Atlantic Daylight Saving Time | UTC -3 |
| AST | Atlantic Summer Time | UTC -3 |
| AT | Atlantic Time | UTC -4 |
| AZODT | Azores Daylight Time | UTC +0 |
| AZOST | Azores Summer Time | UTC +0 |
| AZOST | Azores Standard Time | UTC -1 |
| AZOT | Azores Time | UTC -1 |
| HAA | Heure Avancee De L'Atlantique (French) | UTC -3 |