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 | Alaska Daylight Saving Time | UTC -8 |
| ADT | Atlantic Daylight Time | UTC -3 |
| AKDT | Alaska Daylight Time | UTC -8 |
| AKST | Alaska Standard Time | UTC -9 |
| AST | Atlantic Standard Time | UTC -4 |
| AT | Alaska Time | UTC -9 |
| CDST | Central Daylight Saving Time | UTC -5 |
| CDT | Central Daylight Time | UTC -5 |
| CST | Central Standard Time | UTC -6 |
| EDT | Eastern Daylight Time | UTC -4 |
| EGST | Eastern Greenland Summer Time | UTC +0 |
| EGST | East Greenland Summer Time | UTC +0 |
| EGT | East Greenland Time | UTC -1 |
| EGT | Eastern Greenland Time | UTC -1 |
| EST | Eastern Standard Time | UTC -5 |
| HAC | Heure Avancee Du Centre (French) | UTC -5 |
| HADT | Hawaii Daylight Time | UTC -9 |
| HAP | Heure Avancee Du Pacifique (French) | UTC -7 |
| HAR | Heure Avancee Des Rocheuses (French) | UTC -6 |
| HAT | Heure Avancee De Terre-Neuve (French) | UTC -2:30 |
| HDT | Hawaii-Aleutian Daylight Time | UTC -9 |
| HNP | Heure Normale Du Pacifique (French) | UTC -8 |
| HNR | Heure Normale Des Rocheuses (French) | UTC -7 |
| HNT | Heure Normale De Terre-Neuve (French) | UTC -3:30 |
| HST | Hawaii Standard Time | UTC -10 |
| MDST | Mountain Daylight Saving Time | UTC -6 |
| MDT | Mountain Daylight Time | UTC -6 |
| MST | Mountain Standard Time | UTC -7 |
| MT | Mountain Time | UTC -7:00 / -6:00 |
| MT | Mountain Time | UTC -7 |
| NACDT | North American Central Daylight Time | UTC -5 |
| NAMDT | North American Mountain Daylight Time | UTC -6 |
| NAMST | North American Mountain Standard Time | UTC -7 |
| NAPDT | North American Pacific Daylight Time | UTC -7 |
| NAPST | North American Pacific Standard Time | UTC -8 |
| NDT | Newfoundland Daylight Time | UTC -2:30 |
| NST | Newfoundland Standard Time | UTC -3:30 |
| PDST | Pacific Daylight Saving Time | UTC -7 |
| PDT | Pacific Daylight Time | UTC -7 |
| PMDT | Pierre & Miquelon Daylight Time | UTC -2 |
| PMST | Pierre & Miquelon Standard Time | UTC -3 |
| PST | Pacific Standard Time | UTC -8 |
| PT | Pacific Time | UTC -8 |
| PT | Tiempo Del Pacifico (Spanish) | UTC -8 |
| PT | Pacific Time | UTC -8:00 / -7:00 |
| WGST | Western Greenland Summer Time | UTC -2 |
| WGST | West Greenland Summer Time | UTC -2 |
| WGT | West Greenland Time | UTC -3 |
| WGT | Western Greenland Time | UTC -3 |