| Time zone abbreviations |
| Abbreviation | Full name | Location | Time zone |
|---|---|---|---|
| A | Alpha Time Zone | Military | UTC + 1 hour |
| ACDT | Australian Central Daylight Time | Australia | UTC + 10:30 hours |
| ACST | Australian Central Standard Time | Australia | UTC + 9:30 hours |
| ADT | Atlantic Daylight Time | North America | UTC - 3 hours |
| AEDT | Australian Eastern Daylight Time | Australia | UTC + 11 hours |
| AEST | Australian Eastern Standard Time | Australia | UTC + 10 hours |
| AKDT | Alaska Daylight Time | North America | UTC - 8 hours |
| AKST | Alaska Standard Time | North America | UTC - 9 hours |
| AST | Atlantic Standard Time | North America | UTC - 4 hours |
| AWDT | Australian Western Daylight Time | Australia | UTC + 9 hours |
| AWST | Australian Western Standard Time | Australia | UTC + 8 hours |
| B | Bravo Time Zone | Military | UTC + 2 hours |
| BST | British Summer Time | Europe | UTC + 1 hour |
| C | Charlie Time Zone | Military | UTC + 3 hours |
| CDT | Central Daylight Time | North America | UTC - 5 hours |
| CEDT | Central European Daylight Time | Europe | UTC + 2 hours |
| CEST | Central European Summer Time | Europe | UTC + 2 hours |
| CET | Central European Time | Europe | UTC + 1 hour |
| CST | Central Summer(Daylight) Time | Australia | UTC + 10:30 hours |
| CST | Central Standard Time | Australia | UTC + 9:30 hours |
| CST | Central Standard Time | North America | UTC - 6 hours |
| CXT | Christmas Island Time | Australia | UTC + 7 hours |
| D | Delta Time Zone | Military | UTC + 4 hours |
| E | Echo Time Zone | Military | UTC + 5 hours |
| EDT | Eastern Daylight Time | North America | UTC - 4 hours |
| EEDT | Eastern European Daylight Time | Europe | UTC + 3 hours |
| EEST | Eastern European Summer Time | Europe | UTC + 3 hours |
| EET | Eastern European Time | Europe | UTC + 2 hours |
| EST | Eastern Summer(Daylight) Time | Australia | UTC + 11 hours |
| EST | Eastern Standard Time | Australia | UTC + 10 hours |
| EST | Eastern Standard Time | North America | UTC - 5 hours |
| F | Foxtrot Time Zone | Military | UTC + 6 hours |
| G | Golf Time Zone | Military | UTC + 7 hours |
| GMT | Greenwich Mean Time | Europe | UTC |
| H | Hotel Time Zone | Military | UTC + 8 hours |
| HAA | Heure Avancee de l'Atlantique | North America | UTC - 3 hours |
| HAC | Heure Avancee du Centre | North America | UTC - 5 hours |
| HADT | Hawaii-Aleutian Daylight Time | North America | UTC - 9 hours |
| HAE | Heure Avancee de l'Est | North America | UTC - 4 hours |
| HAP | Heure Avancee du Pacifique | North America | UTC - 7 hours |
| HAR | Heure Avancee des Rocheuses | North America | UTC - 6 hours |
| HAST | Hawaii-Aleutian Standard Time | North America | UTC - 10 hours |
| HAT | Heure Avancee de Terre-Neuve | North America | UTC - 2:30 hours |
| HAY | Heure Avancee du Yukon | North America | UTC - 8 hours |
| HNA | Heure Normale de l'Atlantique | North America | UTC - 4 hours |
| HNC | Heure Normale du Centre | North America | UTC - 6 hours |
| HNE | Heure Normale de l'Est | North America | UTC - 5 hours |
| HNP | Heure Normale du Pacifique | North America | UTC - 8 hours |
| HNR | Heure Normale des Rocheuses | North America | UTC - 7 hours |
| HNT | Heure Normale de Terre-Neuve | North America | UTC - 3:30 hours |
| HNY | Heure Normale du Yukon | North America | UTC - 9 hours |
| I | India Time Zone | Military | UTC + 9 hours |
| IST | Irish Summer Time | Europe | UTC + 1 hour |
| K | Kilo Time Zone | Military | UTC + 10 hours |
| L | Lima Time Zone | Military | UTC + 11 hours |
| M | Mike Time Zone | Military | UTC + 12 hours |
| MDT | Mountain Daylight Time | North America | UTC - 6 hours |
| MESZ | Mitteleuroaische Sommerzeit | Europe | UTC + 2 hours |
| MEZ | Mitteleuropaische Zeit | Europe | UTC + 1 hour |
| MST | Mountain Standard Time | North America | UTC - 7 hours |
| N | November Time Zone | Military | UTC - 1 hour |
| NDT | Newfoundland Daylight Time | North America | UTC - 2:30 hours |
| NFT | Norfolk (Island) Time | Australia | UTC + 11:30 hours |
| NST | Newfoundland Standard Time | North America | UTC - 3:30 hours |
| O | Oscar Time Zone | Military | UTC - 2 hours |
| P | Papa Time Zone | Military | UTC - 3 hours |
| PDT | Pacific Daylight Time | North America | UTC - 7 hours |
| PST | Pacific Standard Time | North America | UTC - 8 hours |
| Q | Quebec Time Zone | Military | UTC - 4 hours |
| R | Romeo Time Zone | Military | UTC - 5 hours |
| S | Sierra Time Zone | Military | UTC - 6 hours |
| T | Tango Time Zone | Military | UTC - 7 hours |
| U | Uniform Time Zone | Military | UTC - 8 hours |
| UTC | Coordinated Universal Time | Europe | UTC |
| V | Victor Time Zone | Military | UTC - 9 hours |
| W | Whiskey Time Zone | Military | UTC - 10 hours |
| WEDT | Western European Daylight Time | Europe | UTC + 1 hour |
| WEST | Western European Summer Time | Europe | UTC + 1 hour |
| WET | Western European Time | Europe | UTC |
| WST | Western Summer(Daylight) Time | Australia | UTC + 9 hours |
| WST | Western Standard Time | Australia | UTC + 8 hours |
| X | X-ray Time Zone | Military | UTC - 11 hours |
| Y | Yankee Time Zone | Military | UTC - 12 hours |
| Z | Zulu Time Zone | Military | UTC |
