| ACDT | Australian Central Daylight Saving Time |
| ACST | Australian Central Standard Time |
| ACT | Acre Time |
| ACT | ASEAN Common Time |
| ACWST | Australian Central Western Standard Time |
| ADT | Atlantic Daylight Time |
| AEDT | Australian Eastern Daylight Saving Time |
| AEST | Australian Eastern Standard Time |
| AET | Australian Eastern Time |
| AFT | Afghanistan Time |
| AKDT | Alaska Daylight Time |
| AKST | Alaska Standard Time |
| ALMT | Alma-Ata Time |
| AMST | Amazon Summer Time |
| AMT | Amazon Time |
| AMT | Armenia Time |
| ANAT | Anadyr Time |
| AQTT | Aqtobe Time |
| ART | Argentina Time |
| AST | Arabia Standard Time |
| AST | Atlantic Standard Time |
| AWST | Australian Western Standard Time |
| AZOST | Azores Summer Time |
| AZOT | Azores Standard Time |
| AZT | Azerbaijan Time |
| BDT | Brunei Time |
| BIOT | British Indian Ocean Time |
| BIT | Baker Island Time |
| BOT | Bolivia Time |
| BRST | BrasÃlia Summer Time |
| BRT | BrasÃlia Time |
| BST | Bangladesh Standard Time |
| BST | Bougainville Standard Time |
| BST | British Summer Time |
| BTT | Bhutan Time |
| CAT | Central Africa Time |
| CCT | Cocos Islands Time |
| CDT | Central Daylight Time |
| CDT | Cuba Daylight Time |
| CEST | Central European Summer Time |
| CET | Central European Time |
| CHADT | Chatham Daylight Time |
| CHAST | Chatham Standard Time |
| CHOT | Choibalsan Standard Time |
| CHOST | Choibalsan Summer Time |
| CHST | Chamorro Standard Time |
| CHUT | Chuuk Time |
| CIST | Clipperton Island Standard Time |
| CIT | Central Indonesia Time |
| CKT | Cook Island Time |
| CLST | Chile Summer Time |
| CLT | Chile Standard Time |
| COST | Colombia Summer Time |
| COT | Colombia Time |
| CST | Central Standard Time |
| CST | China Standard Time |
| CST | Cuba Standard Time |
| CT | China Time |
| CVT | Cape Verde Time |
| CWST | Central Western Standard Time |
| CXT | Christmas Island Time |
| DAVT | Davis Time |
| DDUT | Dumont d’Urville Time |
| DFT | AIX-specific equivalent of Central European Time |
| EASST | Easter Island Summer Time |
| EAST | Easter Island Standard Time |
| EAT | East Africa Time |
| ECT | Eastern Caribbean Time |
| ECT | Ecuador Time |
| EDT | Eastern Daylight Time |
| EEST | Eastern European Summer Time |
| EET | Eastern European Time |
| EGST | Eastern Greenland Summer Time |
| EGT | Eastern Greenland Time |
| EIT | Eastern Indonesian Time |
| EST | Eastern Standard Time |
| FET | Further-eastern European Time |
| FJT | Fiji Time |
| FKST | Falkland Islands Summer Time |
| FKT | Falkland Islands Time |
| FNT | Fernando de Noronha Time |
| GALT | Galápagos Time |
| GAMT | Gambier Islands Time |
| GET | Georgia Standard Time |
| GFT | French Guiana Time |
| GILT | Gilbert Island Time |
| GIT | Gambier Island Time |
| GMT | Greenwich Mean Time |
| GST | South Georgia and the South Sandwich Islands Time |
| GST | Gulf Standard Time |
| GYT | Guyana Time |
| HDT | Hawaii–Aleutian Daylight Time |
| HAEC | Heure Avancée d’Europe Centrale French-language name for CEST |
| HST | Hawaii–Aleutian Standard Time |
| HKT | Hong Kong Time |
| HMT | Heard and McDonald Islands Time |
| HOVST | Hovd Summer Time |
| HOVT | Hovd Time |
| ICT | Indochina Time |
| IDLW | International Day Line West time zone |
| IDT | Israel Daylight Time |
| IOT | Indian Ocean Time |
| IRDT | Iran Daylight Time |
| IRKT | Irkutsk Time |
| IRST | Iran Standard Time |
| IST | Indian Standard Time |
| IST | Irish Standard Time |
| IST | Israel Standard Time |
| JST | Japan Standard Time |
| KALT | Kaliningrad Time |
| KGT | Kyrgyzstan Time |
| KOST | Kosrae Time |
| KRAT | Krasnoyarsk Time |
| KST | Korea Standard Time |
| LHST | Lord Howe Standard Time |
| LHST | Lord Howe Summer Time |
| LINT | Line Islands Time |
| MAGT | Magadan Time |
| MART | Marquesas Islands Time |
| MAWT | Mawson Station Time |
| MDT | Mountain Daylight Time |
| MET | Middle European Time Same zone as CET |
| MEST | Middle European Summer Time Same zone as CEST |
| MHT | Marshall Islands Time |
| MIST | Macquarie Island Station Time |
| MIT | Marquesas Islands Time |
| MMT | Myanmar Standard Time |
| MSK | Moscow Time |
| MST | Malaysia Standard Time |
| MST | Mountain Standard Time |
| MUT | Mauritius Time |
| MVT | Maldives Time |
| MYT | Malaysia Time |
| NCT | New Caledonia Time |
| NDT | Newfoundland Daylight Time |
| NFT | Norfolk Island Time |
| NOVT | Novosibirsk Time |
| NPT | Nepal Time |
| NST | Newfoundland Standard Time |
| NT | Newfoundland Time |
| NUT | Niue Time |
| NZDT | New Zealand Daylight Time |
| NZST | New Zealand Standard Time |
| OMST | Omsk Time |
| ORAT | Oral Time |
| PDT | Pacific Daylight Time |
| PET | Peru Time |
| PETT | Kamchatka Time |
| PGT | Papua New Guinea Time |
| PHOT | Phoenix Island Time |
| PHT | Philippine Time |
| PKT | Pakistan Standard Time |
| PMDT | Saint Pierre and Miquelon Daylight Time |
| PMST | Saint Pierre and Miquelon Standard Time |
| PONT | Pohnpei Standard Time |
| PST | Pacific Standard Time |
| PST | Philippine Standard Time |
| PYST | Paraguay Summer Time |
| PYT | Paraguay Time |
| RET | Réunion Time |
| ROTT | Rothera Research Station Time |
| SAKT | Sakhalin Island Time |
| SAMT | Samara Time |
| SAST | South African Standard Time |
| SBT | Solomon Islands Time |
| SCT | Seychelles Time |
| SDT | Samoa Daylight Time |
| SGT | Singapore Time |
| SLST | Sri Lanka Standard Time |
| SRET | Srednekolymsk Time |
| SRT | Suriname Time |
| SST | Samoa Standard Time |
| SST | Singapore Standard Time |
| SYOT | Showa Station Time |
| TAHT | Tahiti Time |
| THA | Thailand Standard Time |
| TFT | French Southern and Antarctic Time |
| TJT | Tajikistan Time |
| TKT | Tokelau Time |
| TLT | Timor Leste Time |
| TMT | Turkmenistan Time |
| TRT | Turkey Time |
| TOT | Tonga Time |
| TVT | Tuvalu Time |
| ULAST | Ulaanbaatar Summer Time |
| ULAT | Ulaanbaatar Standard Time |
| UTC | Coordinated Universal Time |
| UYST | Uruguay Summer Time |
| UYT | Uruguay Standard Time |
| UZT | Uzbekistan Time |
| VET | Venezuelan Standard Time |
| VLAT | Vladivostok Time |
| VOLT | Volgograd Time |
| VOST | Vostok Station Time |
| VUT | Vanuatu Time |
| WAKT | Wake Island Time |
| WAST | West Africa Summer Time |
| WAT | West Africa Time |
| WEST | Western European Summer Time |
| WET | Western European Time |
| WIT | Western Indonesian Time |
| WGST | West Greenland Summer Time |
| WGT | West Greenland Time |
| WST | Western Standard Time |
| YAKT | Yakutsk Time |
| YEKT | Yekaterinburg Time |