Timezone abbreviations

Abbreviations are not unique: IST is India, Ireland and Israel; CST is Central, China and Cuba. Each page lists every zone that uses the letters, so you can check you have the right one.

• ACSTAustralian Central Time2 zones
• ACTAcre Time1 zone
• ACWSTAustralian Central Western Time1 zone
• AESTAustralian Eastern Time2 zones
• AFTAfghanistan Time1 zone
• AKSTAlaska Time1 zone
• ALMTEast Kazakhstan Time1 zone
• AMTAmazon Time2 zones · ambiguous
• AQTTWest Kazakhstan Time1 zone
• ARTArgentina Time1 zone
• ASTAtlantic Time32 zones · ambiguous
• AWSTAustralian Western Time1 zone
• AZOTAzores Time1 zone
• AZTAzerbaijan Time1 zone
• BNTBrunei Darussalam Time1 zone
• BOTBolivia Time1 zone
• BRTBrasilia Time1 zone
• BSTBangladesh Time2 zones · ambiguous
• BTTBhutan Time1 zone
• CASTCasey Time1 zone
• CATCentral Africa Time11 zones · ambiguous
• CCTCocos Islands Time1 zone
• CETCentral European Time33 zones · ambiguous
• CHASTChatham Time1 zone
• ChSTChamorro Time2 zones · ambiguous
• CHUTChuuk Time1 zone
• CKTCook Islands Time1 zone
• CLTChile Time3 zones · ambiguous
• COTColombia Time1 zone
• CSTCentral Time15 zones · ambiguous
• CVTCape Verde Time1 zone
• CXTChristmas Island Time1 zone
• DAVTDavis Time1 zone
• DDUTDumont-d’Urville Time1 zone
• EASTEaster Island Time1 zone
• EATEast Africa Time10 zones · ambiguous
• ECTEcuador Time1 zone
• EETEastern European Time16 zones · ambiguous
• EGTEast Greenland Time1 zone
• ESTEastern Time10 zones · ambiguous
• FJTFiji Time1 zone
• FKSTFalkland Islands Time1 zone
• FNTFernando de Noronha Time1 zone
• FSATFrench Southern & Antarctic Time1 zone
• GALTGalapagos Time1 zone
• GAMTGambier Time1 zone
• GETGeorgia Time1 zone
• GFTFrench Guiana Time1 zone
• GILTGilbert Islands Time1 zone
• GMTGreenwich Mean Time22 zones · ambiguous
• GMT-7Mexican Pacific Time1 zone
• GMT+3Asia/Amman2 zones · ambiguous
• GSTGulf Time3 zones · ambiguous
• GYTGuyana Time1 zone
• HASTHawaii-Aleutian Time2 zones
• HKTHong Kong Time1 zone
• HOVTHovd Time1 zone
• ICTIndochina Time4 zones · ambiguous
• IOTIndian Ocean Time1 zone
• IRKTIrkutsk Time1 zone
• IRSTIran Time1 zone
• ISTIndia Time3 zones · ambiguous
• JSTJapan Time1 zone
• KGTKyrgyzstan Time1 zone
• KOSTKosrae Time1 zone
• KSTKorean Time2 zones · ambiguous
• LHSTLord Howe Time1 zone
• LINTLine Islands Time1 zone
• MARTMarquesas Time1 zone
• MAWTMawson Time1 zone
• MHTMarshall Islands Time1 zone
• MMTMyanmar Time1 zone
• MSKMoscow Time3 zones · ambiguous
• MSTMountain Time4 zones · ambiguous
• MUTMauritius Time1 zone
• MVTMaldives Time1 zone
• MYTMalaysia Time1 zone
• NCTNew Caledonia Time1 zone
• NFTNorfolk Island Time1 zone
• NOVTNovosibirsk Time1 zone
• NPTNepal Time1 zone
• NRTNauru Time1 zone
• NSTNewfoundland Time1 zone
• NUTNiue Time1 zone
• NZSTNew Zealand Time2 zones · ambiguous
• OMSTOmsk Time1 zone
• PETPeru Time1 zone
• PETTPetropavlovsk-Kamchatski Time1 zone
• PGTPapua New Guinea Time1 zone
• PHOTPhoenix Islands Time1 zone
• PHTPhilippine Time1 zone
• PKTPakistan Time1 zone
• PMSt. Pierre & Miquelon Time1 zone
• PSTPacific Time4 zones · ambiguous
• PWTPalau Time1 zone
• PYTParaguay Time1 zone
• RETRéunion Time1 zone
• SAKTSakhalin Time1 zone
• SAMTSamara Time1 zone
• SASTSouth Africa Time3 zones · ambiguous
• SBTSolomon Islands Time1 zone
• SCTSeychelles Time1 zone
• SGTSingapore Time1 zone
• SRTSuriname Time1 zone
• SSTSamoa Time2 zones · ambiguous
• SYOTSyowa Time1 zone
• TAHTTahiti Time1 zone
• TJTTajikistan Time1 zone
• TKTTokelau Time1 zone
• TLTEast Timor Time1 zone
• TMTTurkmenistan Time1 zone
• TOTTonga Time1 zone
• TRTTurkey Time1 zone
• TVTTuvalu Time1 zone
• TWTTaipei Time1 zone
• ULATUlaanbaatar Time1 zone
• UTCCoordinated Universal Time (UTC)1 zone
• UYTUruguay Time1 zone
• UZTUzbekistan Time1 zone
• VETVenezuela Time1 zone
• VLATVladivostok Time1 zone
• VOSTVostok Time1 zone
• VUTVanuatu Time1 zone
• WAKTWake Island Time1 zone
• WATWest Africa Time11 zones · ambiguous
• WETWestern European Time5 zones · ambiguous
• WFTWallis & Futuna Time1 zone
• WGTWest Greenland Time1 zone
• WIBWestern Indonesia Time1 zone
• WITEastern Indonesia Time1 zone
• WITACentral Indonesia Time1 zone
• WSTApia Time1 zone
• YAKTYakutsk Time1 zone
• YEKTYekaterinburg Time1 zone
• YTYukon Time1 zone