List of time zone abbreviations


This is a list of time zone abbreviations.
Time zones are often represented by alphabetic abbreviations such as "EST", "WST", and "CST", but these are not part of the international time and date standard ISO 8601 and their use as sole designator for a time zone is discouraged. Such designations can be ambiguous; for example, "CST" can mean China Standard Time, Cuba Standard Time, and Central Standard Time, and it is also a widely used variant of ACST. Such designations predate both ISO 8601 and the internet era; in an earlier era, they were sufficiently unambiguous for many practical uses within a national context, but their ambiguity via polysemy explains their deprecation in the internet era, when communications more often cannot rely on implicit geographic context to supply part of the meaning.
Abbr.NameUTC offset
ACDTAustralian Central Daylight Saving Time
ACSTAustralian Central Standard Time
ACTAcre TimeUTC−05
ACTASEAN Common Time – UTC+09
ACWSTAustralian Central Western Standard Time
ADTAtlantic Daylight TimeUTC−03
AEDTAustralian Eastern Daylight Saving TimeUTC+11
AESTAustralian Eastern Standard TimeUTC+10
AETAustralian Eastern TimeUTC+10/UTC+11
AFTAfghanistan Time
AKDTAlaska Daylight TimeUTC−08
AKSTAlaska Standard TimeUTC−09
ALMTAlma-Ata TimeUTC+06
AMSTAmazon Summer Time UTC−03
AMTAmazon Time UTC−04
AMTArmenia TimeUTC+04
ANATAnadyr TimeUTC+12
AQTTAqtobe TimeUTC+05
ARTArgentina TimeUTC−03
ASTArabia Standard TimeUTC+03
ASTAtlantic Standard TimeUTC−04
AWSTAustralian Western Standard TimeUTC+08
AZOSTAzores Summer Time
AZOTAzores Standard TimeUTC−01
AZTAzerbaijan TimeUTC+04
BDTBrunei TimeUTC+08
BIOTBritish Indian Ocean TimeUTC+06
BITBaker Island TimeUTC−12
BOTBolivia TimeUTC−04
BRSTBrasília Summer TimeUTC−02
BRTBrasília TimeUTC−03
BSTBangladesh Standard TimeUTC+06
BSTBougainville Standard TimeUTC+11
BSTBritish Summer Time UTC+01
BTTBhutan TimeUTC+06
CATCentral Africa TimeUTC+02
CCTCocos Islands Time
CDTCentral Daylight Time UTC−05
CDTCuba Daylight TimeUTC−04
CESTCentral European Summer Time UTC+02
CETCentral European TimeUTC+01
CHADTChatham Daylight Time
CHASTChatham Standard Time
CHOTChoibalsan Standard TimeUTC+08
CHOSTChoibalsan Summer TimeUTC+09
CHSTChamorro Standard TimeUTC+10
CHUTChuuk TimeUTC+10
CISTClipperton Island Standard TimeUTC−08
CITCentral Indonesia TimeUTC+08
CKTCook Island TimeUTC−10
CLSTChile Summer TimeUTC−03
CLTChile Standard TimeUTC−04
COSTColombia Summer TimeUTC−04
COTColombia TimeUTC−05
CSTCentral Standard Time UTC−06
CSTChina Standard TimeUTC+08
CSTCuba Standard TimeUTC−05
CTChina TimeUTC+08
CVTCape Verde TimeUTC−01
CWSTCentral Western Standard Time unofficial
CXTChristmas Island TimeUTC+07
DAVTDavis TimeUTC+07
DDUTDumont d'Urville TimeUTC+10
DFTAIX-specific equivalent of Central European TimeUTC+01
EASSTEaster Island Summer TimeUTC−05
EASTEaster Island Standard TimeUTC−06
EATEast Africa TimeUTC+03
ECTEastern Caribbean Time UTC−04
ECTEcuador TimeUTC−05
EDTEastern Daylight Time UTC−04
EESTEastern European Summer TimeUTC+03
EETEastern European TimeUTC+02
EGSTEastern Greenland Summer Time
EGTEastern Greenland TimeUTC−01
EITEastern Indonesian TimeUTC+09
ESTEastern Standard Time UTC−05
FETFurther-eastern European TimeUTC+03
FJTFiji TimeUTC+12
FKSTFalkland Islands Summer TimeUTC−03
FKTFalkland Islands TimeUTC−04
FNTFernando de Noronha TimeUTC−02
GALTGalápagos TimeUTC−06
GAMTGambier Islands TimeUTC−09
GETGeorgia Standard TimeUTC+04
GFTFrench Guiana TimeUTC−03
GILTGilbert Island TimeUTC+12
GITGambier Island TimeUTC−09
GMTGreenwich Mean Time
GSTSouth Georgia and the South Sandwich Islands TimeUTC−02
GSTGulf Standard TimeUTC+04
GYTGuyana TimeUTC−04
HDTHawaii–Aleutian Daylight TimeUTC−09
HAECHeure Avancée d'Europe Centrale French-language name for CESTUTC+02
HSTHawaii–Aleutian Standard TimeUTC−10
HKTHong Kong TimeUTC+08
HMTHeard and McDonald Islands TimeUTC+05
HOVSTHovd Summer Time ''UTC+08
HOVTHovd TimeUTC+07
ICTIndochina TimeUTC+07
IDLWInternational Day Line West time zoneUTC−12
IDTIsrael Daylight TimeUTC+03
IOTIndian Ocean TimeUTC+03
IRDTIran Daylight Time
IRKTIrkutsk TimeUTC+08
IRSTIran Standard Time
ISTIndian Standard Time
ISTIrish Standard TimeUTC+01
ISTIsrael Standard TimeUTC+02
JSTJapan Standard TimeUTC+09
KALTKaliningrad TimeUTC+02
KGTKyrgyzstan TimeUTC+06
KOSTKosrae TimeUTC+11
KRATKrasnoyarsk TimeUTC+07
KSTKorea Standard TimeUTC+09
LHSTLord Howe Standard Time
LHSTLord Howe Summer TimeUTC+11
LINTLine Islands TimeUTC+14
MAGTMagadan TimeUTC+12
MARTMarquesas Islands Time
MAWTMawson Station TimeUTC+05
MDTMountain Daylight Time UTC−06
METMiddle European Time Same zone as CETUTC+01
MESTMiddle European Summer Time Same zone as CESTUTC+02
MHTMarshall Islands TimeUTC+12
MISTMacquarie Island Station TimeUTC+11
MITMarquesas Islands Time
MMTMyanmar Standard Time
MSKMoscow TimeUTC+03
MSTMalaysia Standard TimeUTC+08
MSTMountain Standard Time UTC−07
MUTMauritius TimeUTC+04
MVTMaldives TimeUTC+05
MYTMalaysia TimeUTC+08
NCTNew Caledonia TimeUTC+11
NDTNewfoundland Daylight Time
NFTNorfolk Island TimeUTC+11
NOVTNovosibirsk TimeUTC+07
NPTNepal Time
NSTNewfoundland Standard Time
NTNewfoundland Time
NUTNiue TimeUTC−11
NZDTNew Zealand Daylight TimeUTC+13
NZSTNew Zealand Standard TimeUTC+12
OMSTOmsk TimeUTC+06
ORATOral TimeUTC+05
PDTPacific Daylight Time UTC−07
PETPeru TimeUTC−05
PETTKamchatka TimeUTC+12
PGTPapua New Guinea TimeUTC+10
PHOTPhoenix Island TimeUTC+13
PHTPhilippine TimeUTC+08
PKTPakistan Standard TimeUTC+05
PMDTSaint Pierre and Miquelon Daylight TimeUTC−02
PMSTSaint Pierre and Miquelon Standard TimeUTC−03
PONTPohnpei Standard TimeUTC+11
PSTPacific Standard Time UTC−08
PSTPhilippine Standard TimeUTC+08
PYSTParaguay Summer TimeUTC−03
PYTParaguay TimeUTC−04
RETRéunion TimeUTC+04
ROTTRothera Research Station TimeUTC−03
SAKTSakhalin Island TimeUTC+11
SAMTSamara TimeUTC+04
SASTSouth African Standard TimeUTC+02
SBTSolomon Islands TimeUTC+11
SCTSeychelles TimeUTC+04
SDTSamoa Daylight TimeUTC−10
SGTSingapore TimeUTC+08
SLSTSri Lanka Standard Time
SRETSrednekolymsk TimeUTC+11
SRTSuriname TimeUTC−03
SSTSamoa Standard TimeUTC−11
SSTSingapore Standard TimeUTC+08
SYOTShowa Station TimeUTC+03
TAHTTahiti TimeUTC−10
THAThailand Standard TimeUTC+07
TFTFrench Southern and Antarctic TimeUTC+05
TJTTajikistan TimeUTC+05
TKTTokelau TimeUTC+13
TLTTimor Leste TimeUTC+09
TMTTurkmenistan TimeUTC+05
TRTTurkey TimeUTC+03
TOTTonga TimeUTC+13
TVTTuvalu TimeUTC+12
ULASTUlaanbaatar Summer TimeUTC+09
ULATUlaanbaatar Standard TimeUTC+08
UTCCoordinated Universal Time
UYSTUruguay Summer TimeUTC−02
UYTUruguay Standard TimeUTC−03
UZTUzbekistan TimeUTC+05
VETVenezuelan Standard Time
VLATVladivostok TimeUTC+10
VOLTVolgograd TimeUTC+04
VOSTVostok Station TimeUTC+06
VUTVanuatu TimeUTC+11
WAKTWake Island TimeUTC+12
WASTWest Africa Summer TimeUTC+02
WATWest Africa TimeUTC+01
WESTWestern European Summer TimeUTC+01
WETWestern European Time
WITWestern Indonesian TimeUTC+07
WGSTWest Greenland Summer TimeUTC−02
WGTWest Greenland TimeUTC−03
WSTWestern Standard TimeUTC+08
YAKTYakutsk TimeUTC+09
YEKTYekaterinburg TimeUTC+05