Time Tools

Time Zone Abbreviations Worldwide List

Browse a comprehensive list of time zone abbreviations worldwide. Find the meaning, location, and UTC offset for every time zone abbreviation.

Abbreviations A–Z

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Abbreviation	Time Zone Name	Location	Offset
A	Alpha Time Zone	Military	UTC +1
ACDT	Australian Central Daylight Time CDT – Central Daylight Time CDST – Central Daylight Savings Time	Australia	UTC +10:30
ACST	Australian Central Standard Time CST – Central Standard Time	Australia	UTC +9:30
ACT	Acre Time	South America	UTC -5
ACT	Australian Central Time	Australia	UTC +9:30 / +10:30
ACWST	Australian Central Western Standard Time	Australia	UTC +8:45
ADT	Arabia Daylight Time AST – Arabia Summer Time	Asia	UTC +3
ADT	Atlantic Daylight Time ADST – Atlantic Daylight Saving Time AST – Atlantic Summer Time HAA – Heure Avancée de l'Atlantique (French)	North America Atlantic	UTC -3
AEDT	Australian Eastern Daylight Time EDT – Eastern Daylight Time EDST – Eastern Daylight Saving Time	Australia	UTC +11
AEST	Australian Eastern Standard Time EST – Eastern Standard Time AET – Australian Eastern Time	Australia	UTC +10
AET	Australian Eastern Time	Australia	UTC +10:00 / +11:00
AFT	Afghanistan Time	Asia	UTC +4:30
AKDT	Alaska Daylight Time ADST – Alaska Daylight Saving Time	North America	UTC -8
AKST	Alaska Standard Time AT – Alaska Time	North America	UTC -9
ALMT	Alma-Ata Time	Asia	UTC +6
AMST	Amazon Summer Time	South America	UTC -3
AMST	Armenia Summer Time AMDT – Armenia Daylight Time	Asia	UTC +5
AMT	Amazon Time	South America	UTC -4
AMT	Armenia Time	Asia	UTC +4
ANAST	Anadyr Summer Time	Asia	UTC +12
ANAT	Anadyr Time	Asia	UTC +12
AQTT	Aqtobe Time	Asia	UTC +5
ART	Argentina Time	Antarctica South America	UTC -3
AST	Arabia Standard Time AST – Arabic Standard Time AST – Al Manamah Standard Time	Asia	UTC +3
AST	Atlantic Standard Time AT – Atlantic Time AST – Tiempo Estándar del Atlántico (Spanish) HNA – Heure Normale de l'Atlantique (French)	North America Atlantic Caribbean	UTC -4
AT	Atlantic Time	North America Atlantic	UTC -4:00 / -3:00
AWDT	Australian Western Daylight Time WDT – Western Daylight Time WST – Western Summer Time	Australia	UTC +9
AWST	Australian Western Standard Time WST – Western Standard Time WAT – Western Australia Time	Australia	UTC +8
AZOST	Azores Summer Time AZODT – Azores Daylight Time	Atlantic	UTC +0
AZOT	Azores Time AZOST – Azores Standard Time	Atlantic	UTC -1
AZST	Azerbaijan Summer Time	Asia	UTC +5
AZT	Azerbaijan Time	Asia	UTC +4
AoE	Anywhere on Earth	Pacific	UTC -12
B	Bravo Time Zone	Military	UTC +2
BNT	Brunei Darussalam Time BDT – Brunei Time	Asia	UTC +8
BOT	Bolivia Time	South America	UTC -4
BRST	Brasília Summer Time BST – Brazil Summer Time BST – Brazilian Summer Time	South America	UTC -2
BRT	Brasília Time BT – Brazil Time BT – Brazilian Time	South America	UTC -3
BST	Bangladesh Standard Time	Asia	UTC +6
BST	Bougainville Standard Time	Pacific	UTC +11
BST	British Summer Time BDT – British Daylight Time BDST – British Daylight Saving Time	Europe	UTC +1
BTT	Bhutan Time	Asia	UTC +6
C	Charlie Time Zone	Military	UTC +3
CAST	Casey Time	Antarctica	UTC +11
CAT	Central Africa Time	Africa	UTC +2
CCT	Cocos Islands Time	Indian Ocean	UTC +6:30
CDT	Central Daylight Time CDST – Central Daylight Saving Time NACDT – North American Central Daylight Time HAC – Heure Avancée du Centre (French)	North America	UTC -5
CDT	Cuba Daylight Time	Caribbean	UTC -4
CEST	Central European Summer Time CEDT – Central European Daylight Time ECST – European Central Summer Time MESZ – Mitteleuropäische Sommerzeit (German)	Europe Antarctica	UTC +2
CET	Central European Time ECT – European Central Time CET – Central Europe Time MEZ – Mitteleuropäische Zeit (German)	Europe Africa	UTC +1
CHADT	Chatham Island Daylight Time CDT – Chatham Daylight Time	Pacific	UTC +13:45
CHAST	Chatham Island Standard Time	Pacific	UTC +12:45
CHOST	Choibalsan Summer Time CHODT – Choibalsan Daylight Time CHODST – Choibalsan Daylight Saving Time	Asia	UTC +9
CHOT	Choibalsan Time	Asia	UTC +8
CHUT	Chuuk Time	Pacific	UTC +10
CIDST	Cayman Islands Daylight Saving Time	Caribbean	UTC -4
CIST	Cayman Islands Standard Time CIT – Cayman Islands Time	Caribbean	UTC -5
CKT	Cook Island Time	Pacific	UTC -10
CLST	Chile Summer Time CLDT – Chile Daylight Time	South America Antarctica	UTC -3
CLT	Chile Standard Time CT – Chile Time CLST – Chile Standard Time	South America Antarctica	UTC -4
COT	Colombia Time	South America	UTC -5
CST	Central Standard Time CT – Central Time NACST – North American Central Standard Time CST – Tiempo Central Estándar (Spanish) HNC – Heure Normale du Centre (French)	North America Central America	UTC -6
CST	China Standard Time	Asia	UTC +8
CST	Cuba Standard Time	Caribbean	UTC -5
CT	Central Time	North America	UTC -6:00 / -5:00
CVT	Cape Verde Time	Africa	UTC -1
CXT	Christmas Island Time	Australia	UTC +7
ChST	Chamorro Standard Time GST – Guam Standard Time	Pacific	UTC +10
D	Delta Time Zone	Military	UTC +4
DAVT	Davis Time	Antarctica	UTC +7
DDUT	Dumont-d'Urville Time	Antarctica	UTC +10
E	Echo Time Zone	Military	UTC +5
EASST	Easter Island Summer Time EADT – Easter Island Daylight Time	Pacific	UTC -5
EAST	Easter Island Standard Time	Pacific	UTC -6
EAT	Eastern Africa Time EAT – East Africa Time	Africa Indian Ocean	UTC +3
ECT	Ecuador Time	South America	UTC -5
EDT	Eastern Daylight Time EDST – Eastern Daylight Savings Time NAEDT – North American Eastern Daylight Time HAE – Heure Avancée de l'Est (French) EDT – Tiempo de verano del Este (Spanish)	North America Caribbean	UTC -4
EEST	Eastern European Summer Time EEDT – Eastern European Daylight Time OESZ – Osteuropäische Sommerzeit (German)	Europe Asia	UTC +3
EET	Eastern European Time OEZ – Osteuropäische Zeit (German)	Europe Asia Africa	UTC +2
EGST	Eastern Greenland Summer Time EGST – East Greenland Summer Time	North America	UTC +0
EGT	East Greenland Time EGT – Eastern Greenland Time	North America	UTC -1
EST	Eastern Standard Time ET – Eastern Time NAEST – North American Eastern Standard Time ET – Tiempo del Este (Spanish) HNE – Heure Normale de l'Est (French)	North America Caribbean Central America	UTC -5
ET	Eastern Time	North America Caribbean	UTC -5:00 / -4:00
F	Foxtrot Time	Military	UTC +6
FET	Further-Eastern European Time	Europe	UTC +3
FJST	Fiji Summer Time FJDT – Fiji Daylight Time	Pacific	UTC +13
FJT	Fiji Time	Pacific	UTC +12
FKST	Falkland Islands Summer Time FKDT – Falkland Island Daylight Time	South America	UTC -3
FKT	Falkland Island Time FKST – Falkland Island Standard Time	South America	UTC -4
FNT	Fernando de Noronha Time	South America	UTC -2
G	Golf Time Zone	Military	UTC +7
GALT	Galapagos Time	Pacific	UTC -6
GAMT	Gambier Time GAMT – Gambier Islands Time	Pacific	UTC -9
GET	Georgia Standard Time	Asia	UTC +4
GFT	French Guiana Time	South America	UTC -3
GILT	Gilbert Island Time	Pacific	UTC +12
GMT	Greenwich Mean Time UTC – Coordinated Universal Time GT – Greenwich Time	Europe Africa North America Antarctica	UTC +0
GST	Gulf Standard Time	Asia	UTC +4
GST	South Georgia Time	South America	UTC -2
GYT	Guyana Time	South America	UTC -4
H	Hotel Time Zone	Military	UTC +8
HADT	Hawaii-Aleutian Daylight Time HDT – Hawaii Daylight Time	North America	UTC -9
HAST	Hawaii-Aleutian Standard Time HST – Hawaii Standard Time	North America Pacific	UTC -10
HKT	Hong Kong Time	Asia	UTC +8
HOVST	Hovd Summer Time HOVDT – Hovd Daylight Time HOVDST – Hovd Daylight Saving Time	Asia	UTC +8
HOVT	Hovd Time	Asia	UTC +7
I	India Time Zone	Military	UTC +9
ICT	Indochina Time	Asia	UTC +7
IDT	Israel Daylight Time	Asia	UTC +3
IOT	Indian Chagos Time	Indian Ocean	UTC +6
IRDT	Iran Daylight Time IRST – Iran Summer Time IDT – Iran Daylight Time	Asia	UTC +4:30
IRKST	Irkutsk Summer Time	Asia	UTC +9
IRKT	Irkutsk Time	Asia	UTC +8
IRST	Iran Standard Time IT – Iran Time	Asia	UTC +3:30
IST	India Standard Time IT – India Time IST – Indian Standard Time	Asia	UTC +5:30
IST	Irish Standard Time IST – Irish Summer Time	Europe	UTC +1
IST	Israel Standard Time	Asia	UTC +2
JST	Japan Standard Time	Asia	UTC +9
K	Kilo Time Zone	Military	UTC +10
KGT	Kyrgyzstan Time	Asia	UTC +6
KOST	Kosrae Time	Pacific	UTC +11
KRAST	Krasnoyarsk Summer Time	Asia	UTC +8
KRAT	Krasnoyarsk Time	Asia	UTC +7
KST	Korea Standard Time KST – Korean Standard Time KT – Korea Time	Asia	UTC +9
KUYT	Kuybyshev Time SAMST – Samara Summer Time	Europe	UTC +4
L	Lima Time Zone	Military	UTC +11
LHDT	Lord Howe Daylight Time	Australia	UTC +11
LHST	Lord Howe Standard Time	Australia	UTC +10:30
LINT	Line Islands Time	Pacific	UTC +14
M	Mike Time Zone	Military	UTC +12
MAGST	Magadan Summer Time MAGST – Magadan Island Summer Time	Asia	UTC +12
MAGT	Magadan Time MAGT – Magadan Island Time	Asia	UTC +11
MART	Marquesas Time	Pacific	UTC -9:30
MAWT	Mawson Time	Antarctica	UTC +5
MDT	Mountain Daylight Time MDST – Mountain Daylight Saving Time NAMDT – North American Mountain Daylight Time HAR – Heure Avancée des Rocheuses (French)	North America	UTC -6
MHT	Marshall Islands Time	Pacific	UTC +12
MMT	Myanmar Time	Asia	UTC +6:30
MSD	Moscow Daylight Time Moscow Summer Time	Europe	UTC +4
MSK	Moscow Standard Time MCK – Moscow Time	Europe Asia	UTC +3
MST	Mountain Standard Time MT – Mountain Time NAMST – North American Mountain Standard Time HNR – Heure Normale des Rocheuses (French)	North America	UTC -7
MT	Mountain Time	North America	UTC -7:00 / -6:00
MUT	Mauritius Time	Africa	UTC +4
MVT	Maldives Time	Asia	UTC +5
MYT	Malaysia Time MST – Malaysian Standard Time	Asia	UTC +8
N	November Time Zone	Military	UTC -1
NCT	New Caledonia Time	Pacific	UTC +11
NDT	Newfoundland Daylight Time HAT – Heure Avancée de Terre-Neuve (French)	North America	UTC -2:30
NFT	Norfolk Time NFT – Norfolk Island Time	Australia	UTC +11
NOVST	Novosibirsk Summer Time OMSST – Omsk Summer Time	Asia	UTC +7
NOVT	Novosibirsk Time OMST – Omsk Standard Time	Asia	UTC +7
NPT	Nepal Time	Asia	UTC +5:45
NRT	Nauru Time	Pacific	UTC +12
NST	Newfoundland Standard Time HNT – Heure Normale de Terre-Neuve (French)	North America	UTC -3:30
NUT	Niue Time	Pacific	UTC -11
NZDT	New Zealand Daylight Time	Pacific Antarctica	UTC +13
NZST	New Zealand Standard Time	Pacific Antarctica	UTC +12
O	Oscar Time Zone	Military	UTC -2
OMSST	Omsk Summer Time NOVST – Novosibirsk Summer Time	Asia	UTC +7
OMST	Omsk Standard Time OMST – Omsk Time NOVT – Novosibirsk Time	Asia	UTC +6
ORAT	Oral Time	Asia	UTC +5
P	Papa Time Zone	Military	UTC -3
PDT	Pacific Daylight Time PDST – Pacific Daylight Saving Time NAPDT – North American Pacific Daylight Time HAP – Heure Avancée du Pacifique (French)	North America	UTC -7
PET	Peru Time	South America	UTC -5
PETST	Kamchatka Summer Time	Asia	UTC +12
PETT	Kamchatka Time PETT – Petropavlovsk-Kamchatski Time	Asia	UTC +12
PGT	Papua New Guinea Time	Pacific	UTC +10
PHOT	Phoenix Island Time	Pacific	UTC +13
PHT	Philippine Time PST – Philippine Standard Time	Asia	UTC +8
PKT	Pakistan Standard Time PKT – Pakistan Time	Asia	UTC +5
PMDT	Pierre & Miquelon Daylight Time	North America	UTC -2
PMST	Pierre & Miquelon Standard Time	North America	UTC -3
PONT	Pohnpei Standard Time	Pacific	UTC +11
PST	Pacific Standard Time PT – Pacific Time NAPST – North American Pacific Standard Time PT – Tiempo del Pacífico (Spanish) HNP – Heure Normale du Pacifique (French)	North America	UTC -8
PST	Pitcairn Standard Time	Pacific	UTC -8
PT	Pacific Time	North America	UTC -8:00 / -7:00
PWT	Palau Time	Pacific	UTC +9
PYST	Paraguay Summer Time	South America	UTC -3
PYT	Paraguay Time	South America	UTC -4
PYT	Pyongyang Time PYST – Pyongyang Standard Time	Asia	UTC +8:30
Q	Quebec Time Zone	Military	UTC -4
QYZT	Qyzylorda Time	Asia	UTC +6
R	Romeo Time Zone	Military	UTC -5
RET	Reunion Time	Africa	UTC +4
ROTT	Rothera Time	Antarctica	UTC -3
S	Sierra Time Zone	Military	UTC -6
SAKT	Sakhalin Time	Asia	UTC +11
SAMT	Samara Time SAMT – Samara Standard Time	Europe	UTC +4
SAST	South Africa Standard Time SAST – South African Standard Time	Africa	UTC +2
SBT	Solomon Islands Time SBT – Solomon Island Time	Pacific	UTC +11
SCT	Seychelles Time	Africa	UTC +4
SGT	Singapore Time SST – Singapore Standard Time	Asia	UTC +8
SRET	Srednekolymsk Time	Asia	UTC +11
SRT	Suriname Time	South America	UTC -3
SST	Samoa Standard Time	Pacific	UTC -11
SYOT	Syowa Time	Antarctica	UTC +3
T	Tango Time Zone	Military	UTC -7
TAHT	Tahiti Time	Pacific	UTC -10
TFT	French Southern and Antarctic Time KIT – Kerguelen (Islands) Time	Indian Ocean	UTC +5
TJT	Tajikistan Time	Asia	UTC +5
TKT	Tokelau Time	Pacific	UTC +13
TLT	East Timor Time	Asia	UTC +9
TMT	Turkmenistan Time	Asia	UTC +5
TOST	Tonga Summer Time	Pacific	UTC +14
TOT	Tonga Time	Pacific	UTC +13
TRT	Turkey Time	Asia Europe	UTC +3
TVT	Tuvalu Time	Pacific	UTC +12
U	Uniform Time Zone	Military	UTC -8
ULAST	Ulaanbaatar Summer Time ULAST – Ulan Bator Summer Time	Asia	UTC +9
ULAT	Ulaanbaatar Time ULAT – Ulan Bator Time	Asia	UTC +8
UTC	Coordinated Universal Time	Worldwide	UTC
UYST	Uruguay Summer Time	South America	UTC -2
UYT	Uruguay Time	South America	UTC -3
UZT	Uzbekistan Time	Asia	UTC +5
V	Victor Time Zone	Military	UTC -9
VET	Venezuelan Standard Time HLV – Hora Legal de Venezuela (Spanish)	South America	UTC -4
VLAST	Vladivostok Summer Time	Asia	UTC +11
VLAT	Vladivostok Time	Asia	UTC +10
VOST	Vostok Time	Antarctica	UTC +6
VUT	Vanuatu Time EFATE – Efate Time	Pacific	UTC +11
W	Whiskey Time Zone	Military	UTC -10
WAKT	Wake Time	Pacific	UTC +12
WARST	Western Argentine Summer Time	South America	UTC -3
WAST	West Africa Summer Time	Africa	UTC +2
WAT	West Africa Time	Africa	UTC +1
WEST	Western European Summer Time WEDT – Western European Daylight Time WESZ – Westeuropäische Sommerzeit (German)	Europe Africa	UTC +1
WET	Western European Time GMT – Greenwich Mean Time WEZ – Westeuropäische Zeit (German)	Europe Africa	UTC +0
WFT	Wallis and Futuna Time	Pacific	UTC +12
WGST	Western Greenland Summer Time WGST – West Greenland Summer Time	North America	UTC -2
WGT	West Greenland Time WGT – Western Greenland Time	North America	UTC -3
WIB	Western Indonesian Time WIB – Waktu Indonesia Barat	Asia	UTC +7
WIT	Eastern Indonesian Time WIT – Waktu Indonesia Timur	Asia	UTC +9
WITA	Central Indonesian Time WITA – Waktu Indonesia Tengah	Asia	UTC +8
WST	West Samoa Time ST – Samoa Time	Pacific	UTC +14
WST	Western Sahara Summer Time	Africa	UTC +1
WT	Western Sahara Standard Time WT – Western Sahara Time	Africa	UTC +0
X	X-ray Time Zone	Military	UTC -11
Y	Yankee Time Zone	Military	UTC -12
YAKST	Yakutsk Summer Time	Asia	UTC +10
YAKT	Yakutsk Time	Asia	UTC +9
YAPT	Yap Time	Pacific	UTC +10
YEKST	Yekaterinburg Summer Time	Asia	UTC +6
YEKT	Yekaterinburg Time	Asia	UTC +5
Z	Zulu Time Zone	Military	UTC +0

About time zone abbreviations

This reference lists common time zone abbreviations with their full names, geographic location, and UTC offset. Use the A–Z jump links or the search box to find a specific abbreviation quickly.

Abbreviatione.g. EST, IST

Namefull zone title

Locationregion/country

Offsetvs UTC

Note that some abbreviations are ambiguous (used in multiple regions) or change with daylight saving time. Always confirm the offset for your specific use case.