Time Zone Abbreviations

Time Zone names, codes and abbreviations for Standard Time1 and Daylight Saving Time (DST)2 around the world.

1 Standard time is the local time in a country or region when Daylight Saving Time (DST) is not in use.

Standard time is sometimes referred to as winter time or normal time, while DST may also be called summer time, especially in the UK.

2 Daylight Saving Time (DST) is the practice of setting the clocks forward one hour from standard time during the summer months, and back again in the fall, in order to make better use of natural daylight.

UTC – Universal Coordinated Time is the common time standard across the world.

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 +4
ADT Atlantic Daylight Time
ADST – Atlantic Daylight Saving Time
AST – Atlantic Summer Time 
HAA – Heure Avancée de l’Atlantique (French)
North America
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
UTC -4
AT Atlantic Time North America
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 +8
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)
UTC +2
CET Central European Time
ECT – European Central Time
CET – Central Europe Time 
MEZ – Mitteleuropäische Zeit (German)
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
UTC -3
CLT Chile Standard Time
CT – Chile Time
CLST – Chile Standard Time
South America
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
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
UTC -4
EEST Eastern European Summer Time
EEDT – Eastern European Daylight Time 
OESZ – Osteuropäische Sommerzeit (German)
UTC +3
EET Eastern European Time
OEZ – Osteuropäische Zeit (German)
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
Central America
UTC -5
ET Eastern Time North America
UTC -5:00 / -4:00
F Foxtrot Time Zone 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
North America
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
HDT Hawaii-Aleutian Daylight Time
HADT – Hawaii Daylight Time
North America UTC -9
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
HST Hawaii Standard Time
HAST – Hawaii-Aleutian Standard Time
North America
UTC -10
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
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 +6
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
UTC +13
NZST New Zealand Standard Time Pacific
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
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)
UTC +1
WET Western European Time
GMT – Greenwich Mean Time
WEZ – Westeuropäische Zeit (German)
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 +13
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