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 +2
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
Caribbean
    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)
    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
Central 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
Central 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     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 +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
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