ACDT 	Australian Central Daylight Saving Time 	UTC+10:30
ACST 	Australian Central Standard Time 	UTC+09:30
ACT 	Acre Time 	UTC−05
# ACT 	ASEAN Common Time (proposed) 	UTC+08:00
ACWST 	Australian Central Western Standard Time (unofficial) 	UTC+08:45
ADT 	Atlantic Daylight Time 	UTC−03
AEDT 	Australian Eastern Daylight Saving Time 	UTC+11
AEST 	Australian Eastern Standard Time 	UTC+10
AET 	Australian Eastern Time 	UTC+10/UTC+11
AFT 	Afghanistan Time 	UTC+04:30
AKDT 	Alaska Daylight Time 	UTC−08
AKST 	Alaska Standard Time 	UTC−09
ALMT 	Alma-Ata Time[1] 	UTC+06
AMST 	Amazon Summer Time (Brazil)[2] 	UTC−03
AMT 	Amazon Time (Brazil)[3] 	UTC−04
# AMT 	Armenia Time 	UTC+04
ANAT 	Anadyr Time[4] 	UTC+12
AQTT 	Aqtobe Time[5] 	UTC+05
ART 	Argentina Time 	UTC−03
# AST 	Arabia Standard Time 	UTC+03
AST 	Atlantic Standard Time 	UTC−04
AWST 	Australian Western Standard Time 	UTC+08
AZOST 	Azores Summer Time 	UTC±00
AZOT 	Azores Standard Time 	UTC−01
AZT 	Azerbaijan Time 	UTC+04
BNT 	Brunei Time 	UTC+08
BIOT 	British Indian Ocean Time 	UTC+06
BIT 	Baker Island Time 	UTC−12
BOT 	Bolivia Time 	UTC−04
BRST 	Brasília Summer Time 	UTC−02
BRT 	Brasília Time 	UTC−03
# BST 	Bangladesh Standard Time 	UTC+06
# BST 	Bougainville Standard Time[6] 	UTC+11
BST 	British Summer Time (British Standard Time from Mar 1968 to Oct 1971) 	UTC+01
BTT 	Bhutan Time 	UTC+06
CAT 	Central Africa Time 	UTC+02
CCT 	Cocos Islands Time 	UTC+06:30
CDT 	Central Daylight Time (North America) 	UTC−05
# CDT 	Cuba Daylight Time[7] 	UTC−04
CEST 	Central European Summer Time 	UTC+02
CET 	Central European Time 	UTC+01
CHADT 	Chatham Daylight Time 	UTC+13:45
CHAST 	Chatham Standard Time 	UTC+12:45
CHOT 	Choibalsan Standard Time 	UTC+08
CHOST 	Choibalsan Summer Time 	UTC+09
CHST 	Chamorro Standard Time 	UTC+10
CHUT 	Chuuk Time 	UTC+10
CIST 	Clipperton Island Standard Time 	UTC−08
CKT 	Cook Island Time 	UTC−10
CLST 	Chile Summer Time 	UTC−03
CLT 	Chile Standard Time 	UTC−04
COST 	Colombia Summer Time 	UTC−04
COT 	Colombia Time 	UTC−05
CST 	Central Standard Time (North America) 	UTC−06
# CST 	China Standard Time 	UTC+08
# CST 	Cuba Standard Time 	UTC−05
CT 	Central Time 	UTC−06/UTC−05
CVT 	Cape Verde Time 	UTC−01
CWST 	Central Western Standard Time (Australia) unofficial 	UTC+08:45
CXT 	Christmas Island Time 	UTC+07
DAVT 	Davis Time 	UTC+07
DDUT 	Dumont d'Urville Time 	UTC+10
DFT 	AIX-specific equivalent of Central European Time[NB 1] 	UTC+01
EASST 	Easter Island Summer Time 	UTC−05
EAST 	Easter Island Standard Time 	UTC−06
EAT 	East Africa Time 	UTC+03
ECT 	Eastern Caribbean Time (does not recognise DST) 	UTC−04
# ECT 	Ecuador Time 	UTC−05
EDT 	Eastern Daylight Time (North America) 	UTC−04
EEST 	Eastern European Summer Time 	UTC+03
EET 	Eastern European Time 	UTC+02
EGST 	Eastern Greenland Summer Time 	UTC±00
EGT 	Eastern Greenland Time 	UTC−01
EST 	Eastern Standard Time (North America) 	UTC−05
ET 	Eastern Time (North America) 	UTC−05 / UTC−04
FET 	Further-eastern European Time 	UTC+03
FJT 	Fiji Time 	UTC+12
FKST 	Falkland Islands Summer Time 	UTC−03
FKT 	Falkland Islands Time 	UTC−04
FNT 	Fernando de Noronha Time 	UTC−02
GALT 	Galápagos Time 	UTC−06
GAMT 	Gambier Islands Time 	UTC−09
GET 	Georgia Standard Time 	UTC+04
GFT 	French Guiana Time 	UTC−03
GILT 	Gilbert Island Time 	UTC+12
GIT 	Gambier Island Time 	UTC−09
GMT 	Greenwich Mean Time 	UTC±00
# GST 	South Georgia and the South Sandwich Islands Time 	UTC−02
GST 	Gulf Standard Time 	UTC+04
GYT 	Guyana Time 	UTC−04
HDT 	Hawaii–Aleutian Daylight Time 	UTC−09
HAEC 	Heure Avancée d'Europe Centrale French-language name for CEST 	UTC+02
HST 	Hawaii–Aleutian Standard Time 	UTC−10
HKT 	Hong Kong Time 	UTC+08
HMT 	Heard and McDonald Islands Time 	UTC+05
HOVST 	Hovd Summer Time (not used from 2017-present) 	UTC+08
HOVT 	Hovd Time 	UTC+07
ICT 	Indochina Time 	UTC+07
IDLW 	International Date Line West time zone 	UTC−12
IDT 	Israel Daylight Time 	UTC+03
IOT 	Indian Ocean Time 	UTC+03
IRDT 	Iran Daylight Time 	UTC+04:30
IRKT 	Irkutsk Time 	UTC+08
IRST 	Iran Standard Time 	UTC+03:30
# IST 	Indian Standard Time 	UTC+05:30
# IST 	Irish Standard Time[8] 	UTC+01
IST 	Israel Standard Time 	UTC+02
JST 	Japan Standard Time 	UTC+09
KALT 	Kaliningrad Time 	UTC+02
KGT 	Kyrgyzstan Time 	UTC+06
KOST 	Kosrae Time 	UTC+11
KRAT 	Krasnoyarsk Time 	UTC+07
KST 	Korea Standard Time 	UTC+09
LHST 	Lord Howe Standard Time 	UTC+10:30
# LHST 	Lord Howe Summer Time 	UTC+11
LINT 	Line Islands Time 	UTC+14
MAGT 	Magadan Time 	UTC+12
MART 	Marquesas Islands Time 	UTC−09:30
MAWT 	Mawson Station Time 	UTC+05
MDT 	Mountain Daylight Time (North America) 	UTC−06
MET 	Middle European Time (same zone as CET) 	UTC+01
MEST 	Middle European Summer Time (same zone as CEST) 	UTC+02
MHT 	Marshall Islands Time 	UTC+12
MIST 	Macquarie Island Station Time 	UTC+11
MIT 	Marquesas Islands Time 	UTC−09:30
MMT 	Myanmar Standard Time 	UTC+06:30
MSK 	Moscow Time 	UTC+03
# MST 	Malaysia Standard Time 	UTC+08
MST 	Mountain Standard Time (North America) 	UTC−07
MUT 	Mauritius Time 	UTC+04
MVT 	Maldives Time 	UTC+05
MYT 	Malaysia Time 	UTC+08
NCT 	New Caledonia Time 	UTC+11
NDT 	Newfoundland Daylight Time 	UTC−02:30
NFT 	Norfolk Island Time 	UTC+11
NOVT 	Novosibirsk Time [9] 	UTC+07
NPT 	Nepal Time 	UTC+05:45
NST 	Newfoundland Standard Time 	UTC−03:30
NT 	Newfoundland Time 	UTC−03:30
NUT 	Niue Time 	UTC−11
NZDT 	New Zealand Daylight Time 	UTC+13
NZST 	New Zealand Standard Time 	UTC+12
OMST 	Omsk Time 	UTC+06
ORAT 	Oral Time 	UTC+05
PDT 	Pacific Daylight Time (North America) 	UTC−07
PET 	Peru Time 	UTC−05
PETT 	Kamchatka Time 	UTC+12
PGT 	Papua New Guinea Time 	UTC+10
PHOT 	Phoenix Island Time 	UTC+13
PHT 	Philippine Time 	UTC+08
PHST 	Philippine Standard Time 	UTC+08
PKT 	Pakistan Standard Time 	UTC+05
PMDT 	Saint Pierre and Miquelon Daylight Time 	UTC−02
PMST 	Saint Pierre and Miquelon Standard Time 	UTC−03
PONT 	Pohnpei Standard Time 	UTC+11
PST 	Pacific Standard Time (North America) 	UTC−08
PWT 	Palau Time[10] 	UTC+09
PYST 	Paraguay Summer Time[11] 	UTC−03
PYT 	Paraguay Time[12] 	UTC−04
RET 	Réunion Time 	UTC+04
ROTT 	Rothera Research Station Time 	UTC−03
SAKT 	Sakhalin Island Time 	UTC+11
SAMT 	Samara Time 	UTC+04
SAST 	South African Standard Time 	UTC+02
SBT 	Solomon Islands Time 	UTC+11
SCT 	Seychelles Time 	UTC+04
SDT 	Samoa Daylight Time 	UTC−10
SGT 	Singapore Time 	UTC+08
SLST 	Sri Lanka Standard Time 	UTC+05:30
SRET 	Srednekolymsk Time 	UTC+11
SRT 	Suriname Time 	UTC−03
SST 	Samoa Standard Time 	UTC−11
# SST 	Singapore Standard Time 	UTC+08
SYOT 	Showa Station Time 	UTC+03
TAHT 	Tahiti Time 	UTC−10
THA 	Thailand Standard Time 	UTC+07
TFT 	French Southern and Antarctic Time[13] 	UTC+05
TJT 	Tajikistan Time 	UTC+05
TKT 	Tokelau Time 	UTC+13
TLT 	Timor Leste Time 	UTC+09
TMT 	Turkmenistan Time 	UTC+05
TRT 	Turkey Time 	UTC+03
TOT 	Tonga Time 	UTC+13
TVT 	Tuvalu Time 	UTC+12
ULAST 	Ulaanbaatar Summer Time 	UTC+09
ULAT 	Ulaanbaatar Standard Time 	UTC+08
UTC 	Coordinated Universal Time 	UTC±00
UYST 	Uruguay Summer Time 	UTC−02
UYT 	Uruguay Standard Time 	UTC−03
UZT 	Uzbekistan Time 	UTC+05
VET 	Venezuelan Standard Time 	UTC−04
VLAT 	Vladivostok Time 	UTC+10
VOLT 	Volgograd Time 	UTC+03
VOST 	Vostok Station Time 	UTC+06
VUT 	Vanuatu Time 	UTC+11
WAKT 	Wake Island Time 	UTC+12
WAST 	West Africa Summer Time 	UTC+02
WAT 	West Africa Time 	UTC+01
WEST 	Western European Summer Time 	UTC+01
WET 	Western European Time 	UTC±00
WIB 	Western Indonesian Time 	UTC+07
WIT 	Eastern Indonesian Time 	UTC+09
WITA 	Central Indonesia Time 	UTC+08
WGST 	West Greenland Summer Time[14] 	UTC−02
WGT 	West Greenland Time[15] 	UTC−03
WST 	Western Standard Time 	UTC+08
YAKT 	Yakutsk Time 	UTC+09
YEKT 	Yekaterinburg Time 	UTC+05