Time Zones
A time zone is a region of the Earth that has the same standard time. Time zones are primarily based on longitudinal lines and are designed to divide the Earth into 24 roughly equal segments, each representing one hour of time difference from the adjacent zones.
The concept of time zones became necessary with the expansion of railways and telegraph lines in the 19th century when there was a need for standardized timekeeping across vast distances. Prior to time zones, local mean solar time was used, which could vary significantly from one location to another.
Each time zone corresponds to a standard time offset from Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). UTC is often used as a reference because it is based on highly precise atomic clocks. Some regions within time zones may adjust their local time by shifting forward or backward by one hour during certain periods of the year, a practice known as Daylight Saving Time. DST is used to make better use of natural daylight during the longer days of the year.
| Flag | ISO(2) | Country Name | Time Zone | GMT Offset | DST |
|---|---|---|---|---|---|
| AD | Andorra | Europe/Andorra [CEST] | UTC + 02:00 | YES | |
| AE | United Arab Emirates | Asia/Dubai [GST] | UTC +04:00 | NO | |
| AF | Afghanistan | Asia/Kabul [AFT] | UTC +04:30 | NO | |
| AG | Antigua and Barbuda | America/Antigua [AST] | UTC - 04:00 | NO | |
| AI | Anguilla | America/Anguilla [AST] | UTC - 04:00 | NO | |
| AL | Albania | Europe/Tirane [CEST] | UTC + 02:00 | YES | |
| AM | Armenia | Asia/Yerevan [AMT] | UTC + 04:00 | NO | |
| AO | Angola | Africa/Luanda [WAT] | UTC + 01:00 | NO | |
| AQ | Antarctica | Antarctica/Casey [CAST], Antarctica/Davis [DAVT], Antarctica/Casey [CLST], Antarctica/Mawson [CLST], Antarctica/Rothera [CLST] | UTC -03:00 | NO | |
| AR | Argentina | America/Argentina/Buenos_Aires [ART], America/Argentin [ART], America/Argentina/Jujuy [ART], America/Argentina/La_Rioja [ART], America/Argentina/Salta [ART], America/Argentina/San_Juan [ART], America/Argentina/San_Luis [ART], America/Argentina/Tucuman [ART], America/Argentina/Ushuaia [ART] | UTC -03:00 | NO | |
| AS | American Samoa | Pacific/Pago_Pago [SST] | UTC - 11:00 | NO | |
| AT | Austria | Europe/Vienna [CEST] | UTC + 02:00 | YES | |
| AU | Australia | Asia/Yerevan [AMT], Antarctica/Macquarie UTC [AEST], Australia/Adelaide [ACST], Australia/Adelaide [ACST], Australia/Brisbane [AEST], Australia/Darwin [ACST], Australia/Eucla [ACWST], Australia/Lindeman [AEST], Australia/Lord_Howe [LHST], Australia/Melbourne [AEST], Australia/Sydney [AEST], Australia/Perth [AWST] | UTC +10:30 | NO | |
| AW | Aruba | America/Aruba [AST] | UTC - 04:00 | NO | |
| AX | Åland Islands | Europe/Mariehamn [EEST] | UTC +03:00 | YES | |
| AZ | Azerbaijan | Asia/Baku [AZT] | UTC + 04:00 | NO | |
| BB | Barbados | America/Barbados [AST] | UTC -04:00 | NO | |
| BD | Bangladesh | Asia/Dhaka [BST] | UTC +06:00 | NO | |
| BE | Belgium | Europe/Brussels [CEST] | UTC +02:00 | YES | |
| BF | Burkina Faso | Europe/Sofia [GMT] | UTC +03:00 | NO | |
| BG | Bulgaria | Europe/Sofia [EEST] | UTC +03:00 | YES | |
| BH | Bahrain | Asia/Bahrain [AST] | UTC +03:00 | NO | |
| BI | Burundi | Africa/Bujumbura [CAT] | UTC +02:00 | NO | |
| BJ | Benin | Africa/Porto-Novo [WAT] | UTC +01:00 | NO | |
| BL | Saint Barthélemy | America/St_Barthelemy [AST] | UTC -04:00 | NO | |
| BM | Bermuda | Atlantic/Bermuda [ADT] | UTC -03:00 | NO | |
| BN | Brunei | Asia/Brunei [BNT] | UTC +08:00 | NO | |
| BO | Bolivia | America/La_Paz [BOT] | UTC -04:00 | NO | |
| BR | Brazil | America/Araguaina [BRT], America/Belem [BRT], America/Boa_Vista [AMT], America/Campo_Grande [AMT], America/Cuiaba [AMT], America/Eirunepe [ACT], America/Fortaleza [BRT], America/Maceio [BRT], America/Manaus [BRT], America/Noronha [FNT], America/Porto_Velho [AMT], America/Recife [BRT], America/Rio_Branco [ACT], America/Santarem [ACT], America/Sao_Paulo [BRT] | UTC -05:00 | NO | |
| BS | Bahamas | America/Nassau [EDT] | UTC -04:00 | YES | |
| BT | Bhutan | Asia/Thimphu [BTT] | UTC +06:00 | NO | |
| BW | Botswana | Africa/Gaborone [CAT] | UTC +02:00 | NO | |
| BY | Belarus | Europe/Minsk [MSK] | UTC +03:00 | NO | |
| BZ | Belize | America/Belize [CST] | UTC -06:00 | NO | |
| CA | Canada | America/Atikokan [EST], America/Blanc-Sablon [EST], America/Cambridge_Bay [EST], America/Creston [EST], America/Dawson_Creek [EST], America/Fort_Nelson [EST], America/Edmonton [EST], America/Glace_Bay [EST], America/Halifax [EST], America/Iqaluit [EST], America/Moncton [EST], America/Moncton [CDT], America/Rankin_Inlet [CDT], America/Regina [CDT], America/Resolute [CDT], America/St_Johns [CDT], America/Swift_Current [CST], America/Toronto [CST], America/Vancouver [PDT], America/Whitehorse [PDT], America/Winnipeg [CDT] | UTC -07:00 | NO | |
| CD | Congo - Kinshasa | Africa/Kinshasa [WAT], Africa/Lubumbashi [WAT] | UTC +02:00 | NO | |
| CF | Central African Republic | America/Cayman [EST] | UTC -05:00 | NO | |
| CG | Congo - Brazzaville | Africa/Brazzaville [COT] | UTC +01:00 | NO | |
| CH | Switzerland | Europe/Zurich [CEST] | UTC +02:00 | YES | |
| CK | Cook Islands | Pacific/Rarotonga [CKT] | UTC -10:00 | NO | |
| CL | Chile | America/Punta_Arenas [CLT], America/Santiago [CLT], Pacific/Easter [CLT] | UTC -05:00 | YES | |
| CM | Cameroon | Africa/Douala [WAT] | UTC +01:00 | NO | |
| CN | China | Asia/Shanghai [CST] | UTC +08:00 | NO | |
| CO | Colombia | America/Bogota [COT] | UTC -05:00 | NO | |
| CR | Costa Rica | America/Costa_Rica [CST] | UTC -06:00 | NO | |
| CU | Cuba | America/Havana [CDT] | UTC -04:00 | YES | |
| CV | Cape Verde | Atlantic/Cape_Verde [CVT] | UTC -01:00 | NO | |
| CW | America/Curacao [AST] | UTC -04:00 | YES | ||
| CX | Christmas Island | Indian/Christmas [CXT], Indian/Cocos [CXT] | UTC +06:30 | NO | |
| CY | Cyprus | Asia/Famagusta [EEST] | UTC +03:00 | NO | |
| CZ | Czech Republic | Europe/Prague [CEST] | UTC +02:00 | NO | |
| DE | Germany | Europe/Berlin [CEST], Europe/Busingen [CEST] | UTC +02:00 | YES | |
| DJ | Djibouti | Africa/Djibouti [EAT], America/Dominica [AST] | UTC-04:00 | NO | |
| DK | Denmark | Europe/Copenhagen [CEST] | UTC+02:00 | NO | |
| DM | Dominica | America/Dominica [AST] | UTC-04:00 | NO | |
| DO | Dominican Republic | America/Santo_Domingo [AST] | UTC-04:00 | NO | |
| DZ | Algeria | Africa/Algiers [CET] | UTC + 01:00 | NO | |
| EC | Ecuador | America/Guayaquil [ECT], Pacific/Galapagos [ECT] | UTC-06:00 | NO | |
| EE | Estonia | Europe/Tallinn [EEST] | UTC +03:00 | YES | |
| EG | Egypt | Africa/Cairo [EEST] | UTC+03:00 | NO | |
| ER | Eritrea | Africa/Asmara [EAT] | UTC +03:00 | NO | |
| ES | Spain | Africa/Ceuta [CEST], Atlantic/Canary [WEST], Europe/Madrid [CEST] | UTC +02:00 | YES | |
| ET | Ethiopia | Africa/Addis_Ababa [EAT] | UTC +03:00 | NO | |
| FI | Finland | Europe/Helsinki [EEST] | UTC +03:00 | NO | |
| FJ | Fiji | Pacific/Fiji [FJT] | UTC +12:00 | NO | |
| FK | Falkland Islands | Atlantic/Stanley [FKT] | UTC -03:00 | NO | |
| FM | Micronesia | Pacific/Chuuk [CHUT], Pacific/Kosrae [KOST], Pacific/Pohnpei [KOST] | UTC+11:00 | NO | |
| FO | Faroe Islands | Atlantic/Faroe [WEST] | UTC +01:00 | NO | |
| FR | France | Europe/Paris [CEST] | UTC +02:00 | YES | |
| GA | Gabon | Africa/Libreville [WAT] | UTC +01:00 | NO | |
| GB | United Kingdom | Europe/London [BST] | UTC +01:00 | YES | |
| GD | Grenada | America/Grenada [AST] | UTC -04:00 | NO | |
| GE | Georgia | Asia/Tbilisi [GET] | UTC +04:00 | NO | |
| GF | French Guiana | America/Cayenne [GFT] | UTC -03:00 | NO | |
| GG | Guernsey | Europe/Guernsey [BST] | UTC +01:00 | YES | |
| GH | Ghana | Africa/Accra [GMT] | UTC | NO | |
| GI | Gibraltar | Europe/Gibraltar [CEST] | UTC +02:00 | YES | |
| GL | Greenland | America/Danmarkshavn [GMT], America/Nuuk [WGST], America/Scoresbysund [EGST], America/Thule [ADT] | UTC -03:00 | NO | |
| GM | Gambia | Africa/Banjul [GMT] | UTC | NO | |
| GN | Guinea | Africa/Conakry [GMT] | UTC | NO | |
| GP | Guadeloupe | America/Guadeloupe [AST] | UTC -04:00 | NO | |
| GQ | Equatorial Guinea | Africa/Malabo [WAT] | UTC+01:00 | NO | |
| GR | Greece | Europe/Athens [EEST] | UTC +03:00 | YES | |
| GS | South Georgia and the South Sandwich Islands | Atlantic/South_Georgia [GST] | UTC -02:00 | NO | |
| GT | Guatemala | America/Guatemala [CST] | UTC -06:00 | NO | |
| GU | Guam | Pacific/Guam [ChST] | UTC +10:00 | NO | |
| GW | Guinea-Bissau | Africa/Bissau [GMT] | UTC | NO | |
| GY | Guyana | America/Guyana [GYT] | UTC -04:00 | NO | |
| HK | Hong Kong SAR China | Asia/Hong_Kong [HKT] | UTC+08:00 | NO | |
| HN | Honduras | America/Tegucigalpa [CST] | UTC-06:00 | NO | |
| HR | Croatia | Europe/Zagreb [CEST] | UTC +02:00 | YES | |
| HT | Haiti | America/Port-au-Prince [EDT] | UTC-04:00 | YES | |
| HU | Hungary | Europe/Budapest [CEST] | UTC+02:00 | YES | |
| ID | Indonesia | Asia/Jakarta [WIB], Asia/Jayapura [WIT], Asia/Makassar [WITA], Asia/Pontianak [WIB] | UTC+09:00 | NO | |
| IE | Ireland | Europe/Dublin [IST] | UTC+01:00 | YES | |
| IL | Israel | Asia/Jerusalem [IDT] | UTC+03:00 | YES | |
| IM | Isle of Man | Europe/Isle_of_Man [BST] | UTC+01:00 | YES | |
| IN | India | Asia/Kolkata [IST] | UTC+05:30 | NO | |
| IQ | Iraq | Asia/Baghdad [AST] | UTC+03:00 | NO | |
| IR | Iran | Asia/Tehran [IRDT] | UTC+03:30 | NO | |
| IS | Iceland | Atlantic/Reykjavik [GMT] | UTC | NO | |
| IT | Italy | Europe/Rome [CEST] | UTC+02:00 | YES | |
| JE | Jersey | Europe/Jersey [BST] | UTC+01:00 | YES | |
| JM | Jamaica | America/Jamaica [EST] | UTC-05:00 | NO | |
| JO | Jordan | Asia/Amman [EET] | UTC+03:00 | NO | |
| JP | Japan | Asia/Tokyo [JST] | UTC+09:00 | NO | |
| KH | Cambodia | Asia/Phnom_Penh [ICT] | UTC +07:00 | NO | |
| KM | Comoros | Indian/Comoros [EAT] | UTC +03:00 | NO | |
| KN | Saint Kitts and Nevis | America/St_Kitts [AST] | UTC -04:00 | NO | |
| KY | Cayman Islands | America/Cayman [EST] | UTC -05:00 | NO | |
| KZ | Kazakhstan | Asia/Almaty [ALMT] | UTC+06:00 | NO | |
| LA | Laos | Asia/Vientiane [ICT] | UTC+07:00 | NO | |
| LB | Lebanon | Asia/Beirut [EEST] | UTC+03:00 | YES | |
| LC | Saint Lucia | America/St_Lucia [AST] | UTC -04:00 | NO | |
| LI | Liechtenstein | Europe/Vaduz [CEST] | UTC+02:00 | YES | |
| LK | Sri Lanka | Asia/Colombo [IST] | UTC +05:30 | NO | |
| LR | Liberia | Africa/Monrovia [GMT] | UTC | NO | |
| LS | Lesotho | Africa/Maseru [SAST] | UTC+02:00 | NO | |
| LT | Lithuania | Europe/Vilnius [EEST] | UTC+03:00 | YES | |
| LU | Luxembourg | Europe/Luxembourg [CEST] | UTC+02:00 | YES | |
| LV | Latvia | Europe/Riga [EEST] | UTC+03:00 | YES | |
| LY | Libya | Africa/Tripoli [EET] | UTC+02:00 | NO | |
| MA | Morocco | Africa/Casablanca [WEST], Africa/El_Aaiun [WEST] | UTC+01:00 | NO | |
| MC | Monaco | Europe/Monaco [CEST] | UTC+02:00 | YES | |
| MD | Moldova | Europe/Chisinau [EEST] | UTC+03:00 | NO | |
| ME | Montenegro | Europe/Podgorica [CEST] | UTC+02:00 | YES | |
| MF | Saint Martin | America/Marigot [AST] | UTC -04:00 | NO | |
| MG | Madagascar | Indian/Antananarivo [EAT] | UTC+03:00 | NO | |
| MH | Marshall Islands | Pacific/Kwajalein [+12], Pacific/Majuro [+12] | UTC+12:00 | NO | |
| MK | Macedonia | Europe/Skopje [CEST] | UTC+02:00 | YES | |
| ML | Mali | Africa/Bamako [GMT] | UTC | NO | |
| MM | Myanmar [Burma] | Asia/Yangon [MMT] | UTC+06:30 | NO | |
| MN | Mongolia | Asia/Choibalsan [CHOT], Asia/Hovd [HOVT], Asia/Ulaanbaatar [ULAT] | UTC+08:00 | NO | |
| MO | Macau SAR China | Asia/Macau [CST] | UTC+08:00 | NO | |
| MP | Northern Mariana Islands | Pacific/Saipan [ChST] | UTC+10:00 | NO | |
| MQ | Martinique | America/Martinique [AST] | UTC-04:00 | NO | |
| MR | Mauritania | Africa/Nouakchott [GMT] | UTC | NO | |
| MS | Montserrat | America/Montserrat [AST] | UTC-04:00 | NO | |
| MT | Malta | Europe/Malta [ CEST] | UTC+02:00 | YES | |
| MU | Mauritius | Indian/Mauritius [MUT] | UTC+04:00 | NO | |
| MV | Maldives | Indian/Maldives [MVT] | UTC+05:00 | NO | |
| MW | Malawi | Africa/Blantyre [CAT] | UTC+02:00 | NO | |
| MX | Mexico | America/Bahia_Banderas [CST], America/Cancun [EST], America/Chihuahua [EST], America/Ciudad_Juarez [MDT], America/Hermosillo [MST], America/Matamoros [CDT], America/Mazatlan [MST], America/Merida [CST], America/Mexico_City [CST], America/Monterrey [CST], America/Ojinaga [CST], America/Tijuana [CST] | UTC-07:00 | NO | |
| MY | Malaysia | Asia/Kuala_Lumpur [MALT], Asia/Kuching [MYT] | UTC+08:00 | NO | |
| MZ | Mozambique | Africa/Maputo [CAT] | UTC+02:00 | NO | |
| NA | Namibia | Africa/Windhoek [CAT] | UTC+02:00 | NO | |
| NC | New Caledonia | Pacific/Noumea [NCT] | UTC+11:00 | NO | |
| NE | Niger | Africa/Niamey [WAT] | UTC+01:00 | NO | |
| NF | Norfolk Island | Pacific/Norfolk [NFT] | UTC+11:00 | NO | |
| NG | Nigeria | Africa/Lagos [WAT] | UTC+01:00 | YES | |
| NI | Nicaragua | America/Managua [CST] | UTC-06:00 | NO | |
| NL | Netherlands | Europe/Amsterdam [CEST] | UTC+02:00 | YES | |
| NO | Norway | Europe/Oslo [CEST] | UTC+02:00 | YES | |
| NP | Nepal | Asia/Kathmandu [NPT] | UTC+05:45 | NO | |
| NR | Nauru | Pacific/Nauru [NRT] | UTC+12:00 | NO | |
| NU | Niue | Pacific/Niue [NUT] | UTC-11:00 | NO | |
| NZ | New Zealand | Pacific/Auckland [NZST], Pacific/Chatham [NZST] | UTC+12:45 | NO | |
| OM | Oman | Asia/Muscat [GST] | UTC +04:00 | NO | |
| PA | Panama | America/Panama [EST] | UTC -05:00 | NO | |
| PE | Peru | America/Lima [PET] | UTC -05:00 | NO | |
| PF | French Polynesia | Pacific/Gambier [GAMT], Pacific/Marquesas [MART], Pacific/Tahiti [TAHT] | UTC -10:00 | NO | |
| PG | Papua New Guinea | Pacific/Bougainville [BST], Pacific/Port_Moresby [PGT] | UTC +11:00 | NO | |
| PH | Philippines | Asia/Manila [PHT] | UTC +08:00 | NO | |
| PK | Pakistan | Asia/Karachi [PKT] | UTC +05:00 | NO | |
| PL | Poland | Europe/Warsaw [CEST] | UTC +02:00 | NO | |
| PM | Saint Pierre and Miquelon | America/Miquelon [PMST] | UTC -02:00 | YES | |
| PN | Pitcairn Islands | Pacific/Pitcairn [PST] | UTC -08:00 | NO | |
| PR | Puerto Rico | America/Puerto_Rico [AST] | UTC -04:00 | NO | |
| PS | Palestinian Territories | Asia/Gaza [EEST], Asia/Hebron [EEST] | UTC +03:00 | YES | |
| PT | Portugal | Atlantic/Azores [AZOT], Atlantic/Madeira [WEST], Europe/Lisbon [WEST] | UTC -01:00 | YES | |
| PW | Palau | Pacific/Palau [+09] | UTC +09:00 | NO | |
| PY | Paraguay | America/Asuncion [PYT] | UTC -04:00 | NO | |
| QA | Qatar | Asia/Qatar [AST] | UTC +03:00 | NO | |
| RE | Réunion | Indian/Reunion [RET] | UTC +04:00 | NO | |
| RO | Romania | Europe/Bucharest [EEST] | UTC +03:00 | YES | |
| RS | Serbia | Europe/Belgrade [CEST] | UTC +02:00 | YES | |
| RU | Russia | Asia/Anadyr [ANAT], Asia/Barnaul [KRAT], Asia/Chita [YAKT], Asia/Irkutsk [IRKT], Asia/Kamchatka [PETT], Asia/Khandyga [YAKT], Asia/Krasnoyarsk [KRAT], Asia/Magadan [MAGT], Asia/Novokuznetsk [KRAT], Asia/Novosibirsk [NOVT], Asia/Omsk [OMST], Asia/Sakhalin [SAKT], Asia/Srednekolymsk [SRET], Asia/Tomsk [KRAT], Asia/Ust-Nera [VLAT], Asia/Vladivostok [VLAT], Asia/Yakutsk [YAKT], Asia/Yekaterinburg [YEKT], Europe/Astrakhan [SAMT], Europe/Kaliningrad [FET], Europe/Kirov [KIZT], Europe/Moscow [MSK], Europe/Samara [SAMT], Europe/Saratov [SAMT], Europe/Ulyanovsk [SAMT], Europe/Volgograd [VOLT] | UTC +12:00 | YES | |
| RW | Rwanda | Africa/Kigali [CAT] | UTC +02:00 | NO | |
| SA | Saudi Arabia | Asia/Riyadh [AST] | UTC +03:00 | NO | |
| SB | Solomon Islands | Pacific/Guadalcanal [SBT] | UTC +11:00 | NO | |
| SC | Seychelles | Indian/Mahe [SCT] | UTC +04:00 | NO | |
| SD | Sudan | Africa/Khartoum [CAT] | UTC +02:00 | NO | |
| SE | Sweden | Europe/Stockholm [CEST] | UTC +02:00 | YES | |
| SG | Singapore | Asia/Singapore [SGT] | UTC +08:00 | NO | |
| SH | Saint Helena | Atlantic/St_Helena [GMT] | UTC | NO | |
| SI | Slovenia | Europe/Ljubljana [CEST] | UTC +02:00 | YES | |
| SJ | Svalbard and Jan Mayen | Arctic/Longyearbyen [CEST] | UTC +02:00 | YES | |
| SK | Slovakia | Europe/Bratislava [CEST] | UTC +02:00 | YES | |
| SL | Sierra Leone | Africa/Freetown [GMT] | UTC | NO | |
| SM | San Marino | Europe/San_Marino [CEST] | UTC +02:00 | YES | |
| SN | Senegal | Africa/Dakar [GMT] | UTC | NO | |
| SO | Somalia | Africa/Mogadishu [EAT] | UTC +03:00 | NO | |
| SR | Suriname | America/Paramaribo [SRT] | UTC -03:00 | NO | |
| SS | Africa/Juba [CAT] | UTC +02:00 | NO | ||
| ST | São Tomé and Príncipe | Africa/Sao_Tome [GMT] | UTC | NO | |
| SV | El Salvador | America/El_Salvador [CST] | UTC+06:00 | NO | |
| SX | America/Lower_Princes [AST] | UTC -04:00 | NO | ||
| SY | Syria | Asia/Damascus [EEST] | UTC +03:00 | YES | |
| SZ | Swaziland | Africa/Mbabane [SAST] | UTC +02:00 | NO | |
| TC | Turks and Caicos Islands | America/Grand_Turk [EST] | UTC -05:00 | NO | |
| TD | Chad | Africa/Ndjamena [WAT] | UTC +01:00 | NO | |
| TF | French Southern Territories | Indian/Kerguelen [TFT] | UTC +05:00 | NO | |
| TG | Togo | Africa/Lome [GMT] | UTC | NO | |
| TH | Thailand | Asia/Bangkok [ICT] | UTC +07:00 | NO | |
| TJ | Tajikistan | Asia/Dushanbe [TJT] | UTC +05:00 | NO | |
| TK | Tokelau | Pacific/Fakaofo [TKT] | UTC +13:00 | NO | |
| TL | Timor-Leste | Asia/Dili [TLT] | UTC +09:00 | NO | |
| TM | Turkmenistan | Asia/Ashgabat [TMT] | UTC +05:00 | NO | |
| TN | Tunisia | Africa/Tunis [CET] | UTC +01:00 | NO | |
| TO | Tonga | Pacific/Tongatapu [TOT] | UTC +13:00 | NO | |
| TR | Turkey | Europe/Istanbul [TRT] | UTC +03:00 | NO | |
| TT | Trinidad and Tobago | America/Port_of_Spain [AST] | UTC -04:00 | NO | |
| TV | Tuvalu | Pacific/Funafuti [TVT] | UTC +12:00 | NO | |
| TW | Taiwan | Asia/Taipei [CST] | UTC +08:00 | NO | |
| TZ | Tanzania | Africa/Dar_es_Salaam [EAT] | UTC +03:00 | NO | |
| UA | Ukraine | Europe/Kyiv [EEST], Europe/Simferopol [MSK] | UTC +03:00 | YES | |
| UG | Uganda | Africa/Kampala [EAT] | UTC +03:00 | NO | |
| UM | U.S. Minor Outlying Islands | Pacific/Midway [SST], Pacific/Wake [WAKT] | UTC -11:00 | NO | |
| US | United States | America/Adak [HST], America/Anchorage [AKDT], America/Boise [MDT], America/Chicago [CDT], America/Denver [MDT], America/Detroit [EDT], America/Indiana/Indianapolis [EDT], America/Kentucky/Monticello [EDT], America/Los_Angeles [PDT], America/Menominee [CDT], America/Metlakatla [AKDT], America/New_York [EDT], America/Nome [AKDT], America/North_Dakota/Beulah [CDT], America/North_Dakota/Center [CDT], America/North_Dakota/New_Salem [CDT], America/Phoenix [MST], America/Sitka [AKDT], America/Yakutat [AKDT], Pacific/Honolulu [HST] | UTC -10:00 | NO | |
| UY | Uruguay | America/Montevideo [UYT] | UTC -03:00 | NO | |
| UZ | Uzbekistan | Asia/Samarkand [UZT], Asia/Tashkent [UZT] | UTC +05:00 | NO | |
| VA | Vatican City | Europe/Vatican [CEST] | UTC+02:00 | YES | |
| VC | Saint Vincent and the Grenadines | America/St_Vincent [AST] | UTC -04:00 | NO | |
| VE | Venezuela | America/Caracas [VET] | UTC -04:00 | NO | |
| VG | British Virgin Islands | America/Tortola [AST] | UTC -04:00 | NO | |
| VI | U.S. Virgin Islands | America/St_Thomas [AST] | UTC -04:00 | NO | |
| VN | Vietnam | Asia/Ho_Chi_Minh [ICT] | UTC +07:00 | NO | |
| VU | Vanuatu | Pacific/Efate [VUT] | UTC +11:00 | NO | |
| WF | Wallis and Futuna | Pacific/Wallis [WFT] | UTC +12:00 | NO | |
| WS | Samoa | Pacific/Apia [WST] | UTC +13:00 | NO | |
| YE | Yemen | Asia/Aden [AST] | UTC +03:00 | NO | |
| YT | Mayotte | Indian/Mayotte [EAT] | UTC+03:00 | NO | |
| ZA | South Africa | Africa/Johannesburg [SAST] | UTC +02:00 | NO | |
| ZM | Zambia | Africa/Lusaka [CAT] | UTC +02:00 | NO | |
| ZW | Zimbabwe | Africa/Harare [CAT] | UTC +02:00 | NO |
