| Country | Country code | coordinates | Timezone offset (hours) | Summertime offset (hours) | Zone name | WS change day | WS change hour | SW change day | SW change hour | Comments |
|---|
| Afghanistan | AF | +3431+06912 | 4,5 | | Asia/Kabul | | | | | |
| Albania | AL | +4120+01950 | 1 | 2 | Europe/Tirane | | | | | |
| Algeria | DZ | +3647+00303 | 1 | 2 | Africa/Algiers | | | | | |
| American Samoa | AS | -1416-17042 | -11 | | Pacific/Pago_Pago | | | | | |
| Andorra | AD | +4230+00131 | 1 | 2 | Europe/Andorra | | | | | |
| Angola | AO | -0848+01314 | 1 | | Africa/Luanda | | | | | |
| Anguilla | AI | +1812-06304 | -4 | | America/Anguilla | | | | | |
| Antarctica | AQ | | -2 | -3 | | | | | | |
| Antigua & Barbuda | AG | +1703-06148 | -4 | | America/Antigua | | | | | |
| Argentina | AR | | -3 | | | | | | | |
| Argentina western prov | | | -4 | | | | | | | |
| Armenia | AM | +4011+04430 | 4 | 5 | Asia/Yerevan | | | | | |
| Aruba | AW | +1230-06858 | -4 | | America/Aruba | | | | | |
| Ascension | | | 0 | | | | | | | |
| Australia Northern Territory | AU | -1228+13050 | 9,5 | | Australia/Darwin | | | | | Northern Territory |
| Australia Lord Howe Island | AU | -3133+15905 | 10,5 | 11 | Australia/Lord_Howe | | | | | Lord Howe Island |
| Australia New South Wales | AU | | 10 | 11 | | | | | | |
| Australia Queensland | AU | | 10 | | | | | | | |
| Australia Victoria | AU | -3749+14458 | 10 | 11 | Australia/Melbourne | | | | | Victoria |
| Australia Australian Captial Territory | AU | | 10 | 11 | | | | | | |
| Australia South | AU | -3455+13835 | 9,5 | 10,5 | Australia/Adelaide | | | | | South Australia |
| Australia Tasmania | AU | -4253+14719 | 10 | 11 | Australia/Hobart | | | | | Tasmania |
| Australia Western | AU | -3157+11551 | 8 | | Australia/Perth | | | | | Western Australia |
| Austria | AT | +4813+01620 | 1 | 2 | Europe/Vienna | | | | | |
| Azerbajian | AZ | +4023+04951 | 3 | | Asia/Baku | | | | | |
| Azores | PT | +3744-02540 | -1 | 0 | Atlantic/Azores | | | | | Azores |
| Bahamas | BS | +2505-07721 | -5 | -4 | America/Nassau | | | | | |
| Bahrain | BH | +2623+05035 | 3 | | Asia/Bahrain | | | | | |
| Balearic Islands | | | 1 | 2 | | | | | | |
| Bangladesh | BD | +2343+09025 | 6 | | Asia/Dacca | | | | | |
| Barbados | BB | +1306-05937 | -4 | | America/Barbados | | | | | |
| Belarus | BY | +5354+02734 | 2 | 3 | Europe/Minsk | | | | | |
| Belgium | BE | +5050+00420 | 1 | 2 | Europe/Brussels | | | | | |
| Belize | BZ | +1730-08812 | -6 | | America/Belize | | | | | |
| Benin | BJ | +0629+00237 | 1 | | Africa/Porto-Novo | | | | | |
| Bermuda | BM | +3217-06446 | -4 | -3 | Atlantic/Bermuda | | | | | |
| Bhutan | BT | +2728+08939 | 6 | | Asia/Thimbu | | | | | |
| Bolivia | BO | -1630-06809 | -4 | | America/La_Paz | | | | | |
| Bonaire | | | -4 | | | | | | | |
| Bosnia Hercegovina | BA | +4352+01825 | 1 | 2 | Europe/Sarajevo | | | | | |
| Botswana | BW | -2545+02555 | 2 | | Africa/Gaborone | | | | | |
| Brazil Acre | BR | -0934-06731 | -4 | -5 | America/Porto_Acre | | | | | Acre |
| Brazil Atlantic Islands | BR | | -1 | -2 | | | | | | |
| Brazil East | BR | | -3 | -1 | | | | | | |
| Brazil West | BR | | -4 | -3 | | | | | | |
| British Virgin Islands | VG | +1827-06437 | -4 | | America/Tortola | | | | | |
| Brunei | BN | +0456+11455 | 8 | | Asia/Brunei | | | | | |
| Bulgaria | BG | +4241+02319 | 2 | 3 | Europe/Sofia | | | | | |
| Burkina Faso | BF | +1222-00131 | 0 | | Africa/Ouagadougou | | | | | |
| Burundi | BI | -0323+02922 | 2 | | Africa/Bujumbura | | | | | |
| Cambodia | KH | +1133+10455 | 7 | | Asia/Phnom_Penh | | | | | |
| Cameroon | CM | +0403+00942 | 1 | | Africa/Douala | | | | | |
| Canada Central | CA | | -6 | -5 | | | | | | |
| Canada Eastern | CA | | -5 | -4 | | | | | | |
| Canada Mountain | CA | | -7 | -6 | | | | | | |
| Canada Yukon & Pacific | CA | | -8 | -7 | | | | | | |
| Canada Atlantic | CA | | -4 | -3 | | | | | | |
| Canada Newfoundland | CA | +4734-05243 | -3,5 | -2,5 | America/St_Johns | | | | | Newfoundland Island |
| Canary Islands | ES | +2806-01524 | 0 | 1 | Atlantic/Canary | | | | | Canary Islands |
| Canton Enderbury Islands | KI | -0308-17105 | -11 | | Pacific/Enderbury | | | | | Phoenix Islands |
| Cape Verde | CV | +1455-02331 | -1 | | Atlantic/Cape_Verde | | | | | |
| Caroline Island | | | 11 | | | | | | | |
| Cayman Islands | KY | +1918-08123 | -5 | | America/Cayman | | | | | |
| Central African Rep | CF | +0422+01835 | 1 | | Africa/Bangui | | | | | |
| Chad | TD | +1207+01503 | 1 | | Africa/Ndjamena | | | | | |
| Channel Islands | | | 0 | 1 | | | | | | |
| Chatham Island | NZ | -4355-17630 | 12,75 | 13,75 | Pacific/Chatham | | | | | Chatham Islands |
| Chile | CL | -3327-07040 | -4 | -3 | America/Santiago | | | | | mainland |
| China People's Rep | CN | | 8 | | | | | | | |
| Christmas Islands | CX | -1025+10543 | -10 | | Indian/Christmas | | | | | |
| Colombia | CO | +0436-07405 | -5 | | America/Bogota | | | | | |
| Congo | CD/CG | | 1 | | | | | | | |
| Cook Islands | CK | -2114-15946 | -10 | | Pacific/Rarotonga | | | | | |
| Costa Rica | CR | +0956-08405 | -6 | | America/Costa_Rica | | | | | |
| Cote d'Ivoire | CI | +0519-00402 | 0 | | Africa/Abidjan | | | | | |
| Croatia | HR | +4548+01558 | 1 | 2 | Europe/Zagreb | | | | | |
| Cuba | CU | +2308-08222 | -5 | -4 | America/Havana | | | | | |
| Curacao | | | -4 | | | | | | | |
| Cyprus | CY | +3510+03322 | 2 | 3 | Asia/Nicosia | | | | | |
| Czech Republic | CZ | +5005+01426 | 1 | 2 | Europe/Prague | | | | | |
| Dahomey | | | 1 | | | | | | | |
| Denmark | DK | +5540+01235 | 1 | 2 | Europe/Copenhagen | | | | | |
| Djibouti | DJ | +1136+04309 | 3 | | Africa/Djibouti | | | | | |
| Dominica | DM | +1518-06124 | -4 | | America/Dominica | | | | | |
| Dominican Republic | DO | +1828-06954 | -4 | | America/Santo_Domingo | | | | | |
| Easter Island | CL | -2710-10927 | -6 | -5 | Pacific/Easter | | | | | Easter Island |
| Ecuador | EC | -0210-07950 | -5 | | America/Guayaquil | | | | | mainland |
| Egypt | EG | +3003+03115 | 2 | 3 | Africa/Cairo | | | | | |
| El Salvador | SV | +1342-08912 | -6 | | America/El_Salvador | | | | | |
| England | GB | +512830-0001845 | 0 | 1 | Europe/London | | | | | |
| Equitorial Guinea | GQ | +0345+00847 | 1 | | Africa/Malabo | | | | | |
| Eritrea | ER | +1520+03853 | 3 | | Africa/Asmera | | | | | |
| Estonia | EE | +5925+02445 | 2 | 3 | Europe/Tallinn | | | | | |
| Ethiopia | ET | +0902+03842 | 3 | | Africa/Addis_Ababa | | | | | |
| Falkland Islands | FK | -5142-05751 | -4 | -3 | Atlantic/Stanley | | | | | |
| Faroe Island | FO | +6201-00646 | 0 | 1 | Atlantic/Faeroe | | | | | |
| Fiji | FJ | -1808+17825 | 12 | | Pacific/Fiji | | | | | |
| Finland | FI | +6010+02458 | 2 | 3 | Europe/Helsinki | | | | | |
| France | FR/FX | +4852+00220 | 1 | 2 | Europe/Paris | | | | | |
| French Guiana | GF | +0456-05220 | -3 | | America/Cayenne | | | | | |
| French Polynesia | PF | | -10 | | | | | | | |
| Gabon | GA | +0023+00927 | 1 | | Africa/Libreville | | | | | |
| Galapagos Islands | EC | -0054-08936 | -5 | | Pacific/Galapagos | | | | | Galapagos Islands |
| Gambia | GM | +1328-01639 | 0 | | Africa/Banjul | | | | | |
| Gambier Island | PF | -2308-13457 | -9 | | Pacific/Gambier | | | | | Gambier Islands |
| Georgia | GE | +4143+04449 | 4 | | Asia/Tbilisi | | | | | |
| Germany | DE | +5230+01322 | 1 | 2 | Europe/Berlin | | | | | |
| Ghana | GH | +0533-00013 | 0 | | Africa/Accra | | | | | |
| Gibraltar | GI | +3608-00521 | 1 | 2 | Europe/Gibraltar | | | | | |
| Greece | GR | +3758+02343 | 2 | 3 | Europe/Athens | | | | | |
| Greenland | GL | +6411-05144 | -3 | -2 | America/Godthab | | | | | southwest Greenland |
| Greenland Thule | GL | +7634-06847 | -4 | -3 | America/Thule | | | | | northwest Greenland |
| Greenland Scoresbysun | GL | +7030-02215 | -1 | 0 | America/Scoresbysund | | | | | east Greenland |
| Grenada | GD | +1203-06145 | -4 | | America/Grenada | | | | | |
| Grenadines | | | -4 | | | | | | | |
| Guadeloupe | GP | +1614-06132 | -4 | | America/Guadeloupe | | | | | |
| Guam | GU | +1328+14445 | 10 | | Pacific/Guam | | | | | |
| Guatemala | GT | +1438-09031 | -6 | | America/Guatemala | | | | | |
| Guinea | GN | +0931-01343 | 0 | | Africa/Conakry | | | | | |
| Guinea Bissau | GW | +1151-01535 | - | 0 | Africa/Bissau | | | | | |
| Guyana | GY | +0648-05810 | -3 | | America/Guyana | | | | | |
| Haiti | HT | +1832-07220 | -5 | -4 | America/Port-au-Prince | | | | | |
| Honduras | HN | +1406-08713 | -6 | | America/Tegucigalpa | | | | | |
| Hong kong | CN | +2217+11409 | 8 | | Asia/Hong_Kong | | | | | Hong Kong |
| Hungary | HU | +4730+01905 | 1 | 2 | Europe/Budapest | | | | | |
| Iceland | IS | +6409-02151 | 0 | | Atlantic/Reykjavik | | | | | |
| India | IN | +2232+08822 | 5,5 | | Asia/Calcutta | | | | | |
| Indonesia Central | ID | | 8 | | | | | | | |
| Indonesia East | ID | | 9 | | | | | | | |
| Indonesia West | ID | | 7 | | | | | | | |
| Iran | IR | +3540+05126 | 3,5 | | Asia/Tehran | | | | | |
| Iraq | IQ | +3321+04425 | 3 | 4 | Asia/Baghdad | | | | | |
| Ireland Republic of | IE | +5320-00615 | 0 | 1 | Europe/Dublin | | | | | |
| Israel | IL | +3146+03514 | 2 | 3 | Asia/Jerusalem | | | | | |
| Italy | IT | +4154+01229 | 1 | 2 | Europe/Rome | | | | | |
| Jamaica | JM | +1800-07648 | -5 | | America/Jamaica | | | | | |
| Japan | JP | +353916+1394441 | 9 | | Asia/Tokyo | | | | | |
| Johnston Island | UM | +1700-16830 | -10 | | Pacific/Johnston | | | | | Johnston Atoll |
| Jordan | JO | +3157+03556 | 2 | 3 | Asia/Amman | | | | | |
| Kazakhstan | KZ | | 6 | 7 | | | | | | |
| Kenya | KE | -0117+03649 | 3 | | Africa/Nairobi | | | | | |
| Kiribati | KI | | 12 | | | | | | | |
| Korea Dem Republic of | KR | +3733+12658 | 9 | | Asia/Seoul | | | | | |
| Korea Republic of | KP | +3901+12545 | 9 | | Asia/Pyongyang | | | | | |
| Kusaie | | | 12 | | | | | | | |
| Kuwait | KW | +2920+04759 | 3 | | Asia/Kuwait | | | | | |
| Kwajalein | MH | +0905+16720 | -12 | | Pacific/Kwajalein | | | | | Kwajalein |
| Kyrgyzstan | | | 5 | 6 | | | | | | |
| Laos | LA | +1758+10236 | 7 | | Asia/Vientiane | | | | | |
| Latvia | LV | +5657+02406 | 2 | 3 | Europe/Riga | | | | | |
| Lebanon | LB | +3353+03530 | 2 | 3 | Asia/Beirut | | | | | |
| Leeward Islands | | | -4 | | | | | | | |
| Lesotho | LS | -2928+02730 | 2 | | Africa/Maseru | | | | | |
| Liberia | LR | +0618-01047 | 0 | | Africa/Monrovia | | | | | |
| Libya | LY | +3254+01311 | 2 | | Africa/Tripoli | | | | | |
| Lithuania | LT | +5441+02519 | 2 | 3 | Europe/Vilnius | | | | | |
| Luxembourg | LU | +4936+00609 | 1 | 2 | Europe/Luxembourg | | | | | |
| Macedonia | MK | +4159+02126 | 1 | 2 | Europe/Skopje | | | | | |
| Madagascar | MG | -1855+04731 | 3 | | Indian/Antananarivo | | | | | |
| Madeira | PT | +3238-01654 | 0 | 1 | Atlantic/Madeira | | | | | Madeira Islands |
| Malawi | MW | -1547+03500 | 2 | | Africa/Blantyre | | | | | |
| Malaysia | MY | +0310+10142 | 8 | | Asia/Kuala_Lumpur | | | | | peninsular Malaysia |
| Maldives | MV | +0410+07330 | 5 | | Indian/Maldives | | | | | |
| Mali | ML | | 0 | | | | | | | |
| Mallorca Islands | | | 1 | 2 | | | | | | |
| Malta | MT | +3554+01431 | 1 | 2 | Europe/Malta | | | | | |
| Mariana Island | | | 10 | | | | | | | |
| Marquesas Islands | PF | -0900-13930 | -9,5 | | Pacific/Marquesas | | | | | Marquesas Islands |
| Marshall Islands | MH | +0709+17112 | 12 | | Pacific/Majuro | | | | | most locations |
| Martinique | MQ | +1436-06105 | -4 | | America/Martinique | | | | | |
| Mauritania | MR | +1806-01557 | 0 | | Africa/Nouakchott | | | | | |
| Mauritius | MU | -2010+05730 | 4 | | Indian/Mauritius | | | | | |
| Mayotte | YT | -1247+04514 | 3 | | Indian/Mayotte | | | | | |
| Melilla | ES | +3553-00519 | 1 | 2 | Africa/Ceuta | | | | | Ceuta & Melilla |
| Mexico | MX | | -6 | | | | | | | |
| Mexico Baja Calif Norte | MX | | -8 | -7 | | | | | | |
| Mexico Nayarit | MX | | -7 | | | | | | | |
| Mexico Sinaloa | MX | | -7 | | | | | | | |
| Mexico Sonora | MX | | -7 | | | | | | | |
| Midway Island | UM | +2813-17722 | -11 | | Pacific/Midway | | | | | Midway Islands |
| Moldova | MD | +4700+02850 | 2 | 3 | Europe/Chisinau | | | | | |
| Moldovian Rep Pridnestrovye | | | 2 | 3 | | | | | | |
| Monaco | MC | +4342+00723 | 1 | 2 | Europe/Monaco | | | | | |
| Mongolia | MN | +4755+10653 | 8 | | Asia/Ulan_Bator | | | | | |
| Morocco | MA | +3339-00735 | 0 | | Africa/Casablanca | | | | | |
| Mozambique | MZ | -2558+03235 | 2 | | Africa/Maputo | | | | | |
| Myanmar (Burma) | MM | +1647+09610 | 6,5 | | Asia/Rangoon | | | | | |
| Namibia | NA | -2234+01706 | 1 | 2 | Africa/Windhoek | | | | | |
| Nauru Republic of | NR | -0031+16655 | 12 | | Pacific/Nauru | | | | | |
| Nepal | NP | +2743+08519 | 5,75 | | Asia/Katmandu | | | | | |
| Netherlands | NL | +5222+00454 | 1 | 2 | Europe/Amsterdam | | | | | |
| Netherlands Antilles | AN | +1211-06900 | -4 | | America/Curacao | | | | | |
| Nevis Montserrat | MS | +1644-06213 | -4 | | America/Montserrat | | | | | |
| New Caledonia | NC | -2216+16530 | 11 | | Pacific/Noumea | | | | | |
| New Hebrides | | | 11 | | | | | | | |
| New Zealand | NZ | -3652+17446 | 12 | 13 | Pacific/Auckland | | | | | most locations |
| Nicaragua | NI | +1209-08617 | -6 | -5 | America/Managua | | | | | |
| Niger | NE | +1331+00207 | 1 | | Africa/Niamey | | | | | |
| Nigeria | NG | +0627+00324 | 1 | | Africa/Lagos | | | | | |
| Niue Island | NU | -1901+16955 | -11 | | Pacific/Niue | | | | | |
| Norfolk Island | NF | -2903+16758 | 11,5 | | Pacific/Norfolk | | | | | |
| Northern Ireland | GB | +5435-00555 | 0 | 1 | Europe/Belfast | | | | | Northern Ireland |
| Northern Mariana Islands | MP | +1512+14545 | 10 | | Pacific/Saipan | | | | | |
| Norway | NO | +5955+01045 | 1 | 2 | Europe/Oslo | | | | | |
| Oman | OM | +2336+05835 | 4 | | Asia/Muscat | | | | | |
| Pakistan | PK | +2452+06703 | 5 | | Asia/Karachi | | | | | |
| Palau | PW | +0720+13429 | 9 | | Pacific/Palau | | | | | |
| Panama | PA | +0858-07932 | -5 | | America/Panama | | | | | |
| Papua New Guinea | PG | -0930+14710 | 10 | | Pacific/Port_Moresby | | | | | |
| Paraguay | PY | -2516-05740 | -4 | -3 | America/Asuncion | | | | | |
| Peru | PE | -1203-07703 | -5 | | America/Lima | | | | | |
| Philippines | PH | +1435+12100 | 8 | | Asia/Manila | | | | | |
| Pingelap | | | 12 | | | | | | | |
| Poland | PL | +5215+02100 | 1 | 2 | Europe/Warsaw | | | | | |
| Ponape Island | FM | +0658+15813 | 11 | | Pacific/Ponape | | | | | Ponape (Pohnpei) |
| Portugal | PT | +3843-00908 | 1 | 2 | Europe/Lisbon | | | | | mainland |
| Principe Island | | | 0 | | | | | | | |
| Puerto Rico | PR | +182806-0660622 | -4 | | America/Puerto_Rico | | | | | |
| Qatar | QA | +2517+05132 | 3 | | Asia/Qatar | | | | | |
| Reunion | RE | -2052+05528 | 4 | | Indian/Reunion | | | | | |
| Romania | RO | +4426+02606 | 2 | 3 | Europe/Bucharest | | | | | |
| Russian Federation zone eight | RU | | 9 | 10 | | | | | | |
| Russian Federation zone eleven | RU | | 12 | 13 | | | | | | |
| Russian Federation zone five | RU | | 6 | 7 | | | | | | |
| Russian Federation zone four | RU | | 5 | 6 | | | | | | |
| Russian Federation zone nine | RU | | 10 | 11 | | | | | | |
| Russian Federation zone one | RU | | 2 | 3 | | | | | | |
| Russian Federation zone seven | RU | | 8 | 9 | | | | | | |
| Russian Federation zone six | RU | | 7 | 8 | | | | | | |
| Russian Federation zone ten | RU | | 11 | 12 | | | | | | |
| Russian Federation zone three | RU | | 4 | 5 | | | | | | |
| Russian Federation zone two | RU | | 4 | 5 | | | | | | |
| Rwanda | RW | -0157+03004 | 2 | | Africa/Kigali | | | | | |
| Saba | MY | +0133+11020 | -4 | | Asia/Kuching | | | | | Sabah & Sarawak |
| Samoa | WS | -1350-17144 | -11 | | Pacific/Apia | | | | | |
| San Marino | SM | +4355+01228 | 1 | 2 | Europe/San_Marino | | | | | |
| Sao Tome e Principe | ST | +0020+00644 | 0 | | Africa/Sao_Tome | | | | | |
| Saudi Arabia | SA | +2438+04643 | 3 | | Asia/Riyadh | | | | | |
| Scotland | | | 0 | 1 | | | | | | |
| Senegal | SN | +1440-01726 | 0 | | Africa/Dakar | | | | | |
| Seychelles | SC | -0440+05528 | 4 | | Indian/Mahe | | | | | |
| Sierra Leone | SL | +0830-01315 | 0 | | Africa/Freetown | | | | | |
| Singapore | SG | +0117+10351 | 8 | | Asia/Singapore | | | | | |
| Slovakia | SK | +4809+01707 | 1 | 2 | Europe/Bratislava | | | | | |
| Slovenia | SI | +4603+01431 | 1 | 2 | Europe/Ljubljana | | | | | |
| Society Island | PF | -1732-14934 | -10 | | Pacific/Tahiti | | | | | Society Island |
| Solomon Islands | SB | -0932+16012 | 11 | | Pacific/Guadalcanal | | | | | |
| Somalia | SO | +0204+04522 | 3 | | Africa/Mogadishu | | | | | |
| South Africa | ZA | -2615+02800 | 2 | | Africa/Johannesburg | | | | | |
| Spain | ES | +4024-00341 | 1 | 2 | Europe/Madrid | | | | | mainland |
| Sri Lanka | LK | +0656+07951 | 5,5 | | Asia/Colombo | | | | | |
| St Christopher | | | -4 | | | | | | | |
| St Croix | | | -4 | | | | | | | |
| St Helena | SH | -1555-00542 | 0 | | Atlantic/St_Helena | | | | | |
| St John | | | -4 | | | | | | | |
| St Kitts Nevis | KN | +1718-06243 | -4 | | America/St_Kitts | | | | | |
| St Lucia | LC | +1401-06100 | -4 | | America/St_Lucia | | | | | |
| St Maarten | | | -4 | | | | | | | |
| St Pierre & Miquelon | PM | +4703-05620 | -3 | -2 | America/Miquelon | | | | | |
| St Thomas | | | -4 | | | | | | | |
| St Vincent | VC | +1309-06114 | -4 | | America/St_Vincent | | | | | |
| Sudan | SD | +1536+03232 | 2 | | Africa/Khartoum | | | | | |
| Suriname | SR | +0550-05510 | -3 | | America/Paramaribo | | | | | |
| Swaziland | SZ | -2618+03106 | 2 | | Africa/Mbabane | | | | | |
| Sweden | SE | +5920+01803 | 1 | 2 | Europe/Stockholm | | | | | |
| Switzerland | CH | +4723+00832 | 1 | 2 | Europe/Zurich | | | | | |
| Syria | SY | +3330+03618 | 2 | 3 | Asia/Damascus | | | | | |
| Tahiti | | | -10 | | | | | | | |
| Taiwan | TW | +2503+12130 | 8 | | Asia/Taipei | | | | | |
| Tajikistan | TJ | +3835+06848 | 6 | | Asia/Dushanbe | | | | | |
| Tanzania | TZ | -0648+03917 | 3 | | Africa/Dar_es_Salaam | | | | | |
| Thailand | TH | +1345+10031 | 7 | | Asia/Bangkok | | | | | |
| Togo | TG | +0608+00113 | 0 | | Africa/Lome | | | | | |
| Tonga | TO | -2110+17510 | 13 | | Pacific/Tongatapu | | | | | |
| Trinidad and Tobago | TT | +1039-06131 | -4 | | America/Port_of_Spain | | | | | |
| Tuamotu Island | | | -10 | | | | | | | |
| Tubuai Island | | | -10 | | | | | | | |
| Tunisia | TN | +3648+01011 | 1 | | Africa/Tunis | | | | | |
| Turkey | TR | +4101+02858 | 2 | 3 | Europe/Istanbul | | | | | |
| Turkmenistan | TM | +3757+05823 | 5 | | Asia/Ashkhabad | | | | | |
| Turks and Caicos Islands | TC | +2128-07108 | -5 | -4 | America/Grand_Turk | | | | | |
| Tuvalu | TV | -0831+17913 | 12 | | Pacific/Funafuti | | | | | |
| Uganda | UG | +0019+03225 | 3 | | Africa/Kampala | | | | | |
| Ukraine | UA | | 2 | 3 | | | | | | |
| United Arab Emirates | AE | +2518+05518 | 4 | | Asia/Dubai | | | | | |
| United Kingdom | GB | +512830-0001845 | 0 | 1 | Europe/London | | | | | Great Britain |
| USA Central | US | | -6 | -5 | | | | | | |
| USA Eastern | US | | -5 | -4 | | | | | | |
| USA Mountain | US | | -7 | -6 | | | | | | |
| USA Arizona | US | +332654-1120424 | -7 | | America/Phoenix | | | | | Mountain Standard Time - Arizona |
| USA Indiana East | US | | -5 | | | | | | | |
| USA Pacific | US | +340308-1181434 | -8 | -7 | America/Los_Angeles | first Apr Sun | 02:00 | last Oct Sun / Sun>=7 Nov | 02:00 | Pacific Time |
| USA Alaska | US | | -9 | -8 | | | | | | |
| USA Aleutian | US | +515248-1763929 | -10 | | America/Adak | | | | | Aleutian Islands |
| USA Hawaii | US | +211825-1575130 | -10 | | Pacific/Honolulu | | | | | Hawaii |
| Uruguay | UY | -3453-05611 | -3 | | America/Montevideo | | | | | |
| Uzbekistan | UZ | | 5 | | | | | | | |
| Vanuatu | VU | -1740+16825 | 11 | 12 | Pacific/Efate | | | | | |
| Vatican City | VA | +4154+01227 | 1 | 2 | Europe/Vatican | | | | | |
| Venezuela | VE | +1030-06656 | -4 | | America/Caracas | | | | | |
| Vietnam | VN | +1045+10640 | 7 | | Asia/Saigon | | | | | |
| Virgin Islands (US) | VI | +1821-06456 | -4 | | America/St_Thomas | | | | | |
| Wake Island | UM | +1917+16637 | 12 | | Pacific/Wake | | | | | Wake Island |
| Wales | GB | +512830-0001845 | 0 | 1 | Europe/London | | | | | |
| Wallis and Futuna Islands | WF | -1318-17610 | 12 | | Pacific/Wallis | | | | | |
| Windward Islands | | | -4 | | | | | | | |
| Yemen | YE | +1245+04512 | 3 | | Asia/Aden | | | | | |
| Yugoslavia | YU | +4450+02030 | 1 | 2 | Europe/Belgrade | | | | | |
| Zaire Kasai | | | 2 | | | | | | | |
| Zaire Kinshasa Mbandaka | CD | -0418+01518 | 1 | | Africa/Kinshasa | | | | | west Dem. Rep. of Congo |
| Zaire Haut Zaire | | | 2 | | | | | | | |
| Zaire Kivu | | | 2 | | | | | | | |
| Zaire Shaba | | | 2 | | | | | | | |
| Zambia | ZM | -1525+02817 | 2 | | Africa/Lusaka | | | | | |
| Zimbabwe | ZW | -1750+03103 | 2 | | Africa/Harare | | | | | |
| Bouvet Island | BV | | | | | | | | | |
| Cocos (Keeling) Islands | CC | -1210+09655 | | | Indian/Cocos | | | | | |
| Western Sahara | EH | +2709-01312 | | | Africa/El_Aaiun | | | | | |
| Micronesia | FM | | | | | | | | | |
| South Georgia & the South Sandwich Islands | GS | -5416-03632 | | | Atlantic/South_Georgia | | | | | |
| Heard Island & McDonald Islands | HM | | | | | | | | | |
| British Indian Ocean Territory | IO | -0720+07225 | | | Indian/Chagos | | | | | |
| Kirgizstan | KG | +4254+07436 | | | Asia/Bishkek | | | | | |
| Comoros | KM | -1141+04316 | | | Indian/Comoro | | | | | |
| Liechtenstein | LI | +4709+00931 | | | Europe/Vaduz | | | | | |
| Macao | MO | +2214+11335 | | | Asia/Macao | | | | | |
| Pitcairn | PN | -2504-13005 | | | Pacific/Pitcairn | | | | | |
| Palestine | PS | +3130+03428 | | | Asia/Gaza | | | | | |
| Svalbard & Jan Mayen | SJ | | | | | | | | | |
| French Southern & Antarctic Lands | TF | -492110+0701303 | | | Indian/Kerguelen | | | | | |
| Tokelau | TK | -0922-17114 | | | Pacific/Fakaofo | | | | | |
| East Timor | TP | | | | | | | | | |
| US minor outlying islands | UM | | | | | | | | | |
