time zone is a region of the globe that observes a uniform standard time for legalcommercial, and social purposes. Time zones tend to follow the boundaries of countries and their subdivisions instead of longitude, because it is convenient for areas in close commercial or other communication to keep the same time.

Most of the time zones on land are offset from Coordinated Universal Time (UTC) by a whole number of hours (UTC−12:00 to UTC+14:00), but a few zones are offset by 30 or 45 minutes (e.g. Newfoundland Standard Time is UTC−03:30Nepal Standard Time is UTC+05:45Indian Standard Time is UTC+05:30 and Myanmar Standard Time is UTC+06:30).

Some higher latitude and temperate zone countries use daylight saving time for part of the year, typically by adjusting local clock time by an hour. Many land time zones are skewed toward the west of the corresponding nautical time zones. This also creates a permanent daylight saving time effect.

World time zones by country

All the observed world time zones are listed by country (or territory) in the table below. There are independent states with multiple time zones, and the record-holder is France with 12 zones, but 11 of them are used in overseas areas and only one in the country’s mainland. The situation is the same in the United Kingdom, Denmark, New Zealand, Netherlands.

The countries with multiple time zones in the mainland area (some of them also have the insular territories) are Russia, USA, Canada, Australia, Mexico, Brazil, Indonesia, Kazakhstan, Mongolia, the Democratic Republic of the Congo, Kiribati, Micronesia, Chile, Spain, Portugal, and Ecuador.

The Daylight Saving Time (DST) is widely used in Europe and North America, and also in some parts of Africa, Australia, South America. It helps to make the daylight duration longer in summer by setting clock 1 hour forward in the spring (start of DST period) and setting them 1 hour backward in autumn when the DST period is over.Alphabetical list of countries and territories with their standard time zones and DST

Country or territoryUTC time offset November 2019
A
Afghanistan+04:30
Aland Islands (Finland)+02:00
Albania+01:00
Algeria+01:00
American Samoa (USA)−11:00
Andorra+01:00
Angola+01:00
Anguilla (UK)−04:00
Antigua and Barbuda−04:00
Argentina−03:00
Armenia+04:00
Aruba (Netherlands)−04:00
Ascension Island (UK)±00:00
Australia, Western Australia (WA)+08:00
Australia, South Australia (SA)+09:30
Australia, Northern Territory (NT)+09:30
Australia, New South Wales (NSW), Tasmania (TAS), Victoria (VIC), Australian Capital Territory (ACT) with Canberra capital city+10:00
Australia, Queensland (QLD)+10:00
Australia, Lord Howe Island (New South Wales)+10:30
Australia, Macquarie Island (Tasmania)+11:00
Austria+01:00
Azerbaijan+04:00
B
Bahamas−05:00
Bahrain+03:00
Bangladesh+06:00
Barbados−04:00
Belarus+03:00
Belgium+01:00
Belize−06:00
Benin+01:00
Bermuda (UK)−04:00
Bhutan+06:00
Bolivia−04:00
Bonaire (Netherlands)−04:00
Bosnia and Herzegovina+01:00
Botswana+02:00
Brazil, Acre, Southwest Amazonas−05:00
Brazil, Most of Amazonas, Rondonia, Roraima−04:00
Brazil, Mato Grosso do Sul, Mato Grosso−04:00
Brazil, Alagoas, Amapa, Maranhao, Para, Piaui, Ceara, Sergipe, Paraiba, Pernambuco, Rio Grande do Norte, Bahia, Tocantins−03:00
Brazil, Distrito Federal, Espirito Santo, Goias, Minas Gerais, Parana, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, Sao Paulo−03:00
Brazil, small islands in Atlantic (Fernando de Noronha, Trindade)−02:00
British Indian Ocean Territory (UK)+06:00
British Virgin Islands (UK)−04:00
Brunei+08:00
Bulgaria+02:00
Burkina Faso±00:00
Burundi+02:00
C
Cabo Verde−01:00
Cambodia+07:00
Cameroon+01:00
Canada – 6 time zones
Caribbean Netherlands (Netherlands)−04:00
Cayman Islands (UK)−05:00
Central African Republic+01:00
Chad+01:00
Chatham Islands (New Zealand)+12:45
Chile, main territory−04:00
Chile, Magallanes Region−03:00
Chile, Easter Island−06:00
China+08:00
Christmas Island (Australia)+07:00
Cocos (Keeling) Islands (Australia)+06:30
Colombia−05:00
Comoros+03:00
Congo, Republic of the+01:00
Congo, Dem. Rep., western part+01:00
Congo, Dem. Rep., eastern part+02:00
Cook Islands (New Zealand)−10:00
Costa Rica−06:00
Cote d’Ivoire±00:00
Croatia+01:00
Cuba−05:00
Curacao (Netherlands)−04:00
Cyprus+02:00
Czechia+01:00
D
Denmark+01:00
Djibouti+03:00
Dominica−04:00
Dominican Republic−04:00
E
Ecuador, main territory−05:00
Ecuador, Galapagos Province−06:00
Egypt+02:00
El Salvador−06:00
Equatorial Guinea+01:00
Eritrea+03:00
Estonia+02:00
Eswatini (formerly Swaziland)+02:00
Ethiopia+03:00
F
Falkland Islands (UK)−03:00
Faroe Islands (Denmark)±00:00
Fiji+12:00
Finland+02:00
France+01:00
French Guiana (France)−03:00
French Polynesia, Tahiti Island (France)−10:00
French Polynesia, Marquesas Islands (France)−09:30
French Polynesia, Gambier Islands (France)−09:00
G
Gabon+01:00
Gambia±00:00
Georgia+04:00
Germany+01:00
Ghana±00:00
Gibraltar (UK)+01:00
Greece+02:00
Greenland (Denmark), most of−03:00
Greenland (Denmark), Thule Air Base−04:00
Greenland (Denmark), Ittoqqortoormiit−01:00
Greenland (Denmark), Danmarkshavn, Station Nord±00:00
Grenada−04:00
Guadeloupe (France)−04:00
Guam (USA)+10:00
Guatemala−06:00
Guernsey (UK)±00:00
Guinea±00:00
Guinea-Bissau±00:00
Guyana−04:00
H
Haiti−05:00
Honduras−06:00
Hong Kong (China)+08:00
Hungary+01:00
I
Iceland±00:00
India+05:30
Indonesia, Sumatra Island, Java Island, West Kalimantan, Central Kalimantan+07:00
Indonesia, Sulawesi Island, Lesser Sunda Islands, North Kalimantan, East Kalimantan, South Kalimantan+08:00
Indonesia, Maluku Islands, Papua, West Papua+09:00
Iran+03:30
Iraq+03:00
Ireland±00:00
Isle of Man (UK)±00:00
Israel+02:00
Italy+01:00
J
Jamaica−05:00
Japan+09:00
Jersey (UK)±00:00
Jordan+02:00
K
Kazakhstan, western part+05:00
Kazakhstan, eastern part+06:00
Kenya+03:00
Kerguelen Islands (France)+05:00
Kiribati, Gilbert Islands+12:00
Kiribati, Phoenix Islands+13:00
Kiribati, Line Islands+14:00
Kosovo+01:00
Kuwait+03:00
Kyrgyzstan+06:00
L
Laos+07:00
Latvia+02:00
Lebanon+02:00
Lesotho+02:00
Liberia±00:00
Libya+02:00
Liechtenstein+01:00
Lithuania+02:00
Luxembourg+01:00
M
Macau (China)+08:00
Madagascar+03:00
Malawi+02:00
Malaysia+08:00
Maldives+05:00
Mali±00:00
Malta+01:00
Marshall Islands+12:00
Martinique (France)−04:00
Mauritania±00:00
Mauritius+04:00
Mayotte (France)+03:00
Mexico, most of−06:00
Mexico, state of Quintana Roo−05:00
Mexico, states of Baja California Sur, Chihuahua, Nayarit, Sinaloa−07:00
Mexico, state of Sonora−07:00
Mexico, state of Baja California−08:00
Micronesia, states of Chuuk and Yap+10:00
Micronesia, states of Kosrae and Pohnpei+11:00
Moldova+02:00
Monaco+01:00
Mongolia, most of+08:00
Mongolia, provinces of Khovd, Uvs, Bayan-Olgii+07:00
Montenegro+01:00
Montserrat (UK)−04:00
Morocco+01:00
Mozambique+02:00
Myanmar (formerly Burma)+06:30
N
Namibia+02:00
Nauru+12:00
Nepal+05:45
Netherlands+01:00
New Caledonia (France)+11:00
New Zealand+12:00
Nicaragua−06:00
Niger+01:00
Nigeria+01:00
Niue (New Zealand)−11:00
Norfolk Island (Australia)+11:00
Northern Mariana Islands (USA)+10:00
North Korea+09:00
North Macedonia (formerly Macedonia)+01:00
Norway+01:00
O
Oman+04:00
P
Pakistan+05:00
Palau+09:00
Palestine+02:00
Panama−05:00
Papua New Guinea, most of+10:00
Papua New Guinea, Bougainville Island+11:00
Paraguay−04:00
Peru−05:00
Philippines+08:00
Pitcairn Islands (UK)−08:00
Poland+01:00
Portugal, main territory±00:00
Portugal, Azores−01:00
Puerto Rico (USA)−04:00
Q
Qatar+03:00
R
Reunion (France)+04:00
Romania+02:00
Russia – 11 time zones
Rwanda+02:00
S
Saba (Netherlands)−04:00
Saint Barthelemy (France)−04:00
Saint Helena (UK)±00:00
Saint Kitts and Nevis−04:00
Saint Lucia−04:00
Saint Martin (France)−04:00
Saint Pierre and Miquelon (France)−03:00
Saint Vincent and the Grenadines−04:00
Samoa+13:00
San Marino+01:00
Sao Tome and Principe±00:00
Saudi Arabia+03:00
Senegal±00:00
Serbia+01:00
Seychelles+04:00
Sierra Leone±00:00
Singapore+08:00
Sint Eustatius (Netherlands)−04:00
Sint Maarten (Netherlands)−04:00
Slovakia+01:00
Slovenia+01:00
Solomon Islands+11:00
Somalia+03:00
South Africa+02:00
South Georgia Island (UK)−02:00
South Korea+09:00
South Sudan+03:00
Spain, main territory+01:00
Spain, Canary Islands±00:00
Sri Lanka+05:30
Sudan+02:00
Suriname−03:00
Svalbard and Jan Mayen (Norway)+01:00
Sweden+01:00
Switzerland+01:00
Syria+02:00
T
Taiwan+08:00
Tajikistan+05:00
Tanzania+03:00
Thailand+07:00
Timor-Leste+09:00
Togo±00:00
Tokelau (New Zealand)+13:00
Tonga+13:00
Trinidad and Tobago−04:00
Tristan da Cunha (UK)±00:00
Tunisia+01:00
Turkey+03:00
Turkmenistan+05:00
Turks and Caicos Islands (UK)−04:00
Tuvalu+12:00
U
Uganda+03:00
Ukraine+02:00
United Arab Emirates+04:00
United Kingdom±00:00
United States of America – 9 time zones
Uruguay−03:00
US Virgin Islands (USA)−04:00
Uzbekistan+05:00
V
Vanuatu+11:00
Vatican City (Holy See)+01:00
Venezuela−04:00
Vietnam+07:00
W
Wake Island (USA)+12:00
Wallis and Futuna (France)+12:00
Y
Yemen+03:00
Z
Zambia+02:00
Zimbabwe+02:00
About the Author

Sande Kennedy is the founder and Editor in Chief of SandeKennedy.com & Kenyans247.com He is a Kenyan-based Internetprenuer,blogger Political Activist & informer who has an interest in politics, governance, corporate-fraud and human-interest. Kindly drop me a note if you feel aggrieved on any matter that you would want to be highlighted  WhatsApp: +254791890826 Read More about me here