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УкраїнськаTime difference between Harpenden, United Kingdom and other cities
Harpenden time zone: UTC+00:00 or GMTFind out the time difference between and Harpenden,
or see the time difference between Harpenden and other cities in the table below.
| City and country | Time difference | City and country | Time difference |
|---|---|---|---|
| Abidjan, Cote d'Ivoire | the same time as Harpenden | Lahore, Pakistan | 5 hours ahead of Harpenden |
| Abu Dhabi, United Arab Emirates | 4 hours ahead of Harpenden | Leeds, United Kingdom | the same time as Harpenden |
| Abu Ghraib, Iraq | 3 hours ahead of Harpenden | Leipzig, Germany | 1 hour ahead of Harpenden |
| Accra, Ghana | the same time as Harpenden | León, Mexico | 6 hours behind Harpenden |
| Adana, Turkey | 3 hours ahead of Harpenden | Libreville, Gabon | 1 hour ahead of Harpenden |
| Addis Ababa, Ethiopia | 3 hours ahead of Harpenden | Likasi, DR Congo | 2 hours ahead of Harpenden |
| Adelaide, Australia | 10 hours 30 minutes ahead of Harpenden | Lilongwe, Malawi | 2 hours ahead of Harpenden |
| Aden, Yemen | 3 hours ahead of Harpenden | Lima, Peru | 5 hours behind Harpenden |
| Agadir, Morocco | 1 hour ahead of Harpenden | Lisbon, Portugal | the same time as Harpenden |
| Ahmedabad, India | 5 hours 30 minutes ahead of Harpenden | Liverpool, United Kingdom | the same time as Harpenden |
| Ahvāz, Iran | 3 hours 30 minutes ahead of Harpenden | Lomé, Togo | the same time as Harpenden |
| Al Hudaydah, Yemen | 3 hours ahead of Harpenden | London, United Kingdom | the same time as Harpenden |
| Aleppo, Syria | 3 hours ahead of Harpenden | Los Angeles, USA | 8 hours behind Harpenden |
| Alexandria, Egypt | 2 hours ahead of Harpenden | Luanda, Angola | 1 hour ahead of Harpenden |
| Algiers, Algeria | 1 hour ahead of Harpenden | Lubumbashi, DR Congo | 2 hours ahead of Harpenden |
| Almaty, Kazakhstan | 6 hours ahead of Harpenden | Lucknow, India | 5 hours 30 minutes ahead of Harpenden |
| Amman, Jordan | 3 hours ahead of Harpenden | Luhansk, Ukraine | 3 hours ahead of Harpenden |
| Amsterdam, Netherlands | 1 hour ahead of Harpenden | Lusaka, Zambia | 2 hours ahead of Harpenden |
| Ankara, Turkey | 3 hours ahead of Harpenden | Luxor, Egypt | 2 hours ahead of Harpenden |
| Antalya, Turkey | 3 hours ahead of Harpenden | Lviv, Ukraine | 2 hours ahead of Harpenden |
| Antananarivo, Madagascar | 3 hours ahead of Harpenden | Lyon, France | 1 hour ahead of Harpenden |
| Antwerp, Belgium | 1 hour ahead of Harpenden | Łódź, Poland | 1 hour ahead of Harpenden |
| Arequipa, Peru | 5 hours behind Harpenden | Macao, Macau | 8 hours ahead of Harpenden |
| Ashgabat, Turkmenistan | 5 hours ahead of Harpenden | Madrid, Spain | 1 hour ahead of Harpenden |
| Asmara, Eritrea | 3 hours ahead of Harpenden | Makassar, Indonesia | 8 hours ahead of Harpenden |
| Asunción, Paraguay | 3 hours behind Harpenden | Málaga, Spain | 1 hour ahead of Harpenden |
| Asyut, Egypt | 2 hours ahead of Harpenden | Managua, Nicaragua | 6 hours behind Harpenden |
| Athens, Greece | 2 hours ahead of Harpenden | Manaus, Brazil | 4 hours behind Harpenden |
| Auckland, New Zealand | 13 hours ahead of Harpenden | Mandalay, Myanmar | 6 hours 30 minutes ahead of Harpenden |
| Austin, USA | 6 hours behind Harpenden | Manila, Philippines | 8 hours ahead of Harpenden |
| Bacolod City, Philippines | 8 hours ahead of Harpenden | Mansoura, Egypt | 2 hours ahead of Harpenden |
| Baghdad, Iraq | 3 hours ahead of Harpenden | Maputo, Mozambique | 2 hours ahead of Harpenden |
| Baku, Azerbaijan | 4 hours ahead of Harpenden | Mar del Plata, Argentina | 3 hours behind Harpenden |
| Baltimore, USA | 5 hours behind Harpenden | Maracaibo, Venezuela | 4 hours behind Harpenden |
| Bamako, Mali | the same time as Harpenden | Maracay, Venezuela | 4 hours behind Harpenden |
| Bandung, Indonesia | 7 hours ahead of Harpenden | Mariupol, Ukraine | 2 hours ahead of Harpenden |
| Bangkok, Thailand | 7 hours ahead of Harpenden | Marrakesh, Morocco | 1 hour ahead of Harpenden |
| Bangui, Central African Republic | 1 hour ahead of Harpenden | Marseille, France | 1 hour ahead of Harpenden |
| Barcelona, Venezuela | 4 hours behind Harpenden | Mashhad, Iran | 3 hours 30 minutes ahead of Harpenden |
| Barcelona, Spain | 1 hour ahead of Harpenden | Matola, Mozambique | 2 hours ahead of Harpenden |
| Barnaul, Russia | 7 hours ahead of Harpenden | Maturín, Venezuela | 4 hours behind Harpenden |
| Barquisimeto, Venezuela | 4 hours behind Harpenden | Mawlamyine, Myanmar | 6 hours 30 minutes ahead of Harpenden |
| Barranquilla, Colombia | 5 hours behind Harpenden | Mbuji-Mayi, DR Congo | 2 hours ahead of Harpenden |
| Basrah, Iraq | 3 hours ahead of Harpenden | Mecca, Saudi Arabia | 3 hours ahead of Harpenden |
| Beijing, China | 8 hours ahead of Harpenden | Medan, Indonesia | 7 hours ahead of Harpenden |
| Beira, Mozambique | 2 hours ahead of Harpenden | Medellín, Colombia | 5 hours behind Harpenden |
| Beirut, Lebanon | 2 hours ahead of Harpenden | Medina, Saudi Arabia | 3 hours ahead of Harpenden |
| Bekasi, Indonesia | 7 hours ahead of Harpenden | Meknes, Morocco | 1 hour ahead of Harpenden |
| Belém, Brazil | 3 hours behind Harpenden | Melbourne, Australia | 11 hours ahead of Harpenden |
| Belgrade, Serbia | 1 hour ahead of Harpenden | Memphis, USA | 6 hours behind Harpenden |
| Belo Horizonte, Brazil | 3 hours behind Harpenden | Mendoza, Argentina | 3 hours behind Harpenden |
| Bengaluru, India | 5 hours 30 minutes ahead of Harpenden | Mexico City, Mexico | 6 hours behind Harpenden |
| Benghazi, Libya | 2 hours ahead of Harpenden | Milan, Italy | 1 hour ahead of Harpenden |
| Benin City, Nigeria | 1 hour ahead of Harpenden | Minsk, Belarus | 3 hours ahead of Harpenden |
| Benoni, South Africa | 2 hours ahead of Harpenden | Mississauga, Canada | 5 hours behind Harpenden |
| Berlin, Germany | 1 hour ahead of Harpenden | Mogadishu, Somalia | 3 hours ahead of Harpenden |
| Birmingham, United Kingdom | the same time as Harpenden | Mombasa, Kenya | 3 hours ahead of Harpenden |
| Bishkek, Kyrgyzstan | 6 hours ahead of Harpenden | Monrovia, Liberia | the same time as Harpenden |
| Blantyre, Malawi | 2 hours ahead of Harpenden | Monterrey, Mexico | 6 hours behind Harpenden |
| Bogotá, Colombia | 5 hours behind Harpenden | Montevideo, Uruguay | 3 hours behind Harpenden |
| Boston, USA | 5 hours behind Harpenden | Montreal, Canada | 5 hours behind Harpenden |
| Bouaké, Cote d'Ivoire | the same time as Harpenden | Moscow, Russia | 3 hours ahead of Harpenden |
| Boumerdas, Algeria | 1 hour ahead of Harpenden | Mosul, Iraq | 3 hours ahead of Harpenden |
| Brampton, Canada | 5 hours behind Harpenden | Multan, Pakistan | 5 hours ahead of Harpenden |
| Brasília, Brazil | 3 hours behind Harpenden | Mumbai, India | 5 hours 30 minutes ahead of Harpenden |
| Bratislava, Slovakia | 1 hour ahead of Harpenden | Munich, Germany | 1 hour ahead of Harpenden |
| Brazzaville, Congo | 1 hour ahead of Harpenden | Murcia, Spain | 1 hour ahead of Harpenden |
| Bremen, Germany | 1 hour ahead of Harpenden | Muscat, Oman | 4 hours ahead of Harpenden |
| Brisbane, Australia | 10 hours ahead of Harpenden | Muzaffarabad, Pakistan | 5 hours ahead of Harpenden |
| Bristol, United Kingdom | the same time as Harpenden | Mwanza, Tanzania | 3 hours ahead of Harpenden |
| Brussels, Belgium | 1 hour ahead of Harpenden | Mykolayiv, Ukraine | 2 hours ahead of Harpenden |
| Bucaramanga, Colombia | 5 hours behind Harpenden | N'Djamena, Chad | 1 hour ahead of Harpenden |
| Bucharest, Romania | 2 hours ahead of Harpenden | Nagoya, Japan | 9 hours ahead of Harpenden |
| Budapest, Hungary | 1 hour ahead of Harpenden | Nagpur, India | 5 hours 30 minutes ahead of Harpenden |
| Buenos Aires, Argentina | 3 hours behind Harpenden | Nairobi, Kenya | 3 hours ahead of Harpenden |
| Bulawayo, Zimbabwe | 2 hours ahead of Harpenden | Najaf, Iraq | 3 hours ahead of Harpenden |
| Bursa, Turkey | 3 hours ahead of Harpenden | Namangan, Uzbekistan | 5 hours ahead of Harpenden |
| Busan, South Korea | 9 hours ahead of Harpenden | Namp'o, North Korea | 9 hours ahead of Harpenden |
| Cairo, Egypt | 2 hours ahead of Harpenden | Nanchong, China | 8 hours ahead of Harpenden |
| Calgary, Canada | 7 hours behind Harpenden | Nanjing, China | 8 hours ahead of Harpenden |
| Callao, Peru | 5 hours behind Harpenden | Naples, Italy | 1 hour ahead of Harpenden |
| Cape Town, South Africa | 2 hours ahead of Harpenden | Naypyitaw, Myanmar | 6 hours 30 minutes ahead of Harpenden |
| Caracas, Venezuela | 4 hours behind Harpenden | New York, USA | 5 hours behind Harpenden |
| Cartagena, Colombia | 5 hours behind Harpenden | Niamey, Niger | 1 hour ahead of Harpenden |
| Cebu City, Philippines | 8 hours ahead of Harpenden | Nizhny Novgorod, Russia | 3 hours ahead of Harpenden |
| Charlotte, USA | 5 hours behind Harpenden | Nouakchott, Mauritania | the same time as Harpenden |
| Chelyabinsk, Russia | 5 hours ahead of Harpenden | Novosibirsk, Russia | 7 hours ahead of Harpenden |
| Chengdu, China | 8 hours ahead of Harpenden | Nuremberg, Germany | 1 hour ahead of Harpenden |
| Chennai, India | 5 hours 30 minutes ahead of Harpenden | Odesa, Ukraine | 2 hours ahead of Harpenden |
| Chicago, USA | 6 hours behind Harpenden | Omdurman, Sudan | 2 hours ahead of Harpenden |
| Chiclayo, Peru | 5 hours behind Harpenden | Omsk, Russia | 6 hours ahead of Harpenden |
| Chişinău, Moldova | 2 hours ahead of Harpenden | Oran, Algeria | 1 hour ahead of Harpenden |
| Chittagong, Bangladesh | 6 hours ahead of Harpenden | Osaka, Japan | 9 hours ahead of Harpenden |
| Chongqing, China | 8 hours ahead of Harpenden | Oslo, Norway | 1 hour ahead of Harpenden |
| City of Taguig, Philippines | 8 hours ahead of Harpenden | Ottawa, Canada | 5 hours behind Harpenden |
| Ciudad Guayana, Venezuela | 4 hours behind Harpenden | Ouagadougou, Burkina Faso | the same time as Harpenden |
| Ciudad Juárez, Mexico | 6 hours behind Harpenden | Palembang, Indonesia | 7 hours ahead of Harpenden |
| Ciudad Nezahualcoyotl, Mexico | 6 hours behind Harpenden | Palermo, Italy | 1 hour ahead of Harpenden |
| Cochabamba, Bolivia | 4 hours behind Harpenden | Paris, France | 1 hour ahead of Harpenden |
| Cologne, Germany | 1 hour ahead of Harpenden | Patna, India | 5 hours 30 minutes ahead of Harpenden |
| Colombo, Sri Lanka | 5 hours 30 minutes ahead of Harpenden | Pereira, Colombia | 5 hours behind Harpenden |
| Columbus, USA | 5 hours behind Harpenden | Perm, Russia | 5 hours ahead of Harpenden |
| Conakry, Guinea | the same time as Harpenden | Perth, Australia | 8 hours ahead of Harpenden |
| Constantine, Algeria | 1 hour ahead of Harpenden | Peshawar, Pakistan | 5 hours ahead of Harpenden |
| Copenhagen, Denmark | 1 hour ahead of Harpenden | Petaling Jaya, Malaysia | 8 hours ahead of Harpenden |
| Córdoba, Argentina | 3 hours behind Harpenden | Philadelphia, USA | 5 hours behind Harpenden |
| Cotonou, Benin | 1 hour ahead of Harpenden | Phnom Penh, Cambodia | 7 hours ahead of Harpenden |
| Cúcuta, Colombia | 5 hours behind Harpenden | Phoenix, USA | 7 hours behind Harpenden |
| Curitiba, Brazil | 3 hours behind Harpenden | Pietermaritzburg, South Africa | 2 hours ahead of Harpenden |
| Da Nang, Vietnam | 7 hours ahead of Harpenden | Pikine, Senegal | the same time as Harpenden |
| Daegu, South Korea | 9 hours ahead of Harpenden | Pointe-Noire, Congo | 1 hour ahead of Harpenden |
| Daejeon, South Korea | 9 hours ahead of Harpenden | Port Elizabeth, South Africa | 2 hours ahead of Harpenden |
| Dakar, Senegal | the same time as Harpenden | Port Harcourt, Nigeria | 1 hour ahead of Harpenden |
| Dallas, USA | 6 hours behind Harpenden | Port Said, Egypt | 2 hours ahead of Harpenden |
| Damascus, Syria | 3 hours ahead of Harpenden | Port Sudan, Sudan | 2 hours ahead of Harpenden |
| Dammam, Saudi Arabia | 3 hours ahead of Harpenden | Port-au-Prince, Haiti | 5 hours behind Harpenden |
| Dar es Salaam, Tanzania | 3 hours ahead of Harpenden | Porto Alegre, Brazil | 3 hours behind Harpenden |
| Davao City, Philippines | 8 hours ahead of Harpenden | Poznań, Poland | 1 hour ahead of Harpenden |
| Delhi, India | 5 hours 30 minutes ahead of Harpenden | Prague, Czech Republic | 1 hour ahead of Harpenden |
| Denver, USA | 7 hours behind Harpenden | Pretoria, South Africa | 2 hours ahead of Harpenden |
| Detroit, USA | 5 hours behind Harpenden | Pristina, Kosovo | 1 hour ahead of Harpenden |
| Dhaka, Bangladesh | 6 hours ahead of Harpenden | Puebla City, Mexico | 6 hours behind Harpenden |
| Djibouti, Djibouti | 3 hours ahead of Harpenden | Puente Alto, Chile | 3 hours behind Harpenden |
| Dnipro, Ukraine | 2 hours ahead of Harpenden | Pune, India | 5 hours 30 minutes ahead of Harpenden |
| Donetsk, Ukraine | 3 hours ahead of Harpenden | Pyongyang, North Korea | 9 hours ahead of Harpenden |
| Dongguan, China | 8 hours ahead of Harpenden | Qom, Iran | 3 hours 30 minutes ahead of Harpenden |
| Dortmund, Germany | 1 hour ahead of Harpenden | Québec, Canada | 5 hours behind Harpenden |
| Douala, Cameroon | 1 hour ahead of Harpenden | Quetta, Pakistan | 5 hours ahead of Harpenden |
| Dresden, Germany | 1 hour ahead of Harpenden | Quezon City, Philippines | 8 hours ahead of Harpenden |
| Dubai, United Arab Emirates | 4 hours ahead of Harpenden | Quilmes, Argentina | 3 hours behind Harpenden |
| Dublin, Ireland | the same time as Harpenden | Quito, Ecuador | 5 hours behind Harpenden |
| Duisburg, Germany | 1 hour ahead of Harpenden | Rabat, Morocco | 1 hour ahead of Harpenden |
| Durban, South Africa | 2 hours ahead of Harpenden | Rajshahi, Bangladesh | 6 hours ahead of Harpenden |
| Dushanbe, Tajikistan | 5 hours ahead of Harpenden | Rawalpindi, Pakistan | 5 hours ahead of Harpenden |
| Dusseldorf, Germany | 1 hour ahead of Harpenden | Recife, Brazil | 3 hours behind Harpenden |
| Ecatepec de Morelos, Mexico | 6 hours behind Harpenden | Riga, Latvia | 2 hours ahead of Harpenden |
| Edinburgh, United Kingdom | the same time as Harpenden | Rio de Janeiro, Brazil | 3 hours behind Harpenden |
| Edmonton, Canada | 7 hours behind Harpenden | Riyadh, Saudi Arabia | 3 hours ahead of Harpenden |
| El Mahalla El Kubra, Egypt | 2 hours ahead of Harpenden | Rome, Italy | 1 hour ahead of Harpenden |
| El Paso, USA | 7 hours behind Harpenden | Rosario, Argentina | 3 hours behind Harpenden |
| Erbil, Iraq | 3 hours ahead of Harpenden | Rostov-on-Don, Russia | 3 hours ahead of Harpenden |
| Essen, Germany | 1 hour ahead of Harpenden | Rotterdam, Netherlands | 1 hour ahead of Harpenden |
| Faisalabad, Pakistan | 5 hours ahead of Harpenden | Saint Petersburg, Russia | 3 hours ahead of Harpenden |
| Fes, Morocco | 1 hour ahead of Harpenden | Saitama, Japan | 9 hours ahead of Harpenden |
| Fort Worth, USA | 6 hours behind Harpenden | Salé, Morocco | 1 hour ahead of Harpenden |
| Fortaleza, Brazil | 3 hours behind Harpenden | Salta, Argentina | 3 hours behind Harpenden |
| Frankfurt am Main, Germany | 1 hour ahead of Harpenden | Salvador, Brazil | 3 hours behind Harpenden |
| Freetown, Sierra Leone | the same time as Harpenden | Samara, Russia | 4 hours ahead of Harpenden |
| Fukuoka, Japan | 9 hours ahead of Harpenden | San Antonio, USA | 6 hours behind Harpenden |
| Garoua, Cameroon | 1 hour ahead of Harpenden | San Diego, USA | 8 hours behind Harpenden |
| Gaza, Palestinian Territories | 2 hours ahead of Harpenden | San Francisco, USA | 8 hours behind Harpenden |
| Gaziantep, Turkey | 3 hours ahead of Harpenden | San Jose, USA | 8 hours behind Harpenden |
| Gdańsk, Poland | 1 hour ahead of Harpenden | San Juan, Puerto Rico | 4 hours behind Harpenden |
| General Santos, Philippines | 8 hours ahead of Harpenden | San Miguel de Tucumán, Argentina | 3 hours behind Harpenden |
| Genoa, Italy | 1 hour ahead of Harpenden | San Pedro Sula, Honduras | 6 hours behind Harpenden |
| Giza, Egypt | 2 hours ahead of Harpenden | San Salvador, El Salvador | 6 hours behind Harpenden |
| Glasgow, United Kingdom | the same time as Harpenden | Sanaa, Yemen | 3 hours ahead of Harpenden |
| Goiânia, Brazil | 3 hours behind Harpenden | Santa Cruz de la Sierra, Bolivia | 4 hours behind Harpenden |
| Gold Coast, Australia | 10 hours ahead of Harpenden | Santa Fe, Argentina | 3 hours behind Harpenden |
| Gomel, Belarus | 3 hours ahead of Harpenden | Santa Marta, Colombia | 5 hours behind Harpenden |
| Gothenburg, Sweden | 1 hour ahead of Harpenden | Santiago, Chile | 3 hours behind Harpenden |
| Goyang, South Korea | 9 hours ahead of Harpenden | Santiago de Cali, Colombia | 5 hours behind Harpenden |
| Guadalajara, Mexico | 6 hours behind Harpenden | Santiago de Cuba, Cuba | 5 hours behind Harpenden |
| Guangzhou, China | 8 hours ahead of Harpenden | Santiago de los Caballeros, Dominican Republic | 4 hours behind Harpenden |
| Guatemala City, Guatemala | 6 hours behind Harpenden | Santo Domingo, Dominican Republic | 4 hours behind Harpenden |
| Guayaquil, Ecuador | 5 hours behind Harpenden | São Paulo, Brazil | 3 hours behind Harpenden |
| Gujranwala, Pakistan | 5 hours ahead of Harpenden | Sapporo, Japan | 9 hours ahead of Harpenden |
| Gwangju, South Korea | 9 hours ahead of Harpenden | Sarajevo, Bosnia and Herzegovina | 1 hour ahead of Harpenden |
| Haiphong, Vietnam | 7 hours ahead of Harpenden | Saratov, Russia | 4 hours ahead of Harpenden |
| Hama, Syria | 3 hours ahead of Harpenden | Seattle, USA | 8 hours behind Harpenden |
| Hamburg, Germany | 1 hour ahead of Harpenden | Sendai, Japan | 9 hours ahead of Harpenden |
| Hamhung, North Korea | 9 hours ahead of Harpenden | Seoul, South Korea | 9 hours ahead of Harpenden |
| Hamilton, Canada | 5 hours behind Harpenden | Sevastopol, Ukraine | 3 hours ahead of Harpenden |
| Hangzhou, China | 8 hours ahead of Harpenden | Seville, Spain | 1 hour ahead of Harpenden |
| Hanoi, Vietnam | 7 hours ahead of Harpenden | Shah Alam, Malaysia | 8 hours ahead of Harpenden |
| Hanover, Germany | 1 hour ahead of Harpenden | Shanghai, China | 8 hours ahead of Harpenden |
| Harare, Zimbabwe | 2 hours ahead of Harpenden | Sharjah, United Arab Emirates | 4 hours ahead of Harpenden |
| Harbin, China | 8 hours ahead of Harpenden | Sheffield, United Kingdom | the same time as Harpenden |
| Hargeysa, Somalia | 3 hours ahead of Harpenden | Shenyang, China | 8 hours ahead of Harpenden |
| Havana, Cuba | 5 hours behind Harpenden | Shenzhen, China | 8 hours ahead of Harpenden |
| Helsinki, Finland | 2 hours ahead of Harpenden | Shiraz, Iran | 3 hours 30 minutes ahead of Harpenden |
| Hiroshima, Japan | 9 hours ahead of Harpenden | Shymkent, Kazakhstan | 6 hours ahead of Harpenden |
| Ho Chi Minh City, Vietnam | 7 hours ahead of Harpenden | Singapore, Singapore | 8 hours ahead of Harpenden |
| Homs, Syria | 3 hours ahead of Harpenden | Skopje, North Macedonia | 1 hour ahead of Harpenden |
| Hong Kong, Hong Kong | 8 hours ahead of Harpenden | Sofia, Bulgaria | 2 hours ahead of Harpenden |
| Houston, USA | 6 hours behind Harpenden | Stockholm, Sweden | 1 hour ahead of Harpenden |
| Hyderabad, India | 5 hours 30 minutes ahead of Harpenden | Stuttgart, Germany | 1 hour ahead of Harpenden |
| Hyderābād, Pakistan | 5 hours ahead of Harpenden | Suez, Egypt | 2 hours ahead of Harpenden |
| Ibadan, Nigeria | 1 hour ahead of Harpenden | Sulaymaniyah, Iraq | 3 hours ahead of Harpenden |
| Ibague, Colombia | 5 hours behind Harpenden | Surabaya, Indonesia | 7 hours ahead of Harpenden |
| Incheon, South Korea | 9 hours ahead of Harpenden | Surat, India | 5 hours 30 minutes ahead of Harpenden |
| Indianapolis, USA | 5 hours behind Harpenden | Suwon, South Korea | 9 hours ahead of Harpenden |
| Indore, India | 5 hours 30 minutes ahead of Harpenden | Sydney, Australia | 11 hours ahead of Harpenden |
| Ipoh, Malaysia | 8 hours ahead of Harpenden | Ta`izz, Yemen | 3 hours ahead of Harpenden |
| Iquitos, Peru | 5 hours behind Harpenden | Ta’if, Saudi Arabia | 3 hours ahead of Harpenden |
| Irkutsk, Russia | 8 hours ahead of Harpenden | Tabriz, Iran | 3 hours 30 minutes ahead of Harpenden |
| Isfahan, Iran | 3 hours 30 minutes ahead of Harpenden | Tabuk, Saudi Arabia | 3 hours ahead of Harpenden |
| Istanbul, Turkey | 3 hours ahead of Harpenden | Taichung, Taiwan | 8 hours ahead of Harpenden |
| Izhevsk, Russia | 4 hours ahead of Harpenden | Tainan City, Taiwan | 8 hours ahead of Harpenden |
| Izmir, Turkey | 3 hours ahead of Harpenden | Taipei, Taiwan | 8 hours ahead of Harpenden |
| Jacksonville, USA | 5 hours behind Harpenden | Tangerang, Indonesia | 7 hours ahead of Harpenden |
| Jaipur, India | 5 hours 30 minutes ahead of Harpenden | Tangier, Morocco | 1 hour ahead of Harpenden |
| Jakarta, Indonesia | 7 hours ahead of Harpenden | Tashkent, Uzbekistan | 5 hours ahead of Harpenden |
| Jeddah, Saudi Arabia | 3 hours ahead of Harpenden | Tbilisi, Georgia | 4 hours ahead of Harpenden |
| Jerusalem, Israel | 2 hours ahead of Harpenden | Tébessa, Algeria | 1 hour ahead of Harpenden |
| Johannesburg, South Africa | 2 hours ahead of Harpenden | Tegucigalpa, Honduras | 6 hours behind Harpenden |
| Johor Bahru, Malaysia | 8 hours ahead of Harpenden | Tehran, Iran | 3 hours 30 minutes ahead of Harpenden |
| Kabul, Afghanistan | 4 hours 30 minutes ahead of Harpenden | Tembisa, South Africa | 2 hours ahead of Harpenden |
| Kaduna, Nigeria | 1 hour ahead of Harpenden | The Hague, Netherlands | 1 hour ahead of Harpenden |
| Kampala, Uganda | 3 hours ahead of Harpenden | Tianjin, China | 8 hours ahead of Harpenden |
| Kananga, DR Congo | 2 hours ahead of Harpenden | Tijuana, Mexico | 8 hours behind Harpenden |
| Kano, Nigeria | 1 hour ahead of Harpenden | Tokyo, Japan | 9 hours ahead of Harpenden |
| Kanpur, India | 5 hours 30 minutes ahead of Harpenden | Tolyatti, Russia | 4 hours ahead of Harpenden |
| Kaohsiung City, Taiwan | 8 hours ahead of Harpenden | Toronto, Canada | 5 hours behind Harpenden |
| Karachi, Pakistan | 5 hours ahead of Harpenden | Touba, Senegal | the same time as Harpenden |
| Karagandy, Kazakhstan | 6 hours ahead of Harpenden | Toulouse, France | 1 hour ahead of Harpenden |
| Karaj, Iran | 3 hours 30 minutes ahead of Harpenden | Tripoli, Libya | 2 hours ahead of Harpenden |
| Karbala, Iraq | 3 hours ahead of Harpenden | Trujillo, Peru | 5 hours behind Harpenden |
| Kathmandu, Nepal | 5 hours 45 minutes ahead of Harpenden | Tunis, Tunisia | 1 hour ahead of Harpenden |
| Kawasaki, Japan | 9 hours ahead of Harpenden | Turin, Italy | 1 hour ahead of Harpenden |
| Kazan’, Russia | 3 hours ahead of Harpenden | Ufa, Russia | 5 hours ahead of Harpenden |
| Khabarovsk, Russia | 10 hours ahead of Harpenden | Ulan Bator, Mongolia | 8 hours ahead of Harpenden |
| Kharkiv, Ukraine | 2 hours ahead of Harpenden | Ulyanovsk, Russia | 4 hours ahead of Harpenden |
| Khartoum, Sudan | 2 hours ahead of Harpenden | Valencia, Spain | 1 hour ahead of Harpenden |
| Khulna, Bangladesh | 6 hours ahead of Harpenden | Valencia, Venezuela | 4 hours behind Harpenden |
| Kiev, Ukraine | 2 hours ahead of Harpenden | Vancouver, Canada | 8 hours behind Harpenden |
| Kigali, Rwanda | 2 hours ahead of Harpenden | Vienna, Austria | 1 hour ahead of Harpenden |
| Kingston, Jamaica | 5 hours behind Harpenden | Vilnius, Lithuania | 2 hours ahead of Harpenden |
| Kinshasa, DR Congo | 1 hour ahead of Harpenden | Vladivostok, Russia | 10 hours ahead of Harpenden |
| Kirkuk, Iraq | 3 hours ahead of Harpenden | Volgograd, Russia | 3 hours ahead of Harpenden |
| Kisangani, DR Congo | 2 hours ahead of Harpenden | Voronezh, Russia | 3 hours ahead of Harpenden |
| Klang, Malaysia | 8 hours ahead of Harpenden | Warsaw, Poland | 1 hour ahead of Harpenden |
| Kobe, Japan | 9 hours ahead of Harpenden | Washington D.C., USA | 5 hours behind Harpenden |
| Kolkata, India | 5 hours 30 minutes ahead of Harpenden | White House, Morocco | 1 hour ahead of Harpenden |
| Kolwezi, DR Congo | 2 hours ahead of Harpenden | Winnipeg, Canada | 6 hours behind Harpenden |
| Konya, Turkey | 3 hours ahead of Harpenden | Wrocław, Poland | 1 hour ahead of Harpenden |
| Kota Bharu, Malaysia | 8 hours ahead of Harpenden | Wuhan, China | 8 hours ahead of Harpenden |
| Kousséri, Cameroon | 1 hour ahead of Harpenden | Xi'an, China | 8 hours ahead of Harpenden |
| Kowloon, Hong Kong | 8 hours ahead of Harpenden | Yangon, Myanmar | 6 hours 30 minutes ahead of Harpenden |
| Krakow, Poland | 1 hour ahead of Harpenden | Yaoundé, Cameroon | 1 hour ahead of Harpenden |
| Krasnodar, Russia | 3 hours ahead of Harpenden | Yaroslavl, Russia | 3 hours ahead of Harpenden |
| Krasnoyarsk, Russia | 7 hours ahead of Harpenden | Yekaterinburg, Russia | 5 hours ahead of Harpenden |
| Kryvyi Rih, Ukraine | 2 hours ahead of Harpenden | Yerevan, Armenia | 4 hours ahead of Harpenden |
| Kuala Lumpur, Malaysia | 8 hours ahead of Harpenden | Yokohama, Japan | 9 hours ahead of Harpenden |
| Kuching, Malaysia | 8 hours ahead of Harpenden | Zagreb, Croatia | 1 hour ahead of Harpenden |
| Kumasi, Ghana | the same time as Harpenden | Zamboanga City, Philippines | 8 hours ahead of Harpenden |
| Kyoto, Japan | 9 hours ahead of Harpenden | Zapopan, Mexico | 6 hours behind Harpenden |
| La Paz, Bolivia | 4 hours behind Harpenden | Zaporizhia, Ukraine | 2 hours ahead of Harpenden |
| La Plata, Argentina | 3 hours behind Harpenden | Zaragoza, Spain | 1 hour ahead of Harpenden |
| Lagos, Nigeria | 1 hour ahead of Harpenden | Zarqa, Jordan | 3 hours ahead of Harpenden |