Deutsch
Español
Français
Italiano
Polski
Português
Русский
УкраїнськаTime difference between Naperville, Illinois, USA and other cities
Naperville time zone: UTC-05:00 or CDTFind out the time difference between and Naperville,
or see the time difference between Naperville and other cities in the table below.
| City and country | Time difference | City and country | Time difference |
|---|---|---|---|
| Abidjan, Cote d'Ivoire | 5 hours ahead of Naperville | Lahore, Pakistan | 10 hours ahead of Naperville |
| Abu Dhabi, United Arab Emirates | 9 hours ahead of Naperville | Leeds, United Kingdom | 6 hours ahead of Naperville |
| Abu Ghraib, Iraq | 8 hours ahead of Naperville | Leipzig, Germany | 7 hours ahead of Naperville |
| Accra, Ghana | 5 hours ahead of Naperville | León, Mexico | 1 hour behind Naperville |
| Adana, Turkey | 8 hours ahead of Naperville | Libreville, Gabon | 6 hours ahead of Naperville |
| Addis Ababa, Ethiopia | 8 hours ahead of Naperville | Likasi, DR Congo | 7 hours ahead of Naperville |
| Adelaide, Australia | 15 hours 30 minutes ahead of Naperville | Lilongwe, Malawi | 7 hours ahead of Naperville |
| Aden, Yemen | 8 hours ahead of Naperville | Lima, Peru | the same time as Naperville |
| Agadir, Morocco | 5 hours ahead of Naperville | Lisbon, Portugal | 6 hours ahead of Naperville |
| Ahmedabad, India | 10 hours 30 minutes ahead of Naperville | Liverpool, United Kingdom | 6 hours ahead of Naperville |
| Ahvāz, Iran | 8 hours 30 minutes ahead of Naperville | Lomé, Togo | 5 hours ahead of Naperville |
| Al Hudaydah, Yemen | 8 hours ahead of Naperville | London, United Kingdom | 6 hours ahead of Naperville |
| Aleppo, Syria | 8 hours ahead of Naperville | Los Angeles, USA | 2 hours behind Naperville |
| Alexandria, Egypt | 7 hours ahead of Naperville | Luanda, Angola | 6 hours ahead of Naperville |
| Algiers, Algeria | 6 hours ahead of Naperville | Lubumbashi, DR Congo | 7 hours ahead of Naperville |
| Almaty, Kazakhstan | 11 hours ahead of Naperville | Lucknow, India | 10 hours 30 minutes ahead of Naperville |
| Amman, Jordan | 8 hours ahead of Naperville | Luhansk, Ukraine | 8 hours ahead of Naperville |
| Amsterdam, Netherlands | 7 hours ahead of Naperville | Lusaka, Zambia | 7 hours ahead of Naperville |
| Ankara, Turkey | 8 hours ahead of Naperville | Luxor, Egypt | 7 hours ahead of Naperville |
| Antalya, Turkey | 8 hours ahead of Naperville | Lviv, Ukraine | 8 hours ahead of Naperville |
| Antananarivo, Madagascar | 8 hours ahead of Naperville | Lyon, France | 7 hours ahead of Naperville |
| Antwerp, Belgium | 7 hours ahead of Naperville | Łódź, Poland | 7 hours ahead of Naperville |
| Arequipa, Peru | the same time as Naperville | Macao, Macau | 13 hours ahead of Naperville |
| Ashgabat, Turkmenistan | 10 hours ahead of Naperville | Madrid, Spain | 7 hours ahead of Naperville |
| Asmara, Eritrea | 8 hours ahead of Naperville | Makassar, Indonesia | 13 hours ahead of Naperville |
| Asunción, Paraguay | 1 hour ahead of Naperville | Málaga, Spain | 7 hours ahead of Naperville |
| Asyut, Egypt | 7 hours ahead of Naperville | Managua, Nicaragua | 1 hour behind Naperville |
| Athens, Greece | 8 hours ahead of Naperville | Manaus, Brazil | 1 hour ahead of Naperville |
| Auckland, New Zealand | 18 hours ahead of Naperville | Mandalay, Myanmar | 11 hours 30 minutes ahead of Naperville |
| Austin, USA | the same time as Naperville | Manila, Philippines | 13 hours ahead of Naperville |
| Bacolod City, Philippines | 13 hours ahead of Naperville | Mansoura, Egypt | 7 hours ahead of Naperville |
| Baghdad, Iraq | 8 hours ahead of Naperville | Maputo, Mozambique | 7 hours ahead of Naperville |
| Baku, Azerbaijan | 9 hours ahead of Naperville | Mar del Plata, Argentina | 2 hours ahead of Naperville |
| Baltimore, USA | 1 hour ahead of Naperville | Maracaibo, Venezuela | 1 hour ahead of Naperville |
| Bamako, Mali | 5 hours ahead of Naperville | Maracay, Venezuela | 1 hour ahead of Naperville |
| Bandung, Indonesia | 12 hours ahead of Naperville | Mariupol, Ukraine | 8 hours ahead of Naperville |
| Bangkok, Thailand | 12 hours ahead of Naperville | Marrakesh, Morocco | 5 hours ahead of Naperville |
| Bangui, Central African Republic | 6 hours ahead of Naperville | Marseille, France | 7 hours ahead of Naperville |
| Barcelona, Venezuela | 1 hour ahead of Naperville | Mashhad, Iran | 8 hours 30 minutes ahead of Naperville |
| Barcelona, Spain | 7 hours ahead of Naperville | Matola, Mozambique | 7 hours ahead of Naperville |
| Barnaul, Russia | 12 hours ahead of Naperville | Maturín, Venezuela | 1 hour ahead of Naperville |
| Barquisimeto, Venezuela | 1 hour ahead of Naperville | Mawlamyine, Myanmar | 11 hours 30 minutes ahead of Naperville |
| Barranquilla, Colombia | the same time as Naperville | Mbuji-Mayi, DR Congo | 7 hours ahead of Naperville |
| Basrah, Iraq | 8 hours ahead of Naperville | Mecca, Saudi Arabia | 8 hours ahead of Naperville |
| Beijing, China | 13 hours ahead of Naperville | Medan, Indonesia | 12 hours ahead of Naperville |
| Beira, Mozambique | 7 hours ahead of Naperville | Medellín, Colombia | the same time as Naperville |
| Beirut, Lebanon | 8 hours ahead of Naperville | Medina, Saudi Arabia | 8 hours ahead of Naperville |
| Bekasi, Indonesia | 12 hours ahead of Naperville | Meknes, Morocco | 5 hours ahead of Naperville |
| Belém, Brazil | 2 hours ahead of Naperville | Melbourne, Australia | 16 hours ahead of Naperville |
| Belgrade, Serbia | 7 hours ahead of Naperville | Memphis, USA | the same time as Naperville |
| Belo Horizonte, Brazil | 2 hours ahead of Naperville | Mendoza, Argentina | 2 hours ahead of Naperville |
| Bengaluru, India | 10 hours 30 minutes ahead of Naperville | Mexico City, Mexico | 1 hour behind Naperville |
| Benghazi, Libya | 7 hours ahead of Naperville | Milan, Italy | 7 hours ahead of Naperville |
| Benin City, Nigeria | 6 hours ahead of Naperville | Minsk, Belarus | 8 hours ahead of Naperville |
| Benoni, South Africa | 7 hours ahead of Naperville | Mississauga, Canada | 1 hour ahead of Naperville |
| Berlin, Germany | 7 hours ahead of Naperville | Mogadishu, Somalia | 8 hours ahead of Naperville |
| Birmingham, United Kingdom | 6 hours ahead of Naperville | Mombasa, Kenya | 8 hours ahead of Naperville |
| Bishkek, Kyrgyzstan | 11 hours ahead of Naperville | Monrovia, Liberia | 5 hours ahead of Naperville |
| Blantyre, Malawi | 7 hours ahead of Naperville | Monterrey, Mexico | 1 hour behind Naperville |
| Bogotá, Colombia | the same time as Naperville | Montevideo, Uruguay | 2 hours ahead of Naperville |
| Boston, USA | 1 hour ahead of Naperville | Montreal, Canada | 1 hour ahead of Naperville |
| Bouaké, Cote d'Ivoire | 5 hours ahead of Naperville | Moscow, Russia | 8 hours ahead of Naperville |
| Boumerdas, Algeria | 6 hours ahead of Naperville | Mosul, Iraq | 8 hours ahead of Naperville |
| Brampton, Canada | 1 hour ahead of Naperville | Multan, Pakistan | 10 hours ahead of Naperville |
| Brasília, Brazil | 2 hours ahead of Naperville | Mumbai, India | 10 hours 30 minutes ahead of Naperville |
| Bratislava, Slovakia | 7 hours ahead of Naperville | Munich, Germany | 7 hours ahead of Naperville |
| Brazzaville, Congo | 6 hours ahead of Naperville | Murcia, Spain | 7 hours ahead of Naperville |
| Bremen, Germany | 7 hours ahead of Naperville | Muscat, Oman | 9 hours ahead of Naperville |
| Brisbane, Australia | 15 hours ahead of Naperville | Muzaffarabad, Pakistan | 10 hours ahead of Naperville |
| Bristol, United Kingdom | 6 hours ahead of Naperville | Mwanza, Tanzania | 8 hours ahead of Naperville |
| Brussels, Belgium | 7 hours ahead of Naperville | Mykolayiv, Ukraine | 8 hours ahead of Naperville |
| Bucaramanga, Colombia | the same time as Naperville | N'Djamena, Chad | 6 hours ahead of Naperville |
| Bucharest, Romania | 8 hours ahead of Naperville | Nagoya, Japan | 14 hours ahead of Naperville |
| Budapest, Hungary | 7 hours ahead of Naperville | Nagpur, India | 10 hours 30 minutes ahead of Naperville |
| Buenos Aires, Argentina | 2 hours ahead of Naperville | Nairobi, Kenya | 8 hours ahead of Naperville |
| Bulawayo, Zimbabwe | 7 hours ahead of Naperville | Najaf, Iraq | 8 hours ahead of Naperville |
| Bursa, Turkey | 8 hours ahead of Naperville | Namangan, Uzbekistan | 10 hours ahead of Naperville |
| Busan, South Korea | 14 hours ahead of Naperville | Namp'o, North Korea | 14 hours ahead of Naperville |
| Cairo, Egypt | 7 hours ahead of Naperville | Nanchong, China | 13 hours ahead of Naperville |
| Calgary, Canada | 1 hour behind Naperville | Nanjing, China | 13 hours ahead of Naperville |
| Callao, Peru | the same time as Naperville | Naples, Italy | 7 hours ahead of Naperville |
| Cape Town, South Africa | 7 hours ahead of Naperville | Naypyitaw, Myanmar | 11 hours 30 minutes ahead of Naperville |
| Caracas, Venezuela | 1 hour ahead of Naperville | New York, USA | 1 hour ahead of Naperville |
| Cartagena, Colombia | the same time as Naperville | Niamey, Niger | 6 hours ahead of Naperville |
| Cebu City, Philippines | 13 hours ahead of Naperville | Nizhny Novgorod, Russia | 8 hours ahead of Naperville |
| Charlotte, USA | 1 hour ahead of Naperville | Nouakchott, Mauritania | 5 hours ahead of Naperville |
| Chelyabinsk, Russia | 10 hours ahead of Naperville | Novosibirsk, Russia | 12 hours ahead of Naperville |
| Chengdu, China | 13 hours ahead of Naperville | Nuremberg, Germany | 7 hours ahead of Naperville |
| Chennai, India | 10 hours 30 minutes ahead of Naperville | Odesa, Ukraine | 8 hours ahead of Naperville |
| Chicago, USA | the same time as Naperville | Omdurman, Sudan | 7 hours ahead of Naperville |
| Chiclayo, Peru | the same time as Naperville | Omsk, Russia | 11 hours ahead of Naperville |
| Chişinău, Moldova | 8 hours ahead of Naperville | Oran, Algeria | 6 hours ahead of Naperville |
| Chittagong, Bangladesh | 11 hours ahead of Naperville | Osaka, Japan | 14 hours ahead of Naperville |
| Chongqing, China | 13 hours ahead of Naperville | Oslo, Norway | 7 hours ahead of Naperville |
| City of Taguig, Philippines | 13 hours ahead of Naperville | Ottawa, Canada | 1 hour ahead of Naperville |
| Ciudad Guayana, Venezuela | 1 hour ahead of Naperville | Ouagadougou, Burkina Faso | 5 hours ahead of Naperville |
| Ciudad Juárez, Mexico | the same time as Naperville | Palembang, Indonesia | 12 hours ahead of Naperville |
| Ciudad Nezahualcoyotl, Mexico | 1 hour behind Naperville | Palermo, Italy | 7 hours ahead of Naperville |
| Cochabamba, Bolivia | 1 hour ahead of Naperville | Paris, France | 7 hours ahead of Naperville |
| Cologne, Germany | 7 hours ahead of Naperville | Patna, India | 10 hours 30 minutes ahead of Naperville |
| Colombo, Sri Lanka | 10 hours 30 minutes ahead of Naperville | Pereira, Colombia | the same time as Naperville |
| Columbus, USA | 1 hour ahead of Naperville | Perm, Russia | 10 hours ahead of Naperville |
| Conakry, Guinea | 5 hours ahead of Naperville | Perth, Australia | 13 hours ahead of Naperville |
| Constantine, Algeria | 6 hours ahead of Naperville | Peshawar, Pakistan | 10 hours ahead of Naperville |
| Copenhagen, Denmark | 7 hours ahead of Naperville | Petaling Jaya, Malaysia | 13 hours ahead of Naperville |
| Córdoba, Argentina | 2 hours ahead of Naperville | Philadelphia, USA | 1 hour ahead of Naperville |
| Cotonou, Benin | 6 hours ahead of Naperville | Phnom Penh, Cambodia | 12 hours ahead of Naperville |
| Cúcuta, Colombia | the same time as Naperville | Phoenix, USA | 2 hours behind Naperville |
| Curitiba, Brazil | 2 hours ahead of Naperville | Pietermaritzburg, South Africa | 7 hours ahead of Naperville |
| Da Nang, Vietnam | 12 hours ahead of Naperville | Pikine, Senegal | 5 hours ahead of Naperville |
| Daegu, South Korea | 14 hours ahead of Naperville | Pointe-Noire, Congo | 6 hours ahead of Naperville |
| Daejeon, South Korea | 14 hours ahead of Naperville | Port Elizabeth, South Africa | 7 hours ahead of Naperville |
| Dakar, Senegal | 5 hours ahead of Naperville | Port Harcourt, Nigeria | 6 hours ahead of Naperville |
| Dallas, USA | the same time as Naperville | Port Said, Egypt | 7 hours ahead of Naperville |
| Damascus, Syria | 8 hours ahead of Naperville | Port Sudan, Sudan | 7 hours ahead of Naperville |
| Dammam, Saudi Arabia | 8 hours ahead of Naperville | Port-au-Prince, Haiti | 1 hour ahead of Naperville |
| Dar es Salaam, Tanzania | 8 hours ahead of Naperville | Porto Alegre, Brazil | 2 hours ahead of Naperville |
| Davao City, Philippines | 13 hours ahead of Naperville | Poznań, Poland | 7 hours ahead of Naperville |
| Delhi, India | 10 hours 30 minutes ahead of Naperville | Prague, Czech Republic | 7 hours ahead of Naperville |
| Denver, USA | 1 hour behind Naperville | Pretoria, South Africa | 7 hours ahead of Naperville |
| Detroit, USA | 1 hour ahead of Naperville | Pristina, Kosovo | 7 hours ahead of Naperville |
| Dhaka, Bangladesh | 11 hours ahead of Naperville | Puebla City, Mexico | 1 hour behind Naperville |
| Djibouti, Djibouti | 8 hours ahead of Naperville | Puente Alto, Chile | 2 hours ahead of Naperville |
| Dnipro, Ukraine | 8 hours ahead of Naperville | Pune, India | 10 hours 30 minutes ahead of Naperville |
| Donetsk, Ukraine | 8 hours ahead of Naperville | Pyongyang, North Korea | 14 hours ahead of Naperville |
| Dongguan, China | 13 hours ahead of Naperville | Qom, Iran | 8 hours 30 minutes ahead of Naperville |
| Dortmund, Germany | 7 hours ahead of Naperville | Québec, Canada | 1 hour ahead of Naperville |
| Douala, Cameroon | 6 hours ahead of Naperville | Quetta, Pakistan | 10 hours ahead of Naperville |
| Dresden, Germany | 7 hours ahead of Naperville | Quezon City, Philippines | 13 hours ahead of Naperville |
| Dubai, United Arab Emirates | 9 hours ahead of Naperville | Quilmes, Argentina | 2 hours ahead of Naperville |
| Dublin, Ireland | 6 hours ahead of Naperville | Quito, Ecuador | the same time as Naperville |
| Duisburg, Germany | 7 hours ahead of Naperville | Rabat, Morocco | 5 hours ahead of Naperville |
| Durban, South Africa | 7 hours ahead of Naperville | Rajshahi, Bangladesh | 11 hours ahead of Naperville |
| Dushanbe, Tajikistan | 10 hours ahead of Naperville | Rawalpindi, Pakistan | 10 hours ahead of Naperville |
| Dusseldorf, Germany | 7 hours ahead of Naperville | Recife, Brazil | 2 hours ahead of Naperville |
| Ecatepec de Morelos, Mexico | 1 hour behind Naperville | Riga, Latvia | 8 hours ahead of Naperville |
| Edinburgh, United Kingdom | 6 hours ahead of Naperville | Rio de Janeiro, Brazil | 2 hours ahead of Naperville |
| Edmonton, Canada | 1 hour behind Naperville | Riyadh, Saudi Arabia | 8 hours ahead of Naperville |
| El Mahalla El Kubra, Egypt | 7 hours ahead of Naperville | Rome, Italy | 7 hours ahead of Naperville |
| El Paso, USA | 1 hour behind Naperville | Rosario, Argentina | 2 hours ahead of Naperville |
| Erbil, Iraq | 8 hours ahead of Naperville | Rostov-on-Don, Russia | 8 hours ahead of Naperville |
| Essen, Germany | 7 hours ahead of Naperville | Rotterdam, Netherlands | 7 hours ahead of Naperville |
| Faisalabad, Pakistan | 10 hours ahead of Naperville | Saint Petersburg, Russia | 8 hours ahead of Naperville |
| Fes, Morocco | 5 hours ahead of Naperville | Saitama, Japan | 14 hours ahead of Naperville |
| Fort Worth, USA | the same time as Naperville | Salé, Morocco | 5 hours ahead of Naperville |
| Fortaleza, Brazil | 2 hours ahead of Naperville | Salta, Argentina | 2 hours ahead of Naperville |
| Frankfurt am Main, Germany | 7 hours ahead of Naperville | Salvador, Brazil | 2 hours ahead of Naperville |
| Freetown, Sierra Leone | 5 hours ahead of Naperville | Samara, Russia | 9 hours ahead of Naperville |
| Fukuoka, Japan | 14 hours ahead of Naperville | San Antonio, USA | the same time as Naperville |
| Garoua, Cameroon | 6 hours ahead of Naperville | San Diego, USA | 2 hours behind Naperville |
| Gaza, Palestinian Territories | 8 hours ahead of Naperville | San Francisco, USA | 2 hours behind Naperville |
| Gaziantep, Turkey | 8 hours ahead of Naperville | San Jose, USA | 2 hours behind Naperville |
| Gdańsk, Poland | 7 hours ahead of Naperville | San Juan, Puerto Rico | 1 hour ahead of Naperville |
| General Santos, Philippines | 13 hours ahead of Naperville | San Miguel de Tucumán, Argentina | 2 hours ahead of Naperville |
| Genoa, Italy | 7 hours ahead of Naperville | San Pedro Sula, Honduras | 1 hour behind Naperville |
| Giza, Egypt | 7 hours ahead of Naperville | San Salvador, El Salvador | 1 hour behind Naperville |
| Glasgow, United Kingdom | 6 hours ahead of Naperville | Sanaa, Yemen | 8 hours ahead of Naperville |
| Goiânia, Brazil | 2 hours ahead of Naperville | Santa Cruz de la Sierra, Bolivia | 1 hour ahead of Naperville |
| Gold Coast, Australia | 15 hours ahead of Naperville | Santa Fe, Argentina | 2 hours ahead of Naperville |
| Gomel, Belarus | 8 hours ahead of Naperville | Santa Marta, Colombia | the same time as Naperville |
| Gothenburg, Sweden | 7 hours ahead of Naperville | Santiago, Chile | 2 hours ahead of Naperville |
| Goyang, South Korea | 14 hours ahead of Naperville | Santiago de Cali, Colombia | the same time as Naperville |
| Guadalajara, Mexico | 1 hour behind Naperville | Santiago de Cuba, Cuba | 1 hour ahead of Naperville |
| Guangzhou, China | 13 hours ahead of Naperville | Santiago de los Caballeros, Dominican Republic | 1 hour ahead of Naperville |
| Guatemala City, Guatemala | 1 hour behind Naperville | Santo Domingo, Dominican Republic | 1 hour ahead of Naperville |
| Guayaquil, Ecuador | the same time as Naperville | São Paulo, Brazil | 2 hours ahead of Naperville |
| Gujranwala, Pakistan | 10 hours ahead of Naperville | Sapporo, Japan | 14 hours ahead of Naperville |
| Gwangju, South Korea | 14 hours ahead of Naperville | Sarajevo, Bosnia and Herzegovina | 7 hours ahead of Naperville |
| Haiphong, Vietnam | 12 hours ahead of Naperville | Saratov, Russia | 9 hours ahead of Naperville |
| Hama, Syria | 8 hours ahead of Naperville | Seattle, USA | 2 hours behind Naperville |
| Hamburg, Germany | 7 hours ahead of Naperville | Sendai, Japan | 14 hours ahead of Naperville |
| Hamhung, North Korea | 14 hours ahead of Naperville | Seoul, South Korea | 14 hours ahead of Naperville |
| Hamilton, Canada | 1 hour ahead of Naperville | Sevastopol, Ukraine | 8 hours ahead of Naperville |
| Hangzhou, China | 13 hours ahead of Naperville | Seville, Spain | 7 hours ahead of Naperville |
| Hanoi, Vietnam | 12 hours ahead of Naperville | Shah Alam, Malaysia | 13 hours ahead of Naperville |
| Hanover, Germany | 7 hours ahead of Naperville | Shanghai, China | 13 hours ahead of Naperville |
| Harare, Zimbabwe | 7 hours ahead of Naperville | Sharjah, United Arab Emirates | 9 hours ahead of Naperville |
| Harbin, China | 13 hours ahead of Naperville | Sheffield, United Kingdom | 6 hours ahead of Naperville |
| Hargeysa, Somalia | 8 hours ahead of Naperville | Shenyang, China | 13 hours ahead of Naperville |
| Havana, Cuba | 1 hour ahead of Naperville | Shenzhen, China | 13 hours ahead of Naperville |
| Helsinki, Finland | 8 hours ahead of Naperville | Shiraz, Iran | 8 hours 30 minutes ahead of Naperville |
| Hiroshima, Japan | 14 hours ahead of Naperville | Shymkent, Kazakhstan | 11 hours ahead of Naperville |
| Ho Chi Minh City, Vietnam | 12 hours ahead of Naperville | Singapore, Singapore | 13 hours ahead of Naperville |
| Homs, Syria | 8 hours ahead of Naperville | Skopje, North Macedonia | 7 hours ahead of Naperville |
| Hong Kong, Hong Kong | 13 hours ahead of Naperville | Sofia, Bulgaria | 8 hours ahead of Naperville |
| Houston, USA | the same time as Naperville | Stockholm, Sweden | 7 hours ahead of Naperville |
| Hyderabad, India | 10 hours 30 minutes ahead of Naperville | Stuttgart, Germany | 7 hours ahead of Naperville |
| Hyderābād, Pakistan | 10 hours ahead of Naperville | Suez, Egypt | 7 hours ahead of Naperville |
| Ibadan, Nigeria | 6 hours ahead of Naperville | Sulaymaniyah, Iraq | 8 hours ahead of Naperville |
| Ibague, Colombia | the same time as Naperville | Surabaya, Indonesia | 12 hours ahead of Naperville |
| Incheon, South Korea | 14 hours ahead of Naperville | Surat, India | 10 hours 30 minutes ahead of Naperville |
| Indianapolis, USA | 1 hour ahead of Naperville | Suwon, South Korea | 14 hours ahead of Naperville |
| Indore, India | 10 hours 30 minutes ahead of Naperville | Sydney, Australia | 16 hours ahead of Naperville |
| Ipoh, Malaysia | 13 hours ahead of Naperville | Ta`izz, Yemen | 8 hours ahead of Naperville |
| Iquitos, Peru | the same time as Naperville | Ta’if, Saudi Arabia | 8 hours ahead of Naperville |
| Irkutsk, Russia | 13 hours ahead of Naperville | Tabriz, Iran | 8 hours 30 minutes ahead of Naperville |
| Isfahan, Iran | 8 hours 30 minutes ahead of Naperville | Tabuk, Saudi Arabia | 8 hours ahead of Naperville |
| Istanbul, Turkey | 8 hours ahead of Naperville | Taichung, Taiwan | 13 hours ahead of Naperville |
| Izhevsk, Russia | 9 hours ahead of Naperville | Tainan City, Taiwan | 13 hours ahead of Naperville |
| Izmir, Turkey | 8 hours ahead of Naperville | Taipei, Taiwan | 13 hours ahead of Naperville |
| Jacksonville, USA | 1 hour ahead of Naperville | Tangerang, Indonesia | 12 hours ahead of Naperville |
| Jaipur, India | 10 hours 30 minutes ahead of Naperville | Tangier, Morocco | 5 hours ahead of Naperville |
| Jakarta, Indonesia | 12 hours ahead of Naperville | Tashkent, Uzbekistan | 10 hours ahead of Naperville |
| Jeddah, Saudi Arabia | 8 hours ahead of Naperville | Tbilisi, Georgia | 9 hours ahead of Naperville |
| Jerusalem, Israel | 8 hours ahead of Naperville | Tébessa, Algeria | 6 hours ahead of Naperville |
| Johannesburg, South Africa | 7 hours ahead of Naperville | Tegucigalpa, Honduras | 1 hour behind Naperville |
| Johor Bahru, Malaysia | 13 hours ahead of Naperville | Tehran, Iran | 8 hours 30 minutes ahead of Naperville |
| Kabul, Afghanistan | 9 hours 30 minutes ahead of Naperville | Tembisa, South Africa | 7 hours ahead of Naperville |
| Kaduna, Nigeria | 6 hours ahead of Naperville | The Hague, Netherlands | 7 hours ahead of Naperville |
| Kampala, Uganda | 8 hours ahead of Naperville | Tianjin, China | 13 hours ahead of Naperville |
| Kananga, DR Congo | 7 hours ahead of Naperville | Tijuana, Mexico | 2 hours behind Naperville |
| Kano, Nigeria | 6 hours ahead of Naperville | Tokyo, Japan | 14 hours ahead of Naperville |
| Kanpur, India | 10 hours 30 minutes ahead of Naperville | Tolyatti, Russia | 9 hours ahead of Naperville |
| Kaohsiung City, Taiwan | 13 hours ahead of Naperville | Toronto, Canada | 1 hour ahead of Naperville |
| Karachi, Pakistan | 10 hours ahead of Naperville | Touba, Senegal | 5 hours ahead of Naperville |
| Karagandy, Kazakhstan | 11 hours ahead of Naperville | Toulouse, France | 7 hours ahead of Naperville |
| Karaj, Iran | 8 hours 30 minutes ahead of Naperville | Tripoli, Libya | 7 hours ahead of Naperville |
| Karbala, Iraq | 8 hours ahead of Naperville | Trujillo, Peru | the same time as Naperville |
| Kathmandu, Nepal | 10 hours 45 minutes ahead of Naperville | Tunis, Tunisia | 6 hours ahead of Naperville |
| Kawasaki, Japan | 14 hours ahead of Naperville | Turin, Italy | 7 hours ahead of Naperville |
| Kazan’, Russia | 8 hours ahead of Naperville | Ufa, Russia | 10 hours ahead of Naperville |
| Khabarovsk, Russia | 15 hours ahead of Naperville | Ulan Bator, Mongolia | 13 hours ahead of Naperville |
| Kharkiv, Ukraine | 8 hours ahead of Naperville | Ulyanovsk, Russia | 9 hours ahead of Naperville |
| Khartoum, Sudan | 7 hours ahead of Naperville | Valencia, Spain | 7 hours ahead of Naperville |
| Khulna, Bangladesh | 11 hours ahead of Naperville | Valencia, Venezuela | 1 hour ahead of Naperville |
| Kiev, Ukraine | 8 hours ahead of Naperville | Vancouver, Canada | 2 hours behind Naperville |
| Kigali, Rwanda | 7 hours ahead of Naperville | Vienna, Austria | 7 hours ahead of Naperville |
| Kingston, Jamaica | the same time as Naperville | Vilnius, Lithuania | 8 hours ahead of Naperville |
| Kinshasa, DR Congo | 6 hours ahead of Naperville | Vladivostok, Russia | 15 hours ahead of Naperville |
| Kirkuk, Iraq | 8 hours ahead of Naperville | Volgograd, Russia | 8 hours ahead of Naperville |
| Kisangani, DR Congo | 7 hours ahead of Naperville | Voronezh, Russia | 8 hours ahead of Naperville |
| Klang, Malaysia | 13 hours ahead of Naperville | Warsaw, Poland | 7 hours ahead of Naperville |
| Kobe, Japan | 14 hours ahead of Naperville | Washington D.C., USA | 1 hour ahead of Naperville |
| Kolkata, India | 10 hours 30 minutes ahead of Naperville | White House, Morocco | 5 hours ahead of Naperville |
| Kolwezi, DR Congo | 7 hours ahead of Naperville | Winnipeg, Canada | the same time as Naperville |
| Konya, Turkey | 8 hours ahead of Naperville | Wrocław, Poland | 7 hours ahead of Naperville |
| Kota Bharu, Malaysia | 13 hours ahead of Naperville | Wuhan, China | 13 hours ahead of Naperville |
| Kousséri, Cameroon | 6 hours ahead of Naperville | Xi'an, China | 13 hours ahead of Naperville |
| Kowloon, Hong Kong | 13 hours ahead of Naperville | Yangon, Myanmar | 11 hours 30 minutes ahead of Naperville |
| Krakow, Poland | 7 hours ahead of Naperville | Yaoundé, Cameroon | 6 hours ahead of Naperville |
| Krasnodar, Russia | 8 hours ahead of Naperville | Yaroslavl, Russia | 8 hours ahead of Naperville |
| Krasnoyarsk, Russia | 12 hours ahead of Naperville | Yekaterinburg, Russia | 10 hours ahead of Naperville |
| Kryvyi Rih, Ukraine | 8 hours ahead of Naperville | Yerevan, Armenia | 9 hours ahead of Naperville |
| Kuala Lumpur, Malaysia | 13 hours ahead of Naperville | Yokohama, Japan | 14 hours ahead of Naperville |
| Kuching, Malaysia | 13 hours ahead of Naperville | Zagreb, Croatia | 7 hours ahead of Naperville |
| Kumasi, Ghana | 5 hours ahead of Naperville | Zamboanga City, Philippines | 13 hours ahead of Naperville |
| Kyoto, Japan | 14 hours ahead of Naperville | Zapopan, Mexico | 1 hour behind Naperville |
| La Paz, Bolivia | 1 hour ahead of Naperville | Zaporizhia, Ukraine | 8 hours ahead of Naperville |
| La Plata, Argentina | 2 hours ahead of Naperville | Zaragoza, Spain | 7 hours ahead of Naperville |
| Lagos, Nigeria | 6 hours ahead of Naperville | Zarqa, Jordan | 8 hours ahead of Naperville |