| Naperville Ciudad Juarez | Mountain Time | 01:00 |
| Naperville Manhattan | Eastern Time | -01:00 |
| Naperville Asuncion | Paraguay Time | -01:00 |
| Naperville Recife | Brasilia Time | -02:00 |
| Naperville Daejeon | Korean Time | -14:00 |
| Naperville San Antonio | Central Time | 00:00 |
| Naperville Kumasi | Greenwich Mean Time | -05:00 |
| Naperville Kota Bharu | Malaysia Time | -13:00 |
| Naperville Kyoto | Japan Time | -14:00 |
| Naperville Kuala Lumpur | Malaysia Time | -13:00 |
| Naperville Karaj | Iran Time | -09:30 |
| Naperville Kathmandu | Nepal Time | -10:45 |
| Naperville Palembang | Western Indonesia Time | -12:00 |
| Naperville Multan | Pakistan Time | -10:00 |
| Naperville Tirunelveli | India Standard Time | -10:30 |
| Naperville Hanoi | Indochina Time | -12:00 |
| Naperville Kharkiv | Eastern European Time | -08:00 |
| Naperville Agra | India Standard Time | -10:30 |
| Naperville Córdoba | Argentina Time | -02:00 |
| Naperville Tabriz | Iran Time | -09:30 |
| Naperville Novosibirsk | Novosibirsk Time | -12:00 |
| Naperville Gwangju | Korean Time | -14:00 |
| Naperville Bursa | Turkey Time | -08:00 |
| Naperville Vadodara | India Standard Time | -10:30 |
| Naperville Belém | Brasilia Time | -02:00 |
| Naperville Fushun | China Time | -13:00 |
| Naperville Quito | Ecuador Time | 00:00 |
| Naperville San Diego | Pacific Time | 02:00 |
| Naperville Fukuoka | Japan Time | -14:00 |
| Naperville Antananarivo | East Africa Time | -08:00 |
| Naperville Luoyang | China Time | -13:00 |
| Naperville Hyderabad | Pakistan Time | -10:00 |
| Naperville Borough of Bronx | Eastern Time | -01:00 |
| Naperville Valencia | Venezuela Time | -01:00 |
| Naperville Gujranwala | Pakistan Time | -10:00 |
| Naperville Barranquilla | Colombia Time | 00:00 |
| Naperville Guankou | China Time | -13:00 |
| Naperville Tijuana | Pacific Time | 02:00 |
| Naperville Lubumbashi | Central Africa Time | -07:00 |
| Naperville Porto Alegre | Brasilia Time | -02:00 |
| Naperville Tangerang | Western Indonesia Time | -12:00 |
| Naperville Santa Cruz | Bolivia Time | -01:00 |
| Naperville Handan | China Time | -13:00 |
| Naperville Kampala | East Africa Time | -08:00 |
| Naperville Yekaterinburg | Yekaterinburg Time | -10:00 |
| Naperville Khulna | Bangladesh Time | -11:00 |
| Naperville Douala | West Africa Time | -06:00 |
| Naperville Gorakhpur | India Standard Time | -10:30 |
| Naperville Mecca | Arabian Time | -08:00 |
| Naperville Makassar | Central Indonesia Time | -13:00 |