| Cheonan-si Ciudad Juarez | Mountain Time | 16:00 |
| Cheonan-si Manhattan | Eastern Time | 14:00 |
| Cheonan-si Asuncion | Paraguay Time | 12:00 |
| Cheonan-si Recife | Brasilia Time | 12:00 |
| Cheonan-si Daejeon | Korean Time | 00:00 |
| Cheonan-si San Antonio | Central Time | 15:00 |
| Cheonan-si Kumasi | Greenwich Mean Time | 09:00 |
| Cheonan-si Kota Bharu | Malaysia Time | 01:00 |
| Cheonan-si Kyoto | Japan Time | 00:00 |
| Cheonan-si Kuala Lumpur | Malaysia Time | 01:00 |
| Cheonan-si Karaj | Iran Time | 05:30 |
| Cheonan-si Kathmandu | Nepal Time | 03:15 |
| Cheonan-si Palembang | Western Indonesia Time | 02:00 |
| Cheonan-si Multan | Pakistan Time | 04:00 |
| Cheonan-si Tirunelveli | India Standard Time | 03:30 |
| Cheonan-si Hanoi | Indochina Time | 02:00 |
| Cheonan-si Kharkiv | Eastern European Time | 07:00 |
| Cheonan-si Agra | India Standard Time | 03:30 |
| Cheonan-si Córdoba | Argentina Time | 12:00 |
| Cheonan-si Tabriz | Iran Time | 05:30 |
| Cheonan-si Novosibirsk | Novosibirsk Time | 02:00 |
| Cheonan-si Gwangju | Korean Time | 00:00 |
| Cheonan-si Bursa | Turkey Time | 06:00 |
| Cheonan-si Vadodara | India Standard Time | 03:30 |
| Cheonan-si Belém | Brasilia Time | 12:00 |
| Cheonan-si Fushun | China Time | 01:00 |
| Cheonan-si Quito | Ecuador Time | 14:00 |
| Cheonan-si San Diego | Pacific Time | 17:00 |
| Cheonan-si Fukuoka | Japan Time | 00:00 |
| Cheonan-si Antananarivo | East Africa Time | 06:00 |
| Cheonan-si Luoyang | China Time | 01:00 |
| Cheonan-si Hyderabad | Pakistan Time | 04:00 |
| Cheonan-si Borough of Bronx | Eastern Time | 14:00 |
| Cheonan-si Valencia | Venezuela Time | 13:00 |
| Cheonan-si Gujranwala | Pakistan Time | 04:00 |
| Cheonan-si Barranquilla | Colombia Time | 14:00 |
| Cheonan-si Guankou | China Time | 01:00 |
| Cheonan-si Tijuana | Pacific Time | 17:00 |
| Cheonan-si Lubumbashi | Central Africa Time | 07:00 |
| Cheonan-si Porto Alegre | Brasilia Time | 12:00 |
| Cheonan-si Tangerang | Western Indonesia Time | 02:00 |
| Cheonan-si Santa Cruz | Bolivia Time | 13:00 |
| Cheonan-si Handan | China Time | 01:00 |
| Cheonan-si Kampala | East Africa Time | 06:00 |
| Cheonan-si Yekaterinburg | Yekaterinburg Time | 04:00 |
| Cheonan-si Khulna | Bangladesh Time | 03:00 |
| Cheonan-si Douala | West Africa Time | 08:00 |
| Cheonan-si Gorakhpur | India Standard Time | 03:30 |
| Cheonan-si Mecca | Arabian Time | 06:00 |
| Cheonan-si Makassar | Central Indonesia Time | 01:00 |