| Cheonan-si Muzaffarabad | Pakistan Time | 04:00 |
| Cheonan-si Guadalupe | Central Time | 14:00 |
| Cheonan-si Bağcılar | Turkey Time | 06:00 |
| Cheonan-si Sulaymaniyah | Arabian Time | 06:00 |
| Cheonan-si Cúcuta | Colombia Time | 14:00 |
| Cheonan-si Moradabad | India Standard Time | 03:30 |
| Cheonan-si N'Djamena | West Africa Time | 08:00 |
| Cheonan-si Langfang | China Time | 01:00 |
| Cheonan-si Zhumadian | China Time | 01:00 |
| Cheonan-si Yantai | China Time | 01:00 |
| Cheonan-si Lviv | Eastern European Time | 06:00 |
| Cheonan-si Merida | Central Time | 14:00 |
| Cheonan-si Tlalnepantla | Central Time | 14:00 |
| Cheonan-si Edmonton | Mountain Time | 15:00 |
| Cheonan-si Jeonju-si | Korean Time | 00:00 |
| Cheonan-si Zhuzhou | China Time | 01:00 |
| Cheonan-si Subang Jaya | Malaysia Time | 01:00 |
| Cheonan-si Bhiwandi | India Standard Time | 03:30 |
| Cheonan-si Pekanbaru | Western Indonesia Time | 02:00 |
| Cheonan-si Seville | Central European Time | 07:00 |
| Cheonan-si Tolyatti | Samara Time | 05:00 |
| Cheonan-si Jaboatão | Brasilia Time | 12:00 |
| Cheonan-si Shizuoka | Japan Time | 00:00 |
| Cheonan-si Santo Domingo Oeste | Atlantic Time | 13:00 |
| Cheonan-si Rajshahi | Bangladesh Time | 03:00 |
| Cheonan-si City of Balikpapan | Central Indonesia Time | 01:00 |
| Cheonan-si Changzhi | China Time | 01:00 |
| Cheonan-si Bulawayo | Central Africa Time | 07:00 |
| Cheonan-si Zagreb | Central European Time | 07:00 |
| Cheonan-si Agadir | Western European Time | 08:00 |
| Cheonan-si Sarajevo | Central European Time | 07:00 |
| Cheonan-si La Plata | Argentina Time | 12:00 |
| Cheonan-si Tunis | Central European Time | 08:00 |
| Cheonan-si Zhangjiakou | China Time | 01:00 |
| Cheonan-si Zigong | China Time | 01:00 |
| Cheonan-si Fuxin | China Time | 01:00 |
| Cheonan-si Enugu | West Africa Time | 08:00 |
| Cheonan-si Tangier | Western European Time | 08:00 |
| Cheonan-si Huangshi | China Time | 01:00 |
| Cheonan-si Liaoyang | China Time | 01:00 |
| Cheonan-si Sheffield | United Kingdom Time | 08:00 |
| Cheonan-si Seattle | Pacific Time | 16:00 |
| Cheonan-si Denver | Mountain Time | 15:00 |
| Cheonan-si El Paso | Mountain Time | 15:00 |
| Cheonan-si Kumamoto | Japan Time | 00:00 |
| Cheonan-si Raipur | India Standard Time | 03:30 |
| Cheonan-si General Santos | Philippine Time | 01:00 |
| Cheonan-si Dushanbe | Tajikistan Time | 04:00 |
| Cheonan-si Osasco | Brasilia Time | 12:00 |
| Cheonan-si San Luis Potosi | Central Time | 14:00 |