| Udon Thani Siping | China Time | -01:00 |
| Udon Thani Kagoshima | Japan Time | -02:00 |
| Udon Thani Surakarta | Western Indonesia Time | 00:00 |
| Udon Thani Huai'an | China Time | -01:00 |
| Udon Thani Bhavnagar | India Standard Time | 01:30 |
| Udon Thani Mar del Plata | Argentina Time | 10:00 |
| Udon Thani Bahawalpur | Pakistan Time | 02:00 |
| Udon Thani Zāhedān | Iran Time | 02:30 |
| Udon Thani Aden | Arabian Time | 04:00 |
| Udon Thani Nanded | India Standard Time | 01:30 |
| Udon Thani Orenburg | Yekaterinburg Time | 02:00 |
| Udon Thani Changwon | Korean Time | -02:00 |
| Udon Thani Pristina | Central European Time | 05:00 |
| Udon Thani Jiamusi | China Time | -01:00 |
| Udon Thani Antipolo | Philippine Time | -01:00 |
| Udon Thani Neijiang | China Time | -01:00 |
| Udon Thani Bremen | Central European Time | 05:00 |
| Udon Thani Meknes | Western European Time | 06:00 |
| Udon Thani Sharjah | Gulf Standard Time | 03:00 |
| Udon Thani Banciao | Taipei Time | -01:00 |
| Udon Thani Sargodha | Pakistan Time | 02:00 |
| Udon Thani Bangui | West Africa Time | 06:00 |
| Udon Thani Vilnius | Eastern European Time | 04:00 |
| Udon Thani Cancún | Eastern Time | 12:00 |
| Udon Thani Yangzhou | China Time | -01:00 |
| Udon Thani Novokuznetsk | Novokuznetsk Time | 00:00 |
| Udon Thani Kisangani | Central Africa Time | 05:00 |
| Udon Thani Port Said | Eastern European Time | 05:00 |
| Udon Thani Mersin | Turkey Time | 04:00 |
| Udon Thani Warri | West Africa Time | 06:00 |
| Udon Thani Guli | China Time | -01:00 |
| Udon Thani Ebute Ikorodu | West Africa Time | 06:00 |
| Udon Thani Taku | China Time | -01:00 |
| Udon Thani Jiangmen | China Time | -01:00 |
| Udon Thani Tucson | Mountain Time | 14:00 |
| Udon Thani Nashville | Central Time | 12:00 |
| Udon Thani Taif | Arabian Time | 04:00 |
| Udon Thani Beira | Central Africa Time | 05:00 |
| Udon Thani Guntur | India Standard Time | 01:30 |
| Udon Thani Touba | Greenwich Mean Time | 07:00 |
| Udon Thani Quebec City | Eastern Time | 11:00 |
| Udon Thani Hamedan | Iran Time | 02:30 |
| Udon Thani Cangzhou | China Time | -01:00 |
| Udon Thani San Salvador | Central Time | 13:00 |
| Udon Thani Santa María Chimalhuacán | Central Time | 12:00 |
| Udon Thani Torreón | Central Time | 12:00 |
| Udon Thani Dehradun | India Standard Time | 01:30 |
| Udon Thani Cuiabá | Amazon Time | 11:00 |
| Udon Thani Cuauhtémoc | Central Time | 12:00 |
| Udon Thani Ciudad López Mateos | Central Time | 12:00 |