| Thapma Ifran | Western European Time | 06:00 |
| Thapma Idlib | Eastern European Time | 05:00 |
| Thapma Idukki Township | India Standard Time | 01:30 |
| Thapma Idyllwild-Pine Cove | Pacific Time | 15:00 |
| Thapma Ichikawa | Japan Time | -02:00 |
| Thapma Idar | India Standard Time | 01:30 |
| Thapma Idalia | Eastern Australia Time | -03:00 |
| Thapma Illueca | Central European Time | 06:00 |
| Thapma Ilavala Hobli | India Standard Time | 01:30 |
| Thapma Ileret | East Africa Time | 04:00 |
| Thapma Iligan City | Philippine Time | -01:00 |
| Thapma Ilford | United Kingdom Time | 07:00 |
| Thapma Ilfracombe | United Kingdom Time | 07:00 |
| Thapma Ikšķile | Eastern European Time | 05:00 |
| Thapma Humboldt | Central Time | 13:00 |
| Thapma Hunter River | Atlantic Time | 11:00 |
| Thapma Hulshout | Central European Time | 06:00 |
| Thapma Hultsfred | Central European Time | 06:00 |
| Thapma Hulu Langat | Malaysia Time | -01:00 |
| Thapma Huixquilucan de Degollado | Central Time | 13:00 |
| Thapma Hudson | Eastern Time | 12:00 |
| Thapma Hudson Oaks | Central Time | 13:00 |
| Thapma Hubali-Dharwad | India Standard Time | 01:30 |
| Thapma Huez | Central European Time | 06:00 |
| Thapma Hudsonville | Eastern Time | 12:00 |
| Thapma Huehuetoca | Central Time | 13:00 |
| Thapma Hyde Park | Eastern Australia Time | -03:00 |
| Thapma Hyderabad | India Standard Time | 01:30 |
| Thapma Hyderabad | India Standard Time | 01:30 |
| Thapma Hyderabad | India Standard Time | 01:30 |
| Thapma Hyderabad | India Standard Time | 01:30 |
| Thapma Huntingdale | Western Australia Time | -01:00 |
| Thapma Huttons Ambo | United Kingdom Time | 07:00 |
| Thapma Huskisson | Eastern Australia Time | -04:00 |
| Thapma Húsavík | Greenwich Mean Time | 07:00 |
| Thapma Husborne Crawley | United Kingdom Time | 07:00 |
| Thapma Hurstville | Eastern Australia Time | -04:00 |
| Thapma Hurricane | Mountain Time | 14:00 |