| Debar Ifran | Western European Time | 01:00 |
| Debar Idlib | Eastern European Time | -01:00 |
| Debar Idukki Township | India Standard Time | -04:30 |
| Debar Idyllwild-Pine Cove | Pacific Time | 09:00 |
| Debar Ichikawa | Japan Time | -08:00 |
| Debar Idar | India Standard Time | -04:30 |
| Debar Idalia | Eastern Australia Time | -09:00 |
| Debar Illueca | Central European Time | 00:00 |
| Debar Ilavala Hobli | India Standard Time | -04:30 |
| Debar Ileret | East Africa Time | -02:00 |
| Debar Iligan City | Philippine Time | -07:00 |
| Debar Ilford | United Kingdom Time | 01:00 |
| Debar Ilfracombe | United Kingdom Time | 01:00 |
| Debar Ikšķile | Eastern European Time | -01:00 |
| Debar Humboldt | Central Time | 07:00 |
| Debar Hunter River | Atlantic Time | 05:00 |
| Debar Hulshout | Central European Time | 00:00 |
| Debar Hultsfred | Central European Time | 00:00 |
| Debar Hulu Langat | Malaysia Time | -07:00 |
| Debar Huixquilucan de Degollado | Central Time | 07:00 |
| Debar Hudson | Eastern Time | 06:00 |
| Debar Hudson Oaks | Central Time | 07:00 |
| Debar Hubali-Dharwad | India Standard Time | -04:30 |
| Debar Huez | Central European Time | 00:00 |
| Debar Hudsonville | Eastern Time | 06:00 |
| Debar Huehuetoca | Central Time | 07:00 |
| Debar Hyde Park | Eastern Australia Time | -09:00 |
| Debar Hyderabad | India Standard Time | -04:30 |
| Debar Hyderabad | India Standard Time | -04:30 |
| Debar Hyderabad | India Standard Time | -04:30 |
| Debar Hyderabad | India Standard Time | -04:30 |
| Debar Huntingdale | Western Australia Time | -07:00 |
| Debar Huttons Ambo | United Kingdom Time | 01:00 |
| Debar Huskisson | Eastern Australia Time | -10:00 |
| Debar Húsavík | Greenwich Mean Time | 01:00 |
| Debar Husborne Crawley | United Kingdom Time | 01:00 |
| Debar Hurstville | Eastern Australia Time | -10:00 |
| Debar Hurricane | Mountain Time | 08:00 |