| Hiram Ifran | Western European Time | -05:00 |
| Hiram Idlib | Eastern European Time | -07:00 |
| Hiram Idukki Township | India Standard Time | -10:30 |
| Hiram Idyllwild-Pine Cove | Pacific Time | 03:00 |
| Hiram Ichikawa | Japan Time | -14:00 |
| Hiram Idar | India Standard Time | -10:30 |
| Hiram Idalia | Eastern Australia Time | -15:00 |
| Hiram Illueca | Central European Time | -06:00 |
| Hiram Ilavala Hobli | India Standard Time | -10:30 |
| Hiram Ileret | East Africa Time | -08:00 |
| Hiram Iligan City | Philippine Time | -13:00 |
| Hiram Ilford | United Kingdom Time | -05:00 |
| Hiram Ilfracombe | United Kingdom Time | -05:00 |
| Hiram Ikšķile | Eastern European Time | -07:00 |
| Hiram Humboldt | Central Time | 01:00 |
| Hiram Hunter River | Atlantic Time | -01:00 |
| Hiram Hulshout | Central European Time | -06:00 |
| Hiram Hultsfred | Central European Time | -06:00 |
| Hiram Hulu Langat | Malaysia Time | -13:00 |
| Hiram Huixquilucan de Degollado | Central Time | 01:00 |
| Hiram Hudson | Eastern Time | 00:00 |
| Hiram Hudson Oaks | Central Time | 01:00 |
| Hiram Hubali-Dharwad | India Standard Time | -10:30 |
| Hiram Huez | Central European Time | -06:00 |
| Hiram Hudsonville | Eastern Time | 00:00 |
| Hiram Huehuetoca | Central Time | 01:00 |
| Hiram Hyde Park | Eastern Australia Time | -15:00 |
| Hiram Hyderabad | India Standard Time | -10:30 |
| Hiram Hyderabad | India Standard Time | -10:30 |
| Hiram Hyderabad | India Standard Time | -10:30 |
| Hiram Hyderabad | India Standard Time | -10:30 |
| Hiram Huntingdale | Western Australia Time | -13:00 |
| Hiram Huttons Ambo | United Kingdom Time | -05:00 |
| Hiram Huskisson | Eastern Australia Time | -16:00 |
| Hiram Húsavík | Greenwich Mean Time | -05:00 |
| Hiram Husborne Crawley | United Kingdom Time | -05:00 |
| Hiram Hurstville | Eastern Australia Time | -16:00 |
| Hiram Hurricane | Mountain Time | 02:00 |