| Duffel Hanau | Central European Time | 00:00 |
| Duffel Handsworth Wood | United Kingdom Time | 01:00 |
| Duffel Handforth | United Kingdom Time | 01:00 |
| Duffel Golling an der Salzach | Central European Time | 00:00 |
| Duffel Goldthwaite | Central Time | 07:00 |
| Duffel Gold Hill | Pacific Time | 09:00 |
| Duffel Goldau | Central European Time | 00:00 |
| Duffel Golub-Dobrzyń | Central European Time | 00:00 |
| Duffel Goodwood | Central Australia Time | -07:30 |
| Duffel Gonzales | Central Time | 07:00 |
| Duffel Hampton | Eastern Australia Time | -08:00 |
| Duffel Hammonton | Eastern Time | 06:00 |
| Duffel Hampi | India Standard Time | -03:30 |
| Duffel Hammerfest | Central European Time | 00:00 |
| Duffel Hammersbach | Central European Time | 00:00 |
| Duffel Hammamet Sud | Central European Time | 01:00 |
| Duffel Hammamet | Central European Time | 01:00 |
| Duffel Humboldt | Central Time | 07:00 |
| Duffel Hulshout | Central European Time | 00:00 |
| Duffel Hultsfred | Central European Time | 00:00 |
| Duffel Hulu Langat | Malaysia Time | -06:00 |
| Duffel Hunter River | Atlantic Time | 05:00 |
| Duffel Huntingdale | Western Australia Time | -06:00 |
| Duffel Hudson Oaks | Central Time | 07:00 |
| Duffel Hudsonville | Eastern Time | 06:00 |
| Duffel Huez | Central European Time | 00:00 |
| Duffel Huehuetoca | Central Time | 07:00 |
| Duffel Huixquilucan de Degollado | Central Time | 07:00 |
| Duffel Jasper | Central Time | 07:00 |
| Duffel Jasin | Malaysia Time | -06:00 |
| Duffel Huttons Ambo | United Kingdom Time | 01:00 |
| Duffel Hurricane | Mountain Time | 08:00 |
| Duffel Húsavík | Greenwich Mean Time | 02:00 |
| Duffel Husborne Crawley | United Kingdom Time | 01:00 |
| Duffel Huskisson | Eastern Australia Time | -08:00 |
| Duffel Hurstville | Eastern Australia Time | -08:00 |
| Duffel Koppa | India Standard Time | -03:30 |
| Duffel Koratty | India Standard Time | -03:30 |
| Duffel Korčula | Central European Time | 00:00 |
| Duffel Köniz | Central European Time | 00:00 |
| Duffel Konnunsuo | Eastern European Time | -01:00 |
| Duffel Königsleiten | Central European Time | 00:00 |
| Duffel Konolfingen | Central European Time | 00:00 |
| Duffel Koshu | Japan Time | -07:00 |
| Duffel Košice | Central European Time | 00:00 |
| Duffel Kosova Hora | Central European Time | 00:00 |
| Duffel Landau an der Isar | Central European Time | 00:00 |
| Duffel Landford | United Kingdom Time | 01:00 |
| Duffel Landstuhl | Central European Time | 00:00 |
| Duffel Lanesboro | Central Time | 07:00 |