| Welkom Göreme Belediyesi | Turkey Time | -01:00 |
| Welkom Gorey | Ireland Time | 02:00 |
| Welkom Gore | New Zealand Time | -11:00 |
| Welkom Goxhill | United Kingdom Time | 02:00 |
| Welkom Govone | Central European Time | 01:00 |
| Welkom Goult | Central European Time | 01:00 |
| Welkom Gossau | Central European Time | 01:00 |
| Welkom Gotha | Eastern Time | 07:00 |
| Welkom Gothenburg | Central European Time | 01:00 |
| Welkom Gothenburg | Central Time | 08:00 |
| Welkom Gote | India Standard Time | -03:30 |
| Welkom Horsley | Eastern Australia Time | -09:00 |
| Welkom Holden Hill | Central Australia Time | -08:30 |
| Welkom Holdenville | Central Time | 08:00 |
| Welkom Holdorf | Central European Time | 01:00 |
| Welkom Holdrege | Central Time | 08:00 |
| Welkom Holesov | Central European Time | 01:00 |
| Welkom Holgate | Eastern Australia Time | -09:00 |
| Welkom Hoshiarpur | India Standard Time | -03:30 |
| Welkom Hotchkiss | Mountain Time | 09:00 |
| Welkom Hounslow | United Kingdom Time | 02:00 |
| Welkom Howrah | India Standard Time | -03:30 |
| Welkom Howell | Eastern Time | 07:00 |
| Welkom Hoxie | Central Time | 08:00 |
| Welkom Hoylake | United Kingdom Time | 02:00 |
| Welkom Hubali-Dharwad | India Standard Time | -03:30 |
| Welkom Huajuapan de León | Central Time | 08:00 |
| Welkom Huanggang | China Time | -06:00 |
| Welkom Hudson | Eastern Time | 07:00 |
| Welkom Hyde Park | Eastern Australia Time | -08:00 |
| Welkom Hyderabad | India Standard Time | -03:30 |
| Welkom Hyderabad | India Standard Time | -03:30 |
| Welkom Hyderabad | India Standard Time | -03:30 |
| Welkom Hyderabad | India Standard Time | -03:30 |
| Welkom Hérémence | Central European Time | 01:00 |
| Welkom Heringsdorf | Central European Time | 01:00 |
| Welkom Henndorf am Wallersee | Central European Time | 01:00 |
| Welkom Henrico | Eastern Time | 07:00 |
| Welkom Hepburn Springs | Eastern Australia Time | -09:00 |
| Welkom Hephzibah | Eastern Time | 07:00 |
| Welkom Herodsfoot | United Kingdom Time | 02:00 |
| Welkom Herrin | Central Time | 08:00 |
| Welkom Hershey | Eastern Time | 07:00 |
| Welkom Hingham | Eastern Time | 07:00 |
| Welkom Herve | Central European Time | 01:00 |
| Welkom Herrera de Pisuerga | Central European Time | 01:00 |
| Welkom Hitzacker | Central European Time | 01:00 |
| Welkom Hiram | Eastern Time | 07:00 |
| Welkom Hioki | Japan Time | -07:00 |
| Welkom Hokes Bluff | Central Time | 08:00 |