| Brazzaville Hainesport | Eastern Time | 06:00 |
| Brazzaville Gutach | Central European Time | 00:00 |
| Brazzaville Gustine | Pacific Time | 09:00 |
| Brazzaville Guthrie | Central Time | 07:00 |
| Brazzaville Gwoździany | Central European Time | 00:00 |
| Brazzaville Gymea | Eastern Australia Time | -10:00 |
| Brazzaville Gympie | Eastern Australia Time | -09:00 |
| Brazzaville Gyeongju-si | Korean Time | -08:00 |
| Brazzaville Gzira | Central European Time | 00:00 |
| Brazzaville Habarakada | India Standard Time | -04:30 |
| Brazzaville Hackettstown | Eastern Time | 06:00 |
| Brazzaville Gulf Breeze | Central Time | 07:00 |
| Brazzaville Gulf Shores | Central Time | 07:00 |
| Brazzaville Gum Spring | Eastern Time | 06:00 |
| Brazzaville Gura Râului | Eastern European Time | -01:00 |
| Brazzaville Gurdaspur | India Standard Time | -04:30 |
| Brazzaville Gun Barrel City | Central Time | 07:00 |
| Brazzaville Guniyal Gaon | India Standard Time | -04:30 |
| Brazzaville Guntersville | Central Time | 07:00 |
| Brazzaville Gualala | Pacific Time | 09:00 |
| Brazzaville Guanica | Atlantic Time | 05:00 |
| Brazzaville Guar Chempedak | Malaysia Time | -07:00 |
| Brazzaville Grüningen | Central European Time | 00:00 |
| Brazzaville Guadalupe | Central Time | 07:00 |
| Brazzaville Grover Beach | Pacific Time | 09:00 |
| Brazzaville Gruissan | Central European Time | 00:00 |
| Brazzaville Groton | Eastern Time | 06:00 |
| Brazzaville Grottammare | Central European Time | 00:00 |
| Brazzaville Guerneville | Pacific Time | 09:00 |
| Brazzaville Guildford | Eastern Australia Time | -10:00 |
| Brazzaville Guardiagrele | Central European Time | 00:00 |
| Brazzaville Guarne | Colombia Time | 06:00 |
| Brazzaville Guatapé | Colombia Time | 06:00 |
| Brazzaville Gudalur | India Standard Time | -04:30 |
| Brazzaville Guayana City | Venezuela Time | 05:00 |
| Brazzaville Horsley | Eastern Australia Time | -10:00 |
| Brazzaville Horseheads | Eastern Time | 06:00 |
| Brazzaville Hoshiarpur | India Standard Time | -04:30 |
| Brazzaville Horebeke | Central European Time | 00:00 |
| Brazzaville Hopland | Pacific Time | 09:00 |
| Brazzaville Horní Věstonice | Central European Time | 00:00 |
| Brazzaville Horning | United Kingdom Time | 01:00 |
| Brazzaville Hope | Central Time | 07:00 |
| Brazzaville Hope | Pacific Time | 09:00 |
| Brazzaville Hope Island | Eastern Australia Time | -09:00 |
| Brazzaville Hooksett | Eastern Time | 06:00 |
| Brazzaville Honnihalli | India Standard Time | -04:30 |
| Brazzaville Honiton | United Kingdom Time | 01:00 |
| Brazzaville Honesdale | Eastern Time | 06:00 |
| Brazzaville Honfleur | Central European Time | 00:00 |