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