| Galston Grover Beach | Pacific Time | 08:00 |
| Galston Gruissan | Central European Time | -01:00 |
| Galston Grevesmühlen | Central European Time | -01:00 |
| Galston Greystoke | United Kingdom Time | 00:00 |
| Galston Greyton | South Africa Standard Time | -01:00 |
| Galston Grezzana | Central European Time | -01:00 |
| Galston Grindelwald | Central European Time | -01:00 |
| Galston Grinnell | Central Time | 06:00 |
| Galston Grönland | Central European Time | -01:00 |
| Galston Grosse Pointe Park | Eastern Time | 05:00 |
| Galston Großpostwitz | Central European Time | -01:00 |
| Galston Groß Grönau | Central European Time | -01:00 |
| Galston Großerlach | Central European Time | -01:00 |
| Galston Freiburg | Central European Time | -01:00 |
| Galston Freeport | Central Time | 06:00 |
| Galston Freeland | Eastern Time | 05:00 |
| Galston Frazier Park | Pacific Time | 08:00 |
| Galston Frederica | Eastern Time | 05:00 |
| Galston Fredonia | Eastern Time | 05:00 |
| Galston Franschhoek | South Africa Standard Time | -01:00 |
| Galston Franz Josef Glacier | New Zealand Time | -11:00 |
| Galston Franklin Township | Eastern Time | 05:00 |
| Galston Enmore | Eastern Australia Time | -09:00 |
| Galston England | Eastern European Time | -02:00 |
| Galston Englishtown | Eastern Time | 05:00 |
| Galston Enderby | Pacific Time | 08:00 |
| Galston Engelberg | Central European Time | -01:00 |
| Galston Greenwood Village | Mountain Time | 07:00 |
| Galston Grenzach-Wyhlen | Central European Time | -01:00 |
| Galston Frostburg | Eastern Time | 05:00 |
| Galston Fruitland Park | Eastern Time | 05:00 |
| Galston Greenway | Eastern Australia Time | -09:00 |
| Galston Greenwich | Eastern Time | 05:00 |
| Galston Frenchtown | Eastern Time | 05:00 |
| Galston Fresnedillas de la Oliva | Central European Time | -01:00 |
| Galston Frodsham | United Kingdom Time | 00:00 |
| Galston Friendsville | Eastern Time | 05:00 |
| Galston Friedland | Central European Time | -01:00 |
| Galston Friedberg | Central European Time | -01:00 |
| Galston Friday Harbor | Pacific Time | 08:00 |
| Galston Jette | Central European Time | -01:00 |
| Galston Jettingen-Scheppach | Central European Time | -01:00 |
| Galston Idlib | Eastern European Time | -02:00 |
| Galston Idukki Township | India Standard Time | -04:30 |
| Galston Idyllwild-Pine Cove | Pacific Time | 08:00 |
| Galston Idar | India Standard Time | -04:30 |
| Galston Idalia | Eastern Australia Time | -09:00 |
| Galston Ichikawa | Japan Time | -08:00 |
| Galston Ifran | Western European Time | 00:00 |
| Galston Havana | Cuba Time | 05:00 |