| Ohio Emmaus | Eastern Time | 00:00 |
| Ohio Embrun | Eastern Time | 00:00 |
| Ohio Emerald Beach | Eastern Australia Time | -16:00 |
| Ohio Emeryville | Pacific Time | 03:00 |
| Ohio Grafton | Central Time | 01:00 |
| Ohio Graikas | Eastern European Time | -07:00 |
| Ohio Haro | Central European Time | -06:00 |
| Ohio Gramado | Brasilia Time | -02:00 |
| Ohio Grambling | Central Time | 01:00 |
| Ohio Gräfenhainichen | Central European Time | -06:00 |
| Ohio Grafschaft | Central European Time | -06:00 |
| Ohio Grafton | Eastern Australia Time | -16:00 |
| Ohio Govone | Central European Time | -06:00 |
| Ohio Goxhill | United Kingdom Time | -05:00 |
| Ohio Goult | Central European Time | -06:00 |
| Ohio Gote | India Standard Time | -10:30 |
| Ohio Gotha | Eastern Time | 00:00 |
| Ohio Gothenburg | Central European Time | -06:00 |
| Ohio Gothenburg | Central Time | 01:00 |
| Ohio Gossau | Central European Time | -06:00 |
| Ohio Gosford | Eastern Australia Time | -16:00 |
| Ohio Gort | Ireland Time | -05:00 |
| Ohio Gore | New Zealand Time | -18:00 |
| Ohio Göreme Belediyesi | Turkey Time | -08:00 |
| Ohio Gorey | Ireland Time | -05:00 |
| Ohio Frodsham | United Kingdom Time | -05:00 |
| Ohio Fruitland Park | Eastern Time | 00:00 |
| Ohio Frostburg | Eastern Time | 00:00 |
| Ohio Fresnedillas de la Oliva | Central European Time | -06:00 |
| Ohio Frenchtown | Eastern Time | 00:00 |
| Ohio Friendsville | Eastern Time | 00:00 |
| Ohio Friday Harbor | Pacific Time | 03:00 |
| Ohio Friedland | Central European Time | -06:00 |
| Ohio Friedberg | Central European Time | -06:00 |
| Ohio Cottonwood | Mountain Time | 02:00 |
| Ohio Cottage Grove | Pacific Time | 03:00 |
| Ohio Covington | Central Time | 01:00 |
| Ohio Cowaramup | Western Australia Time | -13:00 |
| Ohio Court-St.-Etienne | Central European Time | -06:00 |
| Ohio Courthézon | Central European Time | -06:00 |
| Ohio Cova da Piedade | Western European Time | -05:00 |
| Ohio Coulter | United Kingdom Time | -05:00 |
| Ohio Courmayeur | Central European Time | -06:00 |
| Ohio Dikson | Krasnoyarsk Time | -12:00 |
| Ohio Dikili | Turkey Time | -08:00 |
| Ohio Digne | Central European Time | -06:00 |
| Ohio Differdange | Central European Time | -06:00 |
| Ohio Cozumel | Eastern Time | 00:00 |
| Ohio Cramlington | United Kingdom Time | -05:00 |
| Ohio Distrito Federal | Central Time | 01:00 |