| Old Basing Ermington | Eastern Australia Time | -09:00 |
| Old Basing Erzhausen | Central European Time | -01:00 |
| Old Basing Ernakulam | India Standard Time | -04:30 |
| Old Basing Franschhoek | South Africa Standard Time | -01:00 |
| Old Basing Franz Josef Glacier | New Zealand Time | -11:00 |
| Old Basing Franklin Township | Eastern Time | 05:00 |
| Old Basing Freiburg | Central European Time | -01:00 |
| Old Basing Freeport | Central Time | 06:00 |
| Old Basing Freeland | Eastern Time | 05:00 |
| Old Basing Frazier Park | Pacific Time | 08:00 |
| Old Basing Frederica | Eastern Time | 05:00 |
| Old Basing Fredonia | Eastern Time | 05:00 |
| Old Basing Frenchtown | Eastern Time | 05:00 |
| Old Basing Fresnedillas de la Oliva | Central European Time | -01:00 |
| Old Basing Friday Harbor | Pacific Time | 08:00 |
| Old Basing Frodsham | United Kingdom Time | 00:00 |
| Old Basing Friendsville | Eastern Time | 05:00 |
| Old Basing Friedberg | Central European Time | -01:00 |
| Old Basing Friedland | Central European Time | -01:00 |
| Old Basing Domodossola | Central European Time | -01:00 |
| Old Basing Domžale | Central European Time | -01:00 |
| Old Basing Don Mueang | Indochina Time | -06:00 |
| Old Basing Dolo | Central European Time | -01:00 |
| Old Basing Dolphin Coast | South Africa Standard Time | -01:00 |
| Old Basing Dolus-d'Oléron | Central European Time | -01:00 |
| Old Basing Dolynka | Eastern European Time | -02:00 |
| Old Basing Doesburg | Central European Time | -01:00 |
| Old Basing Dorrego | Argentina Time | 04:00 |
| Old Basing Dorrigo | Eastern Australia Time | -09:00 |
| Old Basing Donnalucata | Central European Time | -01:00 |
| Old Basing Donji Vinjani | Central European Time | -01:00 |
| Old Basing Dongying | China Time | -07:00 |
| Old Basing Epping | United Kingdom Time | 00:00 |
| Old Basing Épalinges | Central European Time | -01:00 |
| Old Basing Epen | Central European Time | -01:00 |
| Old Basing Ephrata | Eastern Time | 05:00 |
| Old Basing Époisses | Central European Time | -01:00 |
| Old Basing Erbil | Arabian Time | -02:00 |