| Siruganur Ocean Grove | Eastern Australia Time | -04:30 |
| Siruganur Arvidsjaur | Central European Time | 03:30 |
| Siruganur Ocean Isle Beach | Eastern Time | 09:30 |
| Siruganur Orono | Central Time | 10:30 |
| Siruganur Ocean Shores | Pacific Time | 12:30 |
| Siruganur Osborne Park | Western Australia Time | -02:30 |
| Siruganur Ocean View | Eastern Time | 09:30 |
| Siruganur Osceola | Central Time | 10:30 |
| Siruganur Oceana | Eastern Time | 09:30 |
| Siruganur Orthez | Central European Time | 03:30 |
| Siruganur Ocaña | Central European Time | 03:30 |
| Siruganur Orvieto Scalo | Central European Time | 03:30 |
| Siruganur Nightcliff | Central Australia Time | -04:00 |
| Siruganur Orxeta | Central European Time | 03:30 |
| Siruganur Chuo Ward | Japan Time | -03:30 |
| Siruganur Osio Sotto | Central European Time | 03:30 |
| Siruganur Niederscherli | Central European Time | 03:30 |
| Siruganur Ostellato | Central European Time | 03:30 |
| Siruganur Niefern-Öschelbronn | Central European Time | 03:30 |
| Siruganur Ossipee | Eastern Time | 09:30 |
| Siruganur Nieuwpoort | Central European Time | 03:30 |
| Siruganur Ospedaletto | Central European Time | 03:30 |
| Siruganur Oka | Eastern Time | 09:30 |
| Siruganur Osprey | Eastern Time | 09:30 |
| Siruganur Patagonia | Mountain Time | 12:30 |
| Siruganur Ostermundigen | Central European Time | 03:30 |
| Siruganur Pass Christian | Central Time | 10:30 |
| Siruganur Ostia | Central European Time | 03:30 |
| Siruganur Ohio | Eastern Time | 09:30 |
| Siruganur Osterwasser | Central European Time | 03:30 |
| Siruganur Ohain | Central European Time | 03:30 |
| Siruganur Ojai | Pacific Time | 12:30 |
| Siruganur Oia | Eastern European Time | 02:30 |
| Siruganur Oeiras | Western European Time | 04:30 |
| Siruganur Odense | Central European Time | 03:30 |
| Siruganur Officer | Eastern Australia Time | -04:30 |
| Siruganur Ogunquit | Eastern Time | 09:30 |
| Siruganur Ogmore Vale | United Kingdom Time | 04:30 |