| Ongole Digne | Central European Time | 03:30 |
| Ongole Placerville | Pacific Time | 12:30 |
| Ongole Distrito Federal | Central Time | 10:30 |
| Ongole Plaffeien | Central European Time | 03:30 |
| Ongole Dinant | Central European Time | 03:30 |
| Ongole Pismo Beach | Pacific Time | 12:30 |
| Ongole Dingle | Ireland Time | 04:30 |
| Ongole Pitlochry | United Kingdom Time | 04:30 |
| Ongole Dillon | Mountain Time | 11:30 |
| Ongole Pithari | Eastern European Time | 02:30 |
| Ongole Dinan | Central European Time | 03:30 |
| Ongole Oaxaca | Central Time | 10:30 |
| Ongole Oaklands Park | Central Australia Time | -04:00 |
| Ongole Oamaru | New Zealand Time | -06:30 |
| Ongole Oberwesel | Central European Time | 03:30 |
| Ongole Oberstaufen | Central European Time | 03:30 |
| Ongole Obertrubach | Central European Time | 03:30 |
| Ongole Oberbüren | Central European Time | 03:30 |
| Ongole Oberhausen-Rheinhausen | Central European Time | 03:30 |
| Ongole Oberkorn | Central European Time | 03:30 |
| Ongole Oberlin | Eastern Time | 09:30 |
| Ongole Obernberg am Brenner | Central European Time | 03:30 |
| Ongole Oak Hill | Eastern Time | 09:30 |
| Ongole Oak Bluffs | Eastern Time | 09:30 |
| Ongole Oak Brook | Central Time | 10:30 |
| Ongole Oakdale | United Kingdom Time | 04:30 |
| Ongole Oakdale | Pacific Time | 12:30 |
| Ongole Oakham | United Kingdom Time | 04:30 |
| Ongole Oakhurst | Pacific Time | 12:30 |
| Ongole Oak Island | Eastern Time | 09:30 |
| Ongole Oak Park Heights | Central Time | 10:30 |
| Ongole Paradeep | India Standard Time | 00:00 |
| Ongole Paradise | Newfoundland Time | 08:00 |
| Ongole Paoli | Eastern Time | 09:30 |
| Ongole Papakura | New Zealand Time | -06:30 |
| Ongole Pannipitiya | India Standard Time | 00:00 |
| Ongole Pano Panagia | Eastern European Time | 02:30 |
| Ongole Panindícuaro | Central Time | 10:30 |