| Ottawa Göreme Belediyesi | Turkey Time | -07:00 |
| Ottawa Kriftel | Central European Time | -06:00 |
| Ottawa Tha Ta Khro | Indochina Time | -11:00 |
| Ottawa Ripley | Eastern Time | 00:00 |
| Ottawa Onești | Eastern European Time | -07:00 |
| Ottawa Latham | Eastern Time | 00:00 |
| Ottawa Città Sant'Angelo | Central European Time | -06:00 |
| Ottawa Rio Verde | Brasilia Time | -01:00 |
| Ottawa Gorey | Ireland Time | -05:00 |
| Ottawa Las Ruedas de Ocón | Central European Time | -06:00 |
| Ottawa Tha Hin | Indochina Time | -11:00 |
| Ottawa Saint-Michel-Chef-Chef | Central European Time | -06:00 |
| Ottawa Ondara | Central European Time | -06:00 |
| Ottawa LaSalle | Eastern Time | 00:00 |
| Ottawa Cittadella | Central European Time | -06:00 |
| Ottawa Saint Moritz | Central European Time | -06:00 |
| Ottawa Goult | Central European Time | -06:00 |
| Ottawa Kandersteg | Central European Time | -06:00 |
| Ottawa Subang | Western Indonesia Time | -11:00 |
| Ottawa Saint-Maurice-Navacelles | Central European Time | -06:00 |
| Ottawa Opatija | Central European Time | -06:00 |
| Ottawa Kientzheim | Central European Time | -06:00 |
| Ottawa Cervantes | Western Australia Time | -12:00 |
| Ottawa Saint Marys | Eastern Time | 00:00 |
| Ottawa Goxhill | United Kingdom Time | -05:00 |
| Ottawa Kiel | Central Time | 01:00 |
| Ottawa Subiaco | Western Australia Time | -12:00 |
| Ottawa River Forest | Central Time | 01:00 |
| Ottawa Oostkapelle | Central European Time | -06:00 |
| Ottawa Kiev | Eastern European Time | -07:00 |
| Ottawa Český Krumlov | Central European Time | -06:00 |
| Ottawa Zürs | Central European Time | -06:00 |
| Ottawa Govone | Central European Time | -06:00 |
| Ottawa Kilambi | India Standard Time | -09:30 |
| Ottawa Suan Dok | Indochina Time | -11:00 |
| Ottawa Zwingenberg | Central European Time | -06:00 |
| Ottawa Ooltewah | Eastern Time | 00:00 |
| Ottawa Kilburn | Central Australia Time | -13:30 |
| Ottawa Cene | Central European Time | -06:00 |
| Ottawa Zwiefalten | Central European Time | -06:00 |
| Ottawa Gossau | Central European Time | -06:00 |
| Ottawa Kilgore | Central Time | 01:00 |
| Ottawa Stuttgart | Central Time | 01:00 |
| Ottawa Zweisimmen | Central European Time | -06:00 |
| Ottawa Oosterbeek | Central European Time | -06:00 |
| Ottawa Killarney | Ireland Time | -05:00 |
| Ottawa Cellefrouin | Central European Time | -06:00 |
| Ottawa Killingly | Eastern Time | 00:00 |
| Ottawa Gotha | Eastern Time | 00:00 |
| Ottawa Kilmore | Eastern Australia Time | -14:00 |