| Ottawa Qiqihar | China Time | -13:00 |
| Ottawa Klang | Malaysia Time | -13:00 |
| Ottawa Mendoza | Argentina Time | -02:00 |
| Ottawa Konya | Turkey Time | -08:00 |
| Ottawa Mbuji-Mayi | Central Africa Time | -07:00 |
| Ottawa Vijayawada | India Standard Time | -10:30 |
| Ottawa Pikine | Greenwich Mean Time | -05:00 |
| Ottawa Turin | Central European Time | -06:00 |
| Ottawa Mysore | India Standard Time | -10:30 |
| Ottawa Jacksonville | Eastern Time | 00:00 |
| Ottawa Wenzhou | China Time | -13:00 |
| Ottawa San Francisco | Pacific Time | 03:00 |
| Ottawa Liverpool | United Kingdom Time | -05:00 |
| Ottawa Saratov | Saratov Time | -09:00 |
| Ottawa Tegucigalpa | Central Time | 01:00 |
| Ottawa Bucheon-si | Korean Time | -14:00 |
| Ottawa Columbus | Eastern Time | 00:00 |
| Ottawa Voronezh | Moscow Time | -08:00 |
| Ottawa Ranchi | India Standard Time | -10:30 |
| Ottawa Naucalpan | Central Time | 01:00 |
| Ottawa Ulaanbaatar | Ulaanbaatar Time | -13:00 |
| Ottawa Takeo | Indochina Time | -12:00 |
| Ottawa Ahwaz | Iran Time | -08:30 |
| Ottawa Arequipa | Peru Time | 00:00 |
| Ottawa Padang | Western Indonesia Time | -12:00 |
| Ottawa Hubli | India Standard Time | -10:30 |
| Ottawa Marrakesh | Western European Time | -06:00 |
| Ottawa Denpasar | Central Indonesia Time | -13:00 |
| Ottawa Kampung Baru Subang | Malaysia Time | -13:00 |
| Ottawa Fort Worth | Central Time | 01:00 |
| Ottawa Indianapolis | Eastern Time | 00:00 |
| Ottawa Charlotte | Eastern Time | 00:00 |
| Ottawa Duque de Caxias | Brasilia Time | -02:00 |
| Ottawa Jos | West Africa Time | -06:00 |
| Ottawa Valencia | Central European Time | -06:00 |
| Ottawa Ilorin | West Africa Time | -06:00 |
| Ottawa Callao | Peru Time | 00:00 |
| Ottawa La Paz | Bolivia Time | -01:00 |
| Ottawa Barquisimeto | Venezuela Time | -01:00 |
| Ottawa Chihuahua | Mexican Pacific Time | 02:00 |
| Ottawa Nanning | China Time | -13:00 |
| Ottawa Freetown | Greenwich Mean Time | -05:00 |
| Ottawa Johor Bahru | Malaysia Time | -13:00 |
| Ottawa Jerusalem | Israel Time | -07:00 |
| Ottawa Bandar Lampung | Western Indonesia Time | -12:00 |
| Ottawa Bogor | Western Indonesia Time | -12:00 |
| Ottawa Mombasa | East Africa Time | -08:00 |
| Ottawa Cebu City | Philippine Time | -13:00 |
| Ottawa Muscat | Gulf Standard Time | -09:00 |
| Ottawa Zaporizhia | Eastern European Time | -07:00 |