| Ottawa Guayaquil | Ecuador Time | 00:00 |
| Ottawa Ordos | China Time | -13:00 |
| Ottawa Sana'a | Arabian Time | -08:00 |
| Ottawa Beirut | Eastern European Time | -07:00 |
| Ottawa Perth | Western Australia Time | -13:00 |
| Ottawa Sapporo | Japan Time | -14:00 |
| Ottawa Jilin | China Time | -13:00 |
| Ottawa Bucharest | Eastern European Time | -07:00 |
| Ottawa Camayenne | Greenwich Mean Time | -05:00 |
| Ottawa Indore | India Standard Time | -10:30 |
| Ottawa Iztapalapa | Central Time | 01:00 |
| Ottawa Ecatepec | Central Time | 01:00 |
| Ottawa Conakry | Greenwich Mean Time | -05:00 |
| Ottawa Maracay | Venezuela Time | -01:00 |
| Ottawa Medan | Western Indonesia Time | -12:00 |
| Ottawa Rawalpindi | Pakistan Time | -10:00 |
| Ottawa Minsk | Moscow Time | -08:00 |
| Ottawa Budapest | Central European Time | -06:00 |
| Ottawa Mosul | Arabian Time | -08:00 |
| Ottawa Hamburg | Central European Time | -06:00 |
| Ottawa Curitiba | Brasilia Time | -02:00 |
| Ottawa Warsaw | Central European Time | -06:00 |
| Ottawa Bandung | Western Indonesia Time | -12:00 |
| Ottawa Soweto | South Africa Standard Time | -07:00 |
| Ottawa Vienna | Central European Time | -06:00 |
| Ottawa Rabat | Western European Time | -06:00 |
| Ottawa Guadalajara | Central Time | 01:00 |
| Ottawa Barcelona | Central European Time | -06:00 |
| Ottawa Pretoria | South Africa Standard Time | -07:00 |
| Ottawa Aleppo | Eastern European Time | -07:00 |
| Ottawa Kunshan | China Time | -13:00 |
| Ottawa Manila | Philippine Time | -13:00 |
| Ottawa Montreal | Eastern Time | 00:00 |
| Ottawa Patna | India Standard Time | -10:30 |
| Ottawa Bhopal | India Standard Time | -10:30 |
| Ottawa Manaus | Amazon Time | -01:00 |
| Ottawa Xinyang | China Time | -13:00 |
| Ottawa Puebla | Central Time | 01:00 |
| Ottawa Kaduna | West Africa Time | -06:00 |
| Ottawa Phnom Penh | Indochina Time | -12:00 |
| Ottawa Damascus | Eastern European Time | -07:00 |
| Ottawa Philadelphia | Eastern Time | 00:00 |
| Ottawa Phoenix | Mountain Time | 02:00 |
| Ottawa Isfahan | Iran Time | -08:30 |
| Ottawa Ludhiana | India Standard Time | -10:30 |
| Ottawa Harare | Central Africa Time | -07:00 |
| Ottawa Kobe | Japan Time | -14:00 |
| Ottawa Bekasi | Western Indonesia Time | -12:00 |
| Ottawa Kaohsiung | Taipei Time | -13:00 |
| Ottawa Stockholm | Central European Time | -06:00 |