| Ottawa Balwyn | Eastern Australia Time | -14:00 |
| Ottawa Port Neches | Central Time | 01:00 |
| Ottawa Pune | India Standard Time | -09:30 |
| Ottawa Millbrook | Central Time | 01:00 |
| Ottawa Thiruverumbur | India Standard Time | -09:30 |
| Ottawa Bar Harbor | Eastern Time | 00:00 |
| Ottawa Clayton | Eastern Time | 00:00 |
| Ottawa Anzegem | Central European Time | -06:00 |
| Ottawa Bamber Bridge | United Kingdom Time | -05:00 |
| Ottawa Port Noarlunga | Central Australia Time | -13:30 |
| Ottawa Pune | India Standard Time | -09:30 |
| Ottawa Millers Falls | Eastern Time | 00:00 |
| Ottawa Thibodaux | Central Time | 01:00 |
| Ottawa Baraboo | Central Time | 01:00 |
| Ottawa Cle Elum | Pacific Time | 03:00 |
| Ottawa Grand Haven | Eastern Time | 00:00 |
| Ottawa Arundel | Eastern Time | 00:00 |
| Ottawa Port Melbourne | Eastern Australia Time | -14:00 |
| Ottawa Phitsanulok | Indochina Time | -11:00 |
| Ottawa Millers Point | Eastern Australia Time | -14:00 |
| Ottawa Thirroul | Eastern Australia Time | -14:00 |
| Ottawa Barabanki | India Standard Time | -09:30 |
| Ottawa Clear Lake | Central Time | 01:00 |
| Ottawa Grand Lake | Mountain Time | 02:00 |
| Ottawa Artà | Central European Time | -06:00 |
| Ottawa Port Hope | Eastern Time | 00:00 |
| Ottawa Phoenix | South Africa Standard Time | -06:00 |
| Ottawa Millheim | Eastern Time | 00:00 |
| Ottawa Tacloban City | Philippine Time | -12:00 |
| Ottawa Bapas | India Standard Time | -09:30 |
| Ottawa Clawson | Eastern Time | 00:00 |
| Ottawa Granbury | Central Time | 01:00 |
| Ottawa Arruda dos Vinhos | Western European Time | -05:00 |
| Ottawa Port Isabel | Central Time | 01:00 |
| Ottawa Phraeksa | Indochina Time | -11:00 |
| Ottawa Millington | Central Time | 01:00 |
| Ottawa Thị xã Phú Thọ | Indochina Time | -11:00 |
| Ottawa Avathanapatti | India Standard Time | -09:30 |
| Ottawa Cayma District | Peru Time | 01:00 |
| Ottawa Granby | Mountain Time | 02:00 |
| Ottawa Al Mudayq | Gulf Standard Time | -08:00 |
| Ottawa Port Jefferson | Eastern Time | 00:00 |
| Ottawa Phunphin | Indochina Time | -11:00 |
| Ottawa Millner | Central Australia Time | -13:30 |
| Ottawa Sweet Home | Pacific Time | 03:00 |
| Ottawa Avebury | United Kingdom Time | -05:00 |
| Ottawa Cazzago San Martino | Central European Time | -06:00 |
| Ottawa Grand Blanc | Eastern Time | 00:00 |
| Ottawa Al Jaradiyah | Arabian Time | -07:00 |
| Ottawa Port Klang | Malaysia Time | -12:00 |