| Los Angeles 12:46 am | Houston 2:46 am | New York 3:46 am | London 8:46 am | Paris 9:46 am |
|
Dubai 12:46 pm | Bangalore 2:16 pm | Singapore 4:46 pm | Sydney 7:46 pm | Tokyo 5:46 pm |
| Time zone | Time difference |
| Central Time | 1 hour behind Ottawa. |
| Eastern Time | No time difference with Ottawa. |
| Mountain Time | 2 hours behind Ottawa. |
| Pacific Time | 3 hours behind Ottawa. |
| AEST - Australian Eastern Standard Time | 15 hours ahead of Ottawa time. |
| CET - Central European Time | 6 hours ahead of Ottawa time. |
| GMT - Greenwich Mean Time | 5 hours ahead of Ottawa time. |
| HST - Hawaii-Aleutian Standard Time | 5 hours behind Ottawa time. |
| IST - India Standard Time | 10 hours, 30 minutes ahead of Ottawa time. |
| Abidjan | 5 hours ahead of Ottawa. |
| Abu Dhabi | 9 hours ahead of Ottawa. |
| Abuja | 6 hours ahead of Ottawa. |
| Acapulco | 1 hour behind Ottawa. |
| Accra | 5 hours ahead of Ottawa. |
| Adak | 5 hours behind Ottawa. |
| Adamstown | 3 hours behind Ottawa. |
| Addis Ababa | 8 hours ahead of Ottawa. |
| Adelaide | 15 hours, 30 minutes ahead of Ottawa. |
| Aden | 8 hours ahead of Ottawa. |
| Agra | 10 hours, 30 minutes ahead of Ottawa. |
| Aguascalientes | 1 hour behind Ottawa. |
| Ahmedabad | 10 hours, 30 minutes ahead of Ottawa. |
| Akron | No time difference with Ottawa. |
| Al Jizah | 7 hours ahead of Ottawa. |
| Albany | No time difference with Ottawa. |
| Albuquerque | 2 hours behind Ottawa. |
| Alexandria | 7 hours ahead of Ottawa. |
| Algiers | 6 hours ahead of Ottawa. |
| Almaty | 11 hours ahead of Ottawa. |
| Alofi | 6 hours behind Ottawa. |
| Amman | 7 hours ahead of Ottawa. |
| Amsterdam | 6 hours ahead of Ottawa. |
| Anadyr | 17 hours ahead of Ottawa. |
| Anaheim | 3 hours behind Ottawa. |
| Anchorage | 4 hours behind Ottawa. |
| Andorra La Vella | 6 hours ahead of Ottawa. |
| Ankara | 8 hours ahead of Ottawa. |
| Anshan | 13 hours ahead of Ottawa. |
| Antalya | 8 hours ahead of Ottawa. |
| Antananarivo | 8 hours ahead of Ottawa. |
| Apia | 19 hours ahead of Ottawa. |
| Aqtau | 10 hours ahead of Ottawa. |
| Aqtobe | 10 hours ahead of Ottawa. |
| Arlington | 1 hour behind Ottawa. |
| Ashgabat | 10 hours ahead of Ottawa. |
| Asmara | 8 hours ahead of Ottawa. |
| Astana | 11 hours ahead of Ottawa. |
| Asuncion | 2 hours ahead of Ottawa. |
| Athens | 7 hours ahead of Ottawa. |
| Atlanta | No time difference with Ottawa. |
| Auckland | 18 hours ahead of Ottawa. |
| Augusta | No time difference with Ottawa. |
| Aurora | 2 hours behind Ottawa. |
| Austin | 1 hour behind Ottawa. |
| Azores | 4 hours ahead of Ottawa. |
| Baghdad | 8 hours ahead of Ottawa. |
| Baku | 9 hours ahead of Ottawa. |
| Balikpapan | 13 hours ahead of Ottawa. |
| Baltimore | No time difference with Ottawa. |
| Bamako | 5 hours ahead of Ottawa. |
| Bandar Seri Begawan | 13 hours ahead of Ottawa. |
| Bandung | 12 hours ahead of Ottawa. |
| Bangalore | 10 hours, 30 minutes ahead of Ottawa. |
| Bangkok | 12 hours ahead of Ottawa. |
| Bangui | 6 hours ahead of Ottawa. |
| Banjul | 5 hours ahead of Ottawa. |
| Baotou | 13 hours ahead of Ottawa. |
| Barcelona | 6 hours ahead of Ottawa. |
| Basel | 6 hours ahead of Ottawa. |
| Basra | 8 hours ahead of Ottawa. |
| Basse-Terre | 1 hour ahead of Ottawa. |
| Basseterre | 1 hour ahead of Ottawa. |
| Bastia | 6 hours ahead of Ottawa. |
| Baton Rouge | 1 hour behind Ottawa. |
| Beijing | 13 hours ahead of Ottawa. |
| Beirut | 7 hours ahead of Ottawa. |
| Belfast | 5 hours ahead of Ottawa. |
| Belgrade | 6 hours ahead of Ottawa. |
| Belmopan | 1 hour behind Ottawa. |
| Berlin | 6 hours ahead of Ottawa. |
| Bern | 6 hours ahead of Ottawa. |
| Bethlehem | 7 hours ahead of Ottawa. |
| Bhubaneshwar | 10 hours, 30 minutes ahead of Ottawa. |
| Billings | 2 hours behind Ottawa. |
| Birmingham (UK) | 5 hours ahead of Ottawa. |
| Birmingham (US) | 1 hour behind Ottawa. |
| Bishkek | 11 hours ahead of Ottawa. |
| Bismarck | 1 hour behind Ottawa. |
| Bissau | 5 hours ahead of Ottawa. |
| Bogota | No time difference with Ottawa. |
| Boise | 2 hours behind Ottawa. |
| Boston | No time difference with Ottawa. |
| Brades | 1 hour ahead of Ottawa. |
| Brampton | No time difference with Ottawa. |
| Brasilia | 2 hours ahead of Ottawa. |
| Bratislava | 6 hours ahead of Ottawa. |
| Brazzaville | 6 hours ahead of Ottawa. |
| Bridgetown | 1 hour ahead of Ottawa. |
| Brisbane | 15 hours ahead of Ottawa. |
| Brussels | 6 hours ahead of Ottawa. |
| Bucharest | 7 hours ahead of Ottawa. |
| Budapest | 6 hours ahead of Ottawa. |
| Buenos Aires | 2 hours ahead of Ottawa. |
| Buffalo | No time difference with Ottawa. |
| Bujumbura | 7 hours ahead of Ottawa. |
| Busan | 14 hours ahead of Ottawa. |
| Cairo | 7 hours ahead of Ottawa. |
| Calgary | 2 hours behind Ottawa. |
| Cali | No time difference with Ottawa. |
| Canberra | 16 hours ahead of Ottawa. |
| Cancun | No time difference with Ottawa. |
| Cape Town | 7 hours ahead of Ottawa. |
| Caracas | 1 hour ahead of Ottawa. |
| Cardiff | 5 hours ahead of Ottawa. |
| Carson City | 3 hours behind Ottawa. |
| Casablanca | 6 hours ahead of Ottawa. |
| Castries | 1 hour ahead of Ottawa. |
| Cayenne | 2 hours ahead of Ottawa. |
| Cebu City | 13 hours ahead of Ottawa. |
| Chandigarh | 10 hours, 30 minutes ahead of Ottawa. |
| Changchun | 13 hours ahead of Ottawa. |
| Changsha | 13 hours ahead of Ottawa. |
| Charleston | No time difference with Ottawa. |
| Charlotte | No time difference with Ottawa. |
| Charlottetown | 1 hour ahead of Ottawa. |
| Chatham Island | 18 hours, 45 minutes ahead of Ottawa. |
| Chelyabinsk | 10 hours ahead of Ottawa. |
| Chengdu | 13 hours ahead of Ottawa. |
| Chennai | 10 hours, 30 minutes ahead of Ottawa. |
| Cheyenne | 2 hours behind Ottawa. |
| Chicago | 1 hour behind Ottawa. |
| Chihuahua | 2 hours behind Ottawa. |
| Chittagong | 11 hours ahead of Ottawa. |
| Choibalsan | 13 hours ahead of Ottawa. |
| Chongqing | 13 hours ahead of Ottawa. |
| Christchurch | 18 hours ahead of Ottawa. |
| Cincinnati | No time difference with Ottawa. |
| Cleveland | No time difference with Ottawa. |
| Colombo | 10 hours, 30 minutes ahead of Ottawa. |
| Columbia | No time difference with Ottawa. |
| Columbus | No time difference with Ottawa. |
| Conakry | 5 hours ahead of Ottawa. |
| Concord | No time difference with Ottawa. |
| Copenhagen | 6 hours ahead of Ottawa. |
| Cordoba | 6 hours ahead of Ottawa. |
| Dakar | 5 hours ahead of Ottawa. |
| Dalian | 13 hours ahead of Ottawa. |
| Dallas | 1 hour behind Ottawa. |
| Damascus | 7 hours ahead of Ottawa. |
| Dar Es Salaam | 8 hours ahead of Ottawa. |
| Darwin | 14 hours, 30 minutes ahead of Ottawa. |
| Denpasar | 13 hours ahead of Ottawa. |
| Denver | 2 hours behind Ottawa. |
| Des Moines | 1 hour behind Ottawa. |
| Detroit | No time difference with Ottawa. |
| Dhaka | 11 hours ahead of Ottawa. |
| Dili | 14 hours ahead of Ottawa. |
| Djibouti | 8 hours ahead of Ottawa. |
| Dodoma | 8 hours ahead of Ottawa. |
| Doha | 8 hours ahead of Ottawa. |
| Douglas | 5 hours ahead of Ottawa. |
| Dover | No time difference with Ottawa. |
| Dubai | 9 hours ahead of Ottawa. |
| Dublin | 5 hours ahead of Ottawa. |
| Durban | 7 hours ahead of Ottawa. |
| Dushanbe | 10 hours ahead of Ottawa. |
| Dusseldorf | 6 hours ahead of Ottawa. |
| Easter Island | No time difference with Ottawa. |
| Edinburgh | 5 hours ahead of Ottawa. |
| Edmonton | 2 hours behind Ottawa. |
| El Aaiun | 6 hours ahead of Ottawa. |
| El Paso | 2 hours behind Ottawa. |
| Esfahan | 8 hours, 30 minutes ahead of Ottawa. |
| Fairbanks | 4 hours behind Ottawa. |
| Faisalabad | 10 hours ahead of Ottawa. |
| Fakaofo | 19 hours ahead of Ottawa. |
| Fernando De Noronha | 3 hours ahead of Ottawa. |
| Foochow | 13 hours ahead of Ottawa. |
| Fort Worth | 1 hour behind Ottawa. |
| Fort-de-France | 1 hour ahead of Ottawa. |
| Frankfort | No time difference with Ottawa. |
| Frankfurt | 6 hours ahead of Ottawa. |
| Freetown | 5 hours ahead of Ottawa. |
| Fresno | 3 hours behind Ottawa. |
| Fukuoka | 14 hours ahead of Ottawa. |
| Funafuti | 17 hours ahead of Ottawa. |
| Funchal | 5 hours ahead of Ottawa. |
| Fushun | 13 hours ahead of Ottawa. |
| Gaborone | 7 hours ahead of Ottawa. |
| Galapagos Islands | 1 hour behind Ottawa. |
| Gambier Islands | 4 hours behind Ottawa. |
| Gatineau | No time difference with Ottawa. |
| Gaza | 7 hours ahead of Ottawa. |
| Gdansk | 6 hours ahead of Ottawa. |
| Geneva | 6 hours ahead of Ottawa. |
| George Town(Cayman Islands) | No time difference with Ottawa. |
| Georgetown | 1 hour ahead of Ottawa. |
| Gibraltar | 6 hours ahead of Ottawa. |
| Glasgow | 5 hours ahead of Ottawa. |
| Guadalajara | 1 hour behind Ottawa. |
| Guam | 15 hours ahead of Ottawa. |
| Guatemala | 1 hour behind Ottawa. |
| Guayaquil | No time difference with Ottawa. |
| Guiyang | 13 hours ahead of Ottawa. |
| Halifax | 1 hour ahead of Ottawa. |
| Hamburg | 6 hours ahead of Ottawa. |
| Hamilton (Bermuda) | 1 hour ahead of Ottawa. |
| Hamilton (Canada) | No time difference with Ottawa. |
| Hangzhou | 13 hours ahead of Ottawa. |
| Hanoi | 12 hours ahead of Ottawa. |
| Harare | 7 hours ahead of Ottawa. |
| Harbin | 13 hours ahead of Ottawa. |
| Harrisburg | No time difference with Ottawa. |
| Hartford | No time difference with Ottawa. |
| Havana | No time difference with Ottawa. |
| Helena | 2 hours behind Ottawa. |
| Helsinki | 7 hours ahead of Ottawa. |
| Hiroshima | 14 hours ahead of Ottawa. |
| Ho Chi Minh | 12 hours ahead of Ottawa. |
| Hobart | 16 hours ahead of Ottawa. |
| Hong Kong | 13 hours ahead of Ottawa. |
| Honiara | 16 hours ahead of Ottawa. |
| Honolulu | 5 hours behind Ottawa. |
| Houston | 1 hour behind Ottawa. |
| Hovd | 12 hours ahead of Ottawa. |
| Hyderabad | 10 hours, 30 minutes ahead of Ottawa. |
| Incheon | 14 hours ahead of Ottawa. |
| Indianapolis | No time difference with Ottawa. |
| Indore | 10 hours, 30 minutes ahead of Ottawa. |
| Iqaluit | No time difference with Ottawa. |
| Islamabad | 10 hours ahead of Ottawa. |
| Istanbul | 8 hours ahead of Ottawa. |
| Izmir | 8 hours ahead of Ottawa. |
| Jackson | 1 hour behind Ottawa. |
| Jacksonville | No time difference with Ottawa. |
| Jaipur | 10 hours, 30 minutes ahead of Ottawa. |
| Jakarta | 12 hours ahead of Ottawa. |
| Jayapura | 14 hours ahead of Ottawa. |
| Jeddah | 8 hours ahead of Ottawa. |
| Jefferson City | 1 hour behind Ottawa. |
| Jersey City | No time difference with Ottawa. |
| Jerusalem | 7 hours ahead of Ottawa. |
| Jilin | 13 hours ahead of Ottawa. |
| Jinan | 13 hours ahead of Ottawa. |
| Jinzhou | 13 hours ahead of Ottawa. |
| Johannesburg | 7 hours ahead of Ottawa. |
| Juba | 8 hours ahead of Ottawa. |
| Juneau | 4 hours behind Ottawa. |
| Kabul | 9 hours, 30 minutes ahead of Ottawa. |
| Kaliningrad | 7 hours ahead of Ottawa. |
| Kampala | 8 hours ahead of Ottawa. |
| Kano Nigeria | 6 hours ahead of Ottawa. |
| Kanpur | 10 hours, 30 minutes ahead of Ottawa. |
| Kansas City | 1 hour behind Ottawa. |
| Kaohsiung | 13 hours ahead of Ottawa. |
| Karachi | 10 hours ahead of Ottawa. |
| Kathmandu | 10 hours, 45 minutes ahead of Ottawa. |
| Kaunas | 7 hours ahead of Ottawa. |
| Kawasaki | 14 hours ahead of Ottawa. |
| Kazan | 8 hours ahead of Ottawa. |
| Khartoum | 7 hours ahead of Ottawa. |
| Khon Kaen | 12 hours ahead of Ottawa. |
| Khulna | 11 hours ahead of Ottawa. |
| Kiev | 7 hours ahead of Ottawa. |
| Kigali | 7 hours ahead of Ottawa. |
| Kingston | 17 hours ahead of Ottawa. |
| Kingston (Jamaica) | No time difference with Ottawa. |
| Kingstown | 1 hour ahead of Ottawa. |
| Kinshasa | 6 hours ahead of Ottawa. |
| Kiritimati | 19 hours ahead of Ottawa. |
| Kishinev | 7 hours ahead of Ottawa. |
| Kitakyushu | 14 hours ahead of Ottawa. |
| Knoxville | No time difference with Ottawa. |
| Kobe | 14 hours ahead of Ottawa. |
| Kolkata | 10 hours, 30 minutes ahead of Ottawa. |
| Koror | 14 hours ahead of Ottawa. |
| Kowloon | 13 hours ahead of Ottawa. |
| Krakow | 6 hours ahead of Ottawa. |
| Krasnoyarsk | 12 hours ahead of Ottawa. |
| Kuala Lumpur | 13 hours ahead of Ottawa. |
| Kunming | 13 hours ahead of Ottawa. |
| Kupang | 13 hours ahead of Ottawa. |
| Kuwait City | 8 hours ahead of Ottawa. |
| Kyoto | 14 hours ahead of Ottawa. |
| La Coruna | 6 hours ahead of Ottawa. |
| La Paz | 1 hour ahead of Ottawa. |
| La Plata | 2 hours ahead of Ottawa. |
| Lagos | 6 hours ahead of Ottawa. |
| Lahore | 10 hours ahead of Ottawa. |
| Lanchow | 13 hours ahead of Ottawa. |
| Las Palmas | 5 hours ahead of Ottawa. |
| Las Vegas | 3 hours behind Ottawa. |
| Lausanne | 6 hours ahead of Ottawa. |
| Laval | No time difference with Ottawa. |
| Leon | 1 hour behind Ottawa. |
| Lexington-Fayette | No time difference with Ottawa. |
| Lhasa | 13 hours ahead of Ottawa. |
| Libreville | 6 hours ahead of Ottawa. |
| Lilongwe | 7 hours ahead of Ottawa. |
| Lima | No time difference with Ottawa. |
| Lincoln | 1 hour behind Ottawa. |
| Lisbon | 5 hours ahead of Ottawa. |
| Little Rock | 1 hour behind Ottawa. |
| Liverpool | 5 hours ahead of Ottawa. |
| Ljubljana | 6 hours ahead of Ottawa. |
| Lodz | 6 hours ahead of Ottawa. |
| Lome | 5 hours ahead of Ottawa. |
| London | 5 hours ahead of Ottawa. |
| London (Canada) | No time difference with Ottawa. |
| Long Beach | 3 hours behind Ottawa. |
| Longueuil | No time difference with Ottawa. |
| Lord Howe Island | 16 hours ahead of Ottawa. |
| Los Angeles | 3 hours behind Ottawa. |
| Louisville | No time difference with Ottawa. |
| Luanda | 6 hours ahead of Ottawa. |
| Lubumbashi | 7 hours ahead of Ottawa. |
| Lucknow | 10 hours, 30 minutes ahead of Ottawa. |
| Ludhiana | 10 hours, 30 minutes ahead of Ottawa. |
| Luoyang | 13 hours ahead of Ottawa. |
| Lusaka | 7 hours ahead of Ottawa. |
| Luxembourg | 6 hours ahead of Ottawa. |
| Macau | 13 hours ahead of Ottawa. |
| Madison | 1 hour behind Ottawa. |
| Madrid | 6 hours ahead of Ottawa. |
| Majuro | 17 hours ahead of Ottawa. |
| Malabo | 6 hours ahead of Ottawa. |
| Malang | 12 hours ahead of Ottawa. |
| Male | 10 hours ahead of Ottawa. |
| Mamoutzou | 8 hours ahead of Ottawa. |
| Managua | 1 hour behind Ottawa. |
| Manama | 8 hours ahead of Ottawa. |
| Manaus | 1 hour ahead of Ottawa. |
| Manila | 13 hours ahead of Ottawa. |
| Maputo | 7 hours ahead of Ottawa. |
| Mar Del Plata | 2 hours ahead of Ottawa. |
| Markham | No time difference with Ottawa. |
| Maseru | 7 hours ahead of Ottawa. |
| Mataram | 13 hours ahead of Ottawa. |
| Mazatlan | 2 hours behind Ottawa. |
| Mbabane | 7 hours ahead of Ottawa. |
| Mecca | 8 hours ahead of Ottawa. |
| Medan | 12 hours ahead of Ottawa. |
| Medellin | No time difference with Ottawa. |
| Melbourne | 16 hours ahead of Ottawa. |
| Melekeok | 14 hours ahead of Ottawa. |
| Memphis | 1 hour behind Ottawa. |
| Mendoza | 2 hours ahead of Ottawa. |
| Merida | 1 hour behind Ottawa. |
| Mesa | 2 hours behind Ottawa. |
| Mexicali | 3 hours behind Ottawa. |
| Mexico City | 1 hour behind Ottawa. |
| Miami | No time difference with Ottawa. |
| Milan | 6 hours ahead of Ottawa. |
| Milwaukee | 1 hour behind Ottawa. |
| Minneapolis | 1 hour behind Ottawa. |
| Minsk | 8 hours ahead of Ottawa. |
| Mississauga | No time difference with Ottawa. |
| Mobile | 1 hour behind Ottawa. |
| Mogadishu | 8 hours ahead of Ottawa. |
| Monaco | 6 hours ahead of Ottawa. |
| Monrovia | 5 hours ahead of Ottawa. |
| Monterrey | 1 hour behind Ottawa. |
| Montevideo | 2 hours ahead of Ottawa. |
| Montgomery | 1 hour behind Ottawa. |
| Montpelier | No time difference with Ottawa. |
| Montreal | No time difference with Ottawa. |
| Moroni | 8 hours ahead of Ottawa. |
| Moscow | 8 hours ahead of Ottawa. |
| Mumbai | 10 hours, 30 minutes ahead of Ottawa. |
| Munich | 6 hours ahead of Ottawa. |
| Murmansk | 8 hours ahead of Ottawa. |
| Muscat | 9 hours ahead of Ottawa. |
| Nagoya | 14 hours ahead of Ottawa. |
| Nagpur | 10 hours, 30 minutes ahead of Ottawa. |
| Nairobi | 8 hours ahead of Ottawa. |
| Nanchang | 13 hours ahead of Ottawa. |
| Naples | 6 hours ahead of Ottawa. |
| Nashville | 1 hour behind Ottawa. |
| Nassau | No time difference with Ottawa. |
| Naypyidaw | 11 hours, 30 minutes ahead of Ottawa. |
| Ndjamena | 6 hours ahead of Ottawa. |
| New Delhi | 10 hours, 30 minutes ahead of Ottawa. |
| New Orleans | 1 hour behind Ottawa. |
| New York | No time difference with Ottawa. |
| Newark | No time difference with Ottawa. |
| Niamey | 6 hours ahead of Ottawa. |
| Nice | 6 hours ahead of Ottawa. |
| Nicosia | 7 hours ahead of Ottawa. |
| Nome | 4 hours behind Ottawa. |
| Norfolk | No time difference with Ottawa. |
| Nouakchott | 5 hours ahead of Ottawa. |
| Noumea | 16 hours ahead of Ottawa. |
| Novgorod | 8 hours ahead of Ottawa. |
| Novosibirsk | 12 hours ahead of Ottawa. |
| Nukualofa | 18 hours ahead of Ottawa. |
| Nuuk | 2 hours ahead of Ottawa. |
| Oakland | 3 hours behind Ottawa. |
| Odesa | 7 hours ahead of Ottawa. |
| Okayama | 14 hours ahead of Ottawa. |
| Oklahoma City | 1 hour behind Ottawa. |
| Omsk | 11 hours ahead of Ottawa. |
| Oranjestad | 1 hour ahead of Ottawa. |
| Orlando | No time difference with Ottawa. |
| Osaka | 14 hours ahead of Ottawa. |
| Oslo | 6 hours ahead of Ottawa. |
| Ouagadougou | 5 hours ahead of Ottawa. |
| Pago Pago | 6 hours behind Ottawa. |
| Palembang | 12 hours ahead of Ottawa. |
| Palikir | 16 hours ahead of Ottawa. |
| Palma | 6 hours ahead of Ottawa. |
| Panaji | 10 hours, 30 minutes ahead of Ottawa. |
| Panama | No time difference with Ottawa. |
| Papeete | 5 hours behind Ottawa. |
| Paramaribo | 2 hours ahead of Ottawa. |
| Paris | 6 hours ahead of Ottawa. |
| Patna | 10 hours, 30 minutes ahead of Ottawa. |
| Pensacola | 1 hour behind Ottawa. |
| Perm | 10 hours ahead of Ottawa. |
| Perth | 13 hours ahead of Ottawa. |
| Peshawar | 10 hours ahead of Ottawa. |
| Petropavlovsk-Kamchatsky | 17 hours ahead of Ottawa. |
| Philadelphia | No time difference with Ottawa. |
| Phnom Penh | 12 hours ahead of Ottawa. |
| Phoenix | 2 hours behind Ottawa. |
| Pierre | 1 hour behind Ottawa. |
| Pittsburgh | No time difference with Ottawa. |
| Podgorica | 6 hours ahead of Ottawa. |
| Port Elizabeth | 7 hours ahead of Ottawa. |
| Port Louis | 9 hours ahead of Ottawa. |
| Port Moresby | 15 hours ahead of Ottawa. |
| Port Of Spain | 1 hour ahead of Ottawa. |
| Port Vila | 16 hours ahead of Ottawa. |
| Port-au-Prince | No time difference with Ottawa. |
| Port-aux-Francais | 10 hours ahead of Ottawa. |
| Portland | 3 hours behind Ottawa. |
| Porto | 5 hours ahead of Ottawa. |
| Porto Alegre | 2 hours ahead of Ottawa. |
| Porto Novo | 6 hours ahead of Ottawa. |
| Poznan | 6 hours ahead of Ottawa. |
| Prague | 6 hours ahead of Ottawa. |
| Praia | 4 hours ahead of Ottawa. |
| Pretoria | 7 hours ahead of Ottawa. |
| Pristina | 6 hours ahead of Ottawa. |
| Providence | No time difference with Ottawa. |
| Pune | 10 hours, 30 minutes ahead of Ottawa. |
| Pyongyang | 14 hours ahead of Ottawa. |
| Qiqihar | 13 hours ahead of Ottawa. |
| Quebec | No time difference with Ottawa. |
| Quito | No time difference with Ottawa. |
| Rabat | 6 hours ahead of Ottawa. |
| Raleigh | No time difference with Ottawa. |
| Rarotonga | 5 hours behind Ottawa. |
| Rawaki | 18 hours ahead of Ottawa. |
| Recife | 2 hours ahead of Ottawa. |
| Regina | 1 hour behind Ottawa. |
| Reykjavik | 5 hours ahead of Ottawa. |
| Richmond | No time difference with Ottawa. |
| Riga | 7 hours ahead of Ottawa. |
| Rio Branco | No time difference with Ottawa. |
| Rio De Janeiro | 2 hours ahead of Ottawa. |
| Riverside | 3 hours behind Ottawa. |
| Riyadh | 8 hours ahead of Ottawa. |
| Road Town | 1 hour ahead of Ottawa. |
| Rochester | No time difference with Ottawa. |
| Rome | 6 hours ahead of Ottawa. |
| Rosario | 2 hours ahead of Ottawa. |
| Roseau | 1 hour ahead of Ottawa. |
| Rotterdam | 6 hours ahead of Ottawa. |
| Sacramento | 3 hours behind Ottawa. |
| Saint Georges | 1 hour ahead of Ottawa. |
| Saint John | 1 hour ahead of Ottawa. |
| Saint Johns | 1 hour ahead of Ottawa. |
| Saint Paul | 1 hour behind Ottawa. |
| Saint-Denis | 9 hours ahead of Ottawa. |
| Saint-Petersburg | 8 hours ahead of Ottawa. |
| Saint-Pierre | 2 hours ahead of Ottawa. |
| Saipan | 15 hours ahead of Ottawa. |
| Salem | 3 hours behind Ottawa. |
| Salt Lake City | 2 hours behind Ottawa. |
| Salta | 2 hours ahead of Ottawa. |
| Salvador | 2 hours ahead of Ottawa. |
| Salzburg | 6 hours ahead of Ottawa. |
| Samara | 9 hours ahead of Ottawa. |
| San Antonio | 1 hour behind Ottawa. |
| San Bernardino | 3 hours behind Ottawa. |
| San Diego | 3 hours behind Ottawa. |
| San Francisco | 3 hours behind Ottawa. |
| San Jose | 3 hours behind Ottawa. |
| San Jose (Costa Rica) | 1 hour behind Ottawa. |
| San Juan | 1 hour ahead of Ottawa. |
| San Luis Potosi | 1 hour behind Ottawa. |
| San Marino | 6 hours ahead of Ottawa. |
| San Salvador | 1 hour behind Ottawa. |
| Sana | 8 hours ahead of Ottawa. |
| Santa Ana | 1 hour behind Ottawa. |
| Santa Fe | 2 hours behind Ottawa. |
| Santiago | 2 hours ahead of Ottawa. |
| Santo Domingo | 1 hour ahead of Ottawa. |
| Sao Paulo | 2 hours ahead of Ottawa. |
| Sao Tome | 5 hours ahead of Ottawa. |
| Sapporo | 14 hours ahead of Ottawa. |
| Sarajevo | 6 hours ahead of Ottawa. |
| Saskatoon | 1 hour behind Ottawa. |
| Seattle | 3 hours behind Ottawa. |
| Semarang | 12 hours ahead of Ottawa. |
| Sendai | 14 hours ahead of Ottawa. |
| Seoul | 14 hours ahead of Ottawa. |
| Shanghai | 13 hours ahead of Ottawa. |
| Shenzhen | 13 hours ahead of Ottawa. |
| Shijiazhuang | 13 hours ahead of Ottawa. |
| Sialkot | 10 hours ahead of Ottawa. |
| Sian | 13 hours ahead of Ottawa. |
| Singapore | 13 hours ahead of Ottawa. |
| Singaraja | 13 hours ahead of Ottawa. |
| Sioux Falls | 1 hour behind Ottawa. |
| Skopje | 6 hours ahead of Ottawa. |
| Sochi | 8 hours ahead of Ottawa. |
| Sofia | 7 hours ahead of Ottawa. |
| Southampton | 5 hours ahead of Ottawa. |
| St. Johns | 1 hour, 30 minutes ahead of Ottawa. |
| St. Louis | 1 hour behind Ottawa. |
| St. Petersburg | No time difference with Ottawa. |
| Stanley | 2 hours ahead of Ottawa. |
| Stockholm | 6 hours ahead of Ottawa. |
| Stockton | 3 hours behind Ottawa. |
| Stuttgart | 6 hours ahead of Ottawa. |
| Surabaya | 12 hours ahead of Ottawa. |
| Surakarta | 12 hours ahead of Ottawa. |
| Surat | 10 hours, 30 minutes ahead of Ottawa. |
| Surrey | 3 hours behind Ottawa. |
| Suva | 18 hours ahead of Ottawa. |
| Sydney | 16 hours ahead of Ottawa. |
| Szczecin | 6 hours ahead of Ottawa. |
| Taegu | 14 hours ahead of Ottawa. |
| Taiohae | 4 hours, 30 minutes behind Ottawa. |
| Taipei | 13 hours ahead of Ottawa. |
| Taiyuan | 13 hours ahead of Ottawa. |
| Tallinn | 7 hours ahead of Ottawa. |
| Tampa | No time difference with Ottawa. |
| Tangier | 6 hours ahead of Ottawa. |
| Tangshan | 13 hours ahead of Ottawa. |
| Tarawa | 17 hours ahead of Ottawa. |
| Tashkent | 10 hours ahead of Ottawa. |
| Tbilisi | 9 hours ahead of Ottawa. |
| Tegucigalpa | 1 hour behind Ottawa. |
| Tehran | 8 hours, 30 minutes ahead of Ottawa. |
| Tel Aviv | 7 hours ahead of Ottawa. |
| The Settlement | 12 hours ahead of Ottawa. |
| The Valley | 1 hour ahead of Ottawa. |
| Thimphu | 11 hours ahead of Ottawa. |
| Tianjin | 13 hours ahead of Ottawa. |
| Tijuana | 3 hours behind Ottawa. |
| Tirane | 6 hours ahead of Ottawa. |
| Tokyo | 14 hours ahead of Ottawa. |
| Toledo | No time difference with Ottawa. |
| Topeka | 1 hour behind Ottawa. |
| Toronto | No time difference with Ottawa. |
| Torshavn | 5 hours ahead of Ottawa. |
| Trenton | No time difference with Ottawa. |
| Tripoli | 7 hours ahead of Ottawa. |
| Tsingtao | 13 hours ahead of Ottawa. |
| Tucson | 2 hours behind Ottawa. |
| Tucuman | 2 hours ahead of Ottawa. |
| Tunis | 6 hours ahead of Ottawa. |
| Turin | 6 hours ahead of Ottawa. |
| Ufa | 10 hours ahead of Ottawa. |
| Ulaanbaatar | 13 hours ahead of Ottawa. |
| Unalaska | 4 hours behind Ottawa. |
| Vadodara | 10 hours, 30 minutes ahead of Ottawa. |
| Vaduz | 6 hours ahead of Ottawa. |
| Valletta | 6 hours ahead of Ottawa. |
| Vancouver | 3 hours behind Ottawa. |
| Varanasi | 10 hours, 30 minutes ahead of Ottawa. |
| Vatican City | 6 hours ahead of Ottawa. |
| Venice | 6 hours ahead of Ottawa. |
| Veracruz | 1 hour behind Ottawa. |
| Victoria | 3 hours behind Ottawa. |
| Victoria (Seychelles) | 9 hours ahead of Ottawa. |
| Vienna | 6 hours ahead of Ottawa. |
| Vientiane | 12 hours ahead of Ottawa. |
| Vilnius | 7 hours ahead of Ottawa. |
| Virginia Beach | No time difference with Ottawa. |
| Visakhapatnam | 10 hours, 30 minutes ahead of Ottawa. |
| Vladivostok | 15 hours ahead of Ottawa. |
| Warsaw | 6 hours ahead of Ottawa. |
| Washington DC | No time difference with Ottawa. |
| Wellington | 18 hours ahead of Ottawa. |
| Whitehorse | 3 hours behind Ottawa. |
| Wichita | 1 hour behind Ottawa. |
| Willemstad | 1 hour ahead of Ottawa. |
| Windhoek | 7 hours ahead of Ottawa. |
| Windsor | No time difference with Ottawa. |
| Winnipeg | 1 hour behind Ottawa. |
| Wroclaw | 6 hours ahead of Ottawa. |
| Wuhan | 13 hours ahead of Ottawa. |
| Yamoussoukro | 5 hours ahead of Ottawa. |
| Yangon | 11 hours, 30 minutes ahead of Ottawa. |
| Yaounde | 6 hours ahead of Ottawa. |
| Yaren | 17 hours ahead of Ottawa. |
| Yazd | 8 hours, 30 minutes ahead of Ottawa. |
| Yekaterinburg | 10 hours ahead of Ottawa. |
| Yellowknife | 2 hours behind Ottawa. |
| Yerevan | 9 hours ahead of Ottawa. |
| Yokohama | 14 hours ahead of Ottawa. |
| Yuzhno-Sakhalinsk | 16 hours ahead of Ottawa. |
| Zagreb | 6 hours ahead of Ottawa. |
| Zhengzhou | 13 hours ahead of Ottawa. |
| Zibo | 13 hours ahead of Ottawa. |
| Zurich | 6 hours ahead of Ottawa. |