| Markham Luanda | West Africa Time | -05:00 |
| Markham Quezon City | Philippine Time | -12:00 |
| Markham Addis Ababa | East Africa Time | -07:00 |
| Markham Nairobi | East Africa Time | -07:00 |
| Markham Chicago | Central Time | 01:00 |
| Markham Salvador | Brasilia Time | -01:00 |
| Markham Jaipur | India Standard Time | -09:30 |
| Markham Dar es Salaam | East Africa Time | -07:00 |
| Markham Lanzhou | China Time | -12:00 |
| Markham Incheon | Korean Time | -13:00 |
| Markham Yunfu | China Time | -12:00 |
| Markham Basrah | Arabian Time | -07:00 |
| Markham Toronto | Eastern Time | 00:00 |
| Markham Navi Mumbai | India Standard Time | -09:30 |
| Markham Osaka | Japan Time | -13:00 |
| Markham Mogadishu | East Africa Time | -07:00 |
| Markham Daegu | Korean Time | -13:00 |
| Markham Faisalabad | Pakistan Time | -09:00 |
| Markham Izmir | Turkey Time | -07:00 |
| Markham Dakar | Greenwich Mean Time | -04:00 |
| Markham Lucknow | India Standard Time | -09:30 |
| Markham Giza | Eastern European Time | -06:00 |
| Markham Fortaleza | Brasilia Time | -01:00 |
| Markham Cali | Colombia Time | 01:00 |
| Markham Surabaya | Western Indonesia Time | -11:00 |
| Markham Belo Horizonte | Brasilia Time | -01:00 |
| Markham Nanchang | China Time | -12:00 |
| Markham Rome | Central European Time | -06:00 |
| Markham Mashhad | Iran Time | -08:30 |
| Markham Borough of Brooklyn | Eastern Time | 00:00 |
| Markham Houston | Central Time | 01:00 |
| Markham Queens | Eastern Time | 00:00 |
| Markham Nagpur | India Standard Time | -09:30 |
| Markham Maracaibo | Venezuela Time | 00:00 |
| Markham Brasília | Brasilia Time | -01:00 |
| Markham Santo Domingo | Atlantic Time | 00:00 |
| Markham Nagoya | Japan Time | -13:00 |
| Markham Brisbane | Eastern Australia Time | -14:00 |
| Markham Havana | Cuba Time | 00:00 |
| Markham Paris | Central European Time | -06:00 |
| Markham Al Mawşil al Jadīdah | Arabian Time | -07:00 |
| Markham Johannesburg | South Africa Standard Time | -06:00 |
| Markham Kowloon | Hong Kong Time | -12:00 |
| Markham Al Başrah al Qadīmah | Arabian Time | -07:00 |
| Markham Almaty | East Kazakhstan Time | -10:00 |
| Markham Medellin | Colombia Time | 01:00 |
| Markham Tashkent | Uzbekistan Time | -09:00 |
| Markham Algiers | Central European Time | -05:00 |
| Markham Khartoum | Central Africa Time | -06:00 |
| Markham Accra | Greenwich Mean Time | -04:00 |