| Ciechanów Goiânia | Brasilia Time | 05:00 |
| Ciechanów Guarulhos | Brasilia Time | 05:00 |
| Ciechanów Prague | Central European Time | 00:00 |
| Ciechanów Varanasi | India Standard Time | -03:30 |
| Ciechanów Copenhagen | Central European Time | 00:00 |
| Ciechanów Sofia | Eastern European Time | -01:00 |
| Ciechanów Tripoli | Eastern European Time | 00:00 |
| Ciechanów Port Harcourt | West Africa Time | 01:00 |
| Ciechanów Hiroshima | Japan Time | -07:00 |
| Ciechanów Lijiang | China Time | -06:00 |
| Ciechanów Dubai | Gulf Standard Time | -02:00 |
| Ciechanów Samara | Samara Time | -02:00 |
| Ciechanów Omsk | Omsk Time | -04:00 |
| Ciechanów Benin City | West Africa Time | 01:00 |
| Ciechanów Monterrey | Central Time | 07:00 |
| Ciechanów Malingao | Philippine Time | -06:00 |
| Ciechanów Baku | Azerbaijan Time | -02:00 |
| Ciechanów Leon | Central Time | 07:00 |
| Ciechanów Maiduguri | West Africa Time | 01:00 |
| Ciechanów Kazan | Moscow Time | -01:00 |
| Ciechanów Yerevan | Armenia Time | -02:00 |
| Ciechanów Amritsar | India Standard Time | -03:30 |
| Ciechanów Ouagadougou | Greenwich Mean Time | 02:00 |
| Ciechanów Yono | Japan Time | -07:00 |
| Ciechanów Rostov-on-Don | Moscow Time | -01:00 |
| Ciechanów Allahabad | India Standard Time | -03:30 |
| Ciechanów Goyang-si | Korean Time | -07:00 |
| Ciechanów Gaziantep | Turkey Time | -01:00 |
| Ciechanów Visakhapatnam | India Standard Time | -03:30 |
| Ciechanów Sendai | Japan Time | -07:00 |
| Ciechanów Chelyabinsk | Yekaterinburg Time | -03:00 |
| Ciechanów Datong | China Time | -06:00 |
| Ciechanów Tbilisi | Georgia Time | -02:00 |
| Ciechanów Changshu City | China Time | -06:00 |
| Ciechanów Taichung | Taipei Time | -06:00 |
| Ciechanów Theni | India Standard Time | -03:30 |
| Ciechanów Xianyang | China Time | -06:00 |
| Ciechanów Ufa | Yekaterinburg Time | -03:00 |
| Ciechanów Dnepropetrovsk | Eastern European Time | -01:00 |
| Ciechanów Seongnam-si | Korean Time | -07:00 |
| Ciechanów Campinas | Brasilia Time | 05:00 |
| Ciechanów Jabalpur | India Standard Time | -03:30 |
| Ciechanów Howrah | India Standard Time | -03:30 |
| Ciechanów Huainan | China Time | -06:00 |
| Ciechanów San Jose | Pacific Time | 09:00 |
| Ciechanów Donetsk | Eastern European Time | -01:00 |
| Ciechanów Dublin | Ireland Time | 01:00 |
| Ciechanów Calgary | Mountain Time | 08:00 |
| Ciechanów Brussels | Central European Time | 00:00 |
| Ciechanów Aurangabad | India Standard Time | -03:30 |