| Grudziądz Jamnagar | India Standard Time | -03:30 |
| Grudziądz Sacramento | Pacific Time | 09:00 |
| Grudziądz Aracaju | Brasilia Time | 05:00 |
| Grudziądz Port Sudan | Central Africa Time | 00:00 |
| Grudziądz Santa Fe | Argentina Time | 05:00 |
| Grudziądz San Pedro Sula | Central Time | 08:00 |
| Grudziądz Suez | Eastern European Time | 00:00 |
| Grudziądz Dresden | Central European Time | 00:00 |
| Grudziądz Tomsk | Tomsk Time | -05:00 |
| Grudziądz Masina | West Africa Time | 01:00 |
| Grudziądz Saharanpur | India Standard Time | -03:30 |
| Grudziądz Gulbarga | India Standard Time | -03:30 |
| Grudziądz Bhātpāra | India Standard Time | -03:30 |
| Grudziądz Najaf | Arabian Time | -01:00 |
| Grudziądz Feira de Santana | Brasilia Time | 05:00 |
| Grudziądz Shah Alam | Malaysia Time | -06:00 |
| Grudziądz Mariupol' | Eastern European Time | -01:00 |
| Grudziądz Himeji | Japan Time | -07:00 |
| Grudziądz Tuxtla Gutiérrez | Central Time | 07:00 |
| Grudziądz Gomel | Moscow Time | -01:00 |
| Grudziądz Okene | West Africa Time | 01:00 |
| Grudziądz Uijeongbu-si | Korean Time | -07:00 |
| Grudziądz East London | South Africa Standard Time | 00:00 |
| Grudziądz Yazd | Iran Time | -02:30 |
| Grudziądz Hargeisa | East Africa Time | -01:00 |
| Grudziądz Siālkot | Pakistan Time | -03:00 |
| Grudziądz Kemerovo | Novokuznetsk Time | -05:00 |
| Grudziądz Yichang | China Time | -06:00 |
| Grudziądz Hwaseong-si | Korean Time | -07:00 |
| Grudziądz Kansas City | Central Time | 07:00 |
| Grudziądz Cuautitlán Izcalli | Central Time | 07:00 |
| Grudziądz Yinchuan | China Time | -06:00 |
| Grudziądz Skopje | Central European Time | 00:00 |
| Grudziądz Vereeniging | South Africa Standard Time | 00:00 |
| Grudziądz The Hague | Central European Time | 00:00 |
| Grudziądz Long Beach | Pacific Time | 09:00 |
| Grudziądz Mixco | Central Time | 08:00 |
| Grudziądz Lyon | Central European Time | 00:00 |
| Grudziądz Londrina | Brasilia Time | 05:00 |
| Grudziądz Mesa | Mountain Time | 09:00 |
| Grudziądz Jiaojiangcun | China Time | -06:00 |
| Grudziądz Matsudo | Japan Time | -07:00 |
| Grudziądz Juiz de Fora | Brasilia Time | 05:00 |
| Grudziądz Nishinomiya | Japan Time | -07:00 |
| Grudziądz Tula | Moscow Time | -01:00 |
| Grudziądz Borough of Staten Island | Eastern Time | 06:00 |
| Grudziądz Kawaguchi | Japan Time | -07:00 |
| Grudziądz Zunyi | China Time | -06:00 |
| Grudziądz Jiaxing | China Time | -06:00 |
| Grudziądz Belford Roxo | Brasilia Time | 05:00 |