| Grudziądz Hsinchu | Taipei Time | -06:00 |
| Grudziądz Jixi | China Time | -06:00 |
| Grudziądz Zanzibar | East Africa Time | -01:00 |
| Grudziądz Tulsa | Central Time | 07:00 |
| Grudziądz Taoyuan City | Taipei Time | -06:00 |
| Grudziądz Tonalá | Central Time | 07:00 |
| Grudziądz Kassala | Central Africa Time | 00:00 |
| Grudziądz Palma | Central European Time | 00:00 |
| Grudziądz Kitwe | Central Africa Time | 00:00 |
| Grudziądz Nasiriyah | Arabian Time | -01:00 |
| Grudziądz Tver | Moscow Time | -01:00 |
| Grudziądz West Jerusalem | Israel Time | -01:00 |
| Grudziądz Machida | Japan Time | -07:00 |
| Grudziądz Yangjiang | China Time | -06:00 |
| Grudziądz Khmelnytskyi | Eastern European Time | -01:00 |
| Grudziądz Gifu | Japan Time | -07:00 |
| Grudziądz Tiruppur | India Standard Time | -03:30 |
| Grudziądz Keelung | Taipei Time | -06:00 |
| Grudziądz El Hoceima | Western European Time | 01:00 |
| Grudziądz Manchester | United Kingdom Time | 01:00 |
| Grudziądz Surrey | Pacific Time | 09:00 |
| Grudziądz Vila Velha | Brasilia Time | 05:00 |
| Grudziądz Weifang | China Time | -06:00 |
| Grudziądz Fujisawa | Japan Time | -07:00 |
| Grudziądz Ndola | Central Africa Time | 00:00 |
| Grudziądz Kollam | India Standard Time | -03:30 |
| Grudziądz Serra | Brasilia Time | 05:00 |
| Grudziądz Samsun | Turkey Time | -01:00 |
| Grudziądz Tallinn | Eastern European Time | -01:00 |
| Grudziądz Bamenda | West Africa Time | 01:00 |
| Grudziądz El Obeid | Central Africa Time | 00:00 |
| Grudziądz Bello | Colombia Time | 07:00 |
| Grudziądz Xinpu | China Time | -06:00 |
| Grudziądz Sandakan | Malaysia Time | -06:00 |
| Grudziądz Buraydah | Arabian Time | -01:00 |
| Grudziądz Kandahar | Afghanistan Time | -02:30 |
| Grudziądz Diadema | Brasilia Time | 05:00 |
| Grudziądz Wichita | Central Time | 07:00 |
| Grudziądz New Orleans | Central Time | 07:00 |
| Grudziądz Comilla | Bangladesh Time | -04:00 |
| Grudziądz Samut Prakan | Indochina Time | -05:00 |
| Grudziądz Nampula | Central Africa Time | 00:00 |
| Grudziądz Arlington | Central Time | 07:00 |
| Grudziądz Cleveland | Eastern Time | 06:00 |
| Grudziądz Bissau | Greenwich Mean Time | 02:00 |
| Grudziądz Iloilo City | Philippine Time | -06:00 |
| Grudziądz Khamis Mushait | Arabian Time | -01:00 |
| Grudziądz Campos | Brasilia Time | 05:00 |
| Grudziądz Resistencia | Argentina Time | 05:00 |
| Grudziądz Misrata | Eastern European Time | 00:00 |