| Guinea-Bissau Malawi | Central Africa Time | -02:00 |
| Guinea-Bissau Kazakhstan | East Kazakhstan Time | -05:00 |
| Guinea-Bissau Ecuador | Ecuador Time | 05:00 |
| Guinea-Bissau Cambodia | Indochina Time | -07:00 |
| Guinea-Bissau Mali | Greenwich Mean Time | 00:00 |
| Guinea-Bissau Guatemala | Central Time | 06:00 |
| Guinea-Bissau Zambia | Central Africa Time | -02:00 |
| Guinea-Bissau Angola | West Africa Time | -01:00 |
| Guinea-Bissau Zimbabwe | Central Africa Time | -02:00 |
| Guinea-Bissau Rwanda | Central Africa Time | -02:00 |
| Guinea-Bissau Greece | Eastern European Time | -02:00 |
| Guinea-Bissau Portugal | Western European Time | 00:00 |
| Guinea-Bissau Tunisia | Central European Time | -01:00 |
| Guinea-Bissau Czech Republic | Central European Time | -01:00 |
| Guinea-Bissau Belgium | Central European Time | -01:00 |
| Guinea-Bissau Somalia | East Africa Time | -03:00 |
| Guinea-Bissau Hungary | Central European Time | -01:00 |
| Guinea-Bissau Bolivia | Bolivia Time | 04:00 |
| Guinea-Bissau Burundi | Central Africa Time | -02:00 |
| Guinea-Bissau Sweden | Central European Time | -01:00 |
| Guinea-Bissau Dominican Republic | Atlantic Time | 04:00 |
| Guinea-Bissau Belarus | Moscow Time | -03:00 |
| Guinea-Bissau Haiti | Eastern Time | 05:00 |
| Guinea-Bissau Benin | West Africa Time | -01:00 |
| Guinea-Bissau Azerbaijan | Azerbaijan Time | -04:00 |
| Guinea-Bissau Austria | Central European Time | -01:00 |
| Guinea-Bissau Honduras | Central Time | 06:00 |
| Guinea-Bissau Switzerland | Central European Time | -01:00 |
| Guinea-Bissau Tajikistan | Tajikistan Time | -05:00 |
| Guinea-Bissau Bulgaria | Eastern European Time | -02:00 |
| Guinea-Bissau Togo | Greenwich Mean Time | 00:00 |
| Guinea-Bissau Libya | Eastern European Time | -02:00 |
| Guinea-Bissau Jordan | Eastern European Time | -02:00 |
| Guinea-Bissau Paraguay | Paraguay Time | 03:00 |
| Guinea-Bissau Laos | Indochina Time | -07:00 |
| Guinea-Bissau Papua New Guinea | Papua New Guinea Time | -10:00 |
| Guinea-Bissau El Salvador | Central Time | 06:00 |
| Guinea-Bissau Nicaragua | Central Time | 06:00 |
| Guinea-Bissau Eritrea | East Africa Time | -03:00 |
| Guinea-Bissau Kyrgyzstan | Kyrgyzstan Time | -06:00 |
| Guinea-Bissau Denmark | Central European Time | -01:00 |
| Guinea-Bissau Slovakia | Central European Time | -01:00 |
| Guinea-Bissau Sierra Leone | Greenwich Mean Time | 00:00 |
| Guinea-Bissau Finland | Eastern European Time | -02:00 |
| Guinea-Bissau Norway | Central European Time | -01:00 |
| Guinea-Bissau Turkmenistan | Turkmenistan Time | -05:00 |
| Guinea-Bissau Central African Republic | West Africa Time | -01:00 |
| Guinea-Bissau Singapore | Singapore Standard Time | -08:00 |
| Guinea-Bissau Georgia | Georgia Time | -04:00 |
| Guinea-Bissau Ireland | Ireland Time | 00:00 |