Ships Companies Ports Documents Distances FAQ Contacts Guinea-Bissau Time: GMT. International dialling code: +245. Territorial waters: Limit of 12nm claimed for territorial waters and a limit of 200nm for an exclusive economic zone. Capital city: Bissau. PORT LATITUDE LONGITUDE REMARK UNCTAD TIME ZONE MAX DRAFT MAIN PORT DETAILS Bissau 11° 51.0' N 015° 35.0' W Port Open GWOXB GMT 7.60   Details Bolama 11° 35.0' N 015° 28.0' W Port Open GWBOL GMT 10.90   Details