Difference time between Guinea Bissau and Ukraine in hours, minutes, and seconds is [ -3 hours ] with gregorian date today is Friday 21st of August 2026 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 00:29 AM and the time now in Ukraine is 03:29 AM in Ukrainian local time and the time comparison between Republic of Guinea-Bissau and Ukraine in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Ukraine advanced about greenwich time ( GMT +03:00 ).