Difference time between French Guiana and Guinea Bissau in hours, minutes, and seconds is [ -3 hours ] with gregorian date today is Saturday 1st of August 2026 in French Guianese local time, Where the time now in French Guiana is 03:05 AM and the time now in Guinea Bissau is 06:05 AM in Guinea Bissauan local time and the time comparison between French Guiana and Guinea Bissau in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Guinea Bissau he has the same greenwich time ( GMT +00:00 ).