Difference time between Isle of Man and Guinea Bissau in hours, minutes, and seconds is [ +1 hours ] with gregorian date today is Thursday 20th of August 2026 in Manx local time, Where the time now in Isle of Man is 20:37 PM and the time now in Guinea Bissau is 19:37 PM in Guinea Bissauan local time and the time comparison between Isle of Man and Guinea Bissau in greenwich time ( GMT ) where Isle of Man advanced about greenwich time ( GMT +01:00 ) while Guinea Bissau he has the same greenwich time ( GMT +00:00 ).