Difference time between Guinea Bissau and Isle of Man in hours, minutes, and seconds is [ -1 hours ] with gregorian date today is Wednesday 17th of June 2026 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 12:38 PM and the time now in Isle of Man is 13:38 PM in Manx local time and the time comparison between Republic of Guinea-Bissau and Isle of Man in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Isle of Man advanced about greenwich time ( GMT +01:00 ).