Difference time between Isle of Man and Guinea Bissau in hours, minutes, and seconds is [ ] with gregorian date today is Saturday 15th of November 2025 in Manx local time, Where the time now in Isle of Man is 21:03 PM and the time now in Guinea Bissau is 21:03 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 ).