Difference time between Guinea Bissau and Seychelles in hours, minutes, and seconds is [ -4 hours ] with gregorian date today is Thursday 11th of September 2025 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 22:15 PM and the time now in Seychelles is 02:15 AM in Seychellois local time and the time comparison between Republic of Guinea-Bissau and Seychelles in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Seychelles advanced about greenwich time ( GMT +04:00 ).