Difference time between Guinea Bissau and Serbia in hours, minutes, and seconds is [ -2 hours ] with gregorian date today is Thursday 30th of April 2026 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 19:57 PM and the time now in Serbia is 21:57 PM in Serbian local time and the time comparison between Republic of Guinea-Bissau and Serbia in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Serbia advanced about greenwich time ( GMT +02:00 ).