Difference time between Guinea Bissau and Antigua and Barbuda in hours, minutes, and seconds is [ +4 hours ] with gregorian date today is Thursday 30th of July 2026 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 00:06 AM and the time now in Antigua and Barbuda is 20:06 PM in Antiguan local time and the time comparison between Republic of Guinea-Bissau and Antigua and Barbuda in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Antigua and Barbuda late for greenwich time ( GMT -04:00 ).