Difference time between Guinea Bissau and Iran in hours, minutes, and seconds is [ -4 hours -30 minutes ] with gregorian date today is Sunday 23rd of August 2026 in Guinea Bissauan local time, Where the time now in Guinea Bissau is 00:41 AM and the time now in Iran is 05:11 AM in Iranian local time and the time comparison between Republic of Guinea-Bissau and Iran in greenwich time ( GMT ) where Guinea Bissau advanced about greenwich time ( GMT +00:00 ) while Iran advanced about greenwich time ( GMT +04:30 ).