Difference time between Guinea and Macao in hours, minutes, and seconds is [ -8 hours ] with gregorian date today is Wednesday 19th of August 2026 in Guinean local time, Where the time now in Guinea is 16:19 PM and the time now in Macao is 00:19 AM in Macanese local time and the time comparison between Republic of Guinea and Macao in greenwich time ( GMT ) where Guinea advanced about greenwich time ( GMT +00:00 ) while Macao advanced about greenwich time ( GMT +08:00 ).