Difference time between Guinea and Guyana in hours, minutes, and seconds is [ +4 hours ] with gregorian date today is Tuesday 16th of December 2025 in Guinean local time, Where the time now in Guinea is 06:57 AM and the time now in Guyana is 02:57 AM in Guyanese local time and the time comparison between Republic of Guinea and Guyana in greenwich time ( GMT ) where Guinea advanced about greenwich time ( GMT +00:00 ) while Guyana late for greenwich time ( GMT -04:00 ).