Difference time between French Guiana and Estonia in hours, minutes, and seconds is [ -6 hours ] with gregorian date today is Friday 29th of May 2026 in French Guianese local time, Where the time now in French Guiana is 15:53 PM and the time now in Estonia is 21:53 PM in Estonian local time and the time comparison between French Guiana and Estonia in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Estonia advanced about greenwich time ( GMT +03:00 ).