Difference time between French Guiana and Tanzania in hours, minutes, and seconds is [ -6 hours ] with gregorian date today is Saturday 15th of November 2025 in French Guianese local time, Where the time now in French Guiana is 14:20 PM and the time now in Tanzania is 20:20 PM in Tanzanian local time and the time comparison between French Guiana and Tanzania in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Tanzania advanced about greenwich time ( GMT +03:00 ).