Difference time between French Guiana and Cameroon in hours, minutes, and seconds is [ -4 hours ] with gregorian date today is Thursday 1st of January 2026 in French Guianese local time, Where the time now in French Guiana is 00:49 AM and the time now in Cameroon is 04:49 AM in Cameroonian local time and the time comparison between French Guiana and Cameroon in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Cameroon advanced about greenwich time ( GMT +01:00 ).