Difference time between French Guiana and Japan in hours, minutes, and seconds is [ -12 hours ] with gregorian date today is Saturday 1st of August 2026 in French Guianese local time, Where the time now in French Guiana is 16:05 PM and the time now in Japan is 04:05 AM in Japanese local time and the time comparison between French Guiana and Japan in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Japan advanced about greenwich time ( GMT +09:00 ).