Difference time between French Guiana and St Martin in hours, minutes, and seconds is [ +1 hours ] with gregorian date today is Saturday 13th of September 2025 in French Guianese local time, Where the time now in French Guiana is 01:21 AM and the time now in St Martin is 00:21 AM in St Martian local time and the time comparison between French Guiana and St Martin in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while St Martin late for greenwich time ( GMT -04:00 ).