Difference time between St Martin and French Guiana in hours, minutes, and seconds is [ -1 hours ] with gregorian date today is Friday 20th of March 2026 in St Martian local time, Where the time now in St Martin is 23:21 PM and the time now in French Guiana is 00:21 AM in French Guianese local time and the time comparison between Sint Maarten Dutch part and French Guiana in greenwich time ( GMT ) where St Martin late for greenwich time ( GMT -04:00 ) while French Guiana late for greenwich time ( GMT -03:00 ).