Difference time between French Guiana and Slovenia in hours, minutes, and seconds is [ -4 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 Slovenia is 18:20 PM in Slovenian local time and the time comparison between French Guiana and Slovenia in greenwich time ( GMT ) where French Guiana late for greenwich time ( GMT -03:00 ) while Slovenia advanced about greenwich time ( GMT +02:00 ).