Difference time between St Martin and Guernsey in hours, minutes, and seconds is [ -4 hours ] with gregorian date today is Friday 20th of March 2026 in St Martian local time, Where the time now in St Martin is 23:23 PM and the time now in Guernsey is 03:23 AM in Guernsian local time and the time comparison between Sint Maarten Dutch part and Guernsey in greenwich time ( GMT ) where St Martin late for greenwich time ( GMT -04:00 ) while Guernsey advanced about greenwich time ( GMT +01:00 ).