Difference time between St Martin and Guernsey in hours, minutes, and seconds is [ -5 hours ] with gregorian date today is Tuesday 20th of October 2026 in St Martian local time, Where the time now in St Martin is 16:41 PM and the time now in Guernsey is 21:41 PM 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 ).