Difference time between United States of America and Guernsey in hours, minutes, and seconds is [ -5 hours ] with gregorian date today is Friday 21st of August 2026 in American local time, Where the time now in United States of America is 21:19 PM and the time now in Guernsey is 02:19 AM in Guernsian local time and the time comparison between United States of America and Guernsey in greenwich time ( GMT ) where United States of America late for greenwich time ( GMT -04:00 ) while Guernsey advanced about greenwich time ( GMT +01:00 ).