Difference time between United States of America and Iceland in hours, minutes, and seconds is [ -4 hours ] with gregorian date today is Saturday 4th of October 2025 in American local time, Where the time now in United States of America is 15:06 PM and the time now in Iceland is 19:06 PM in Icelandic local time and the time comparison between United States of America and Iceland in greenwich time ( GMT ) where United States of America late for greenwich time ( GMT -04:00 ) while Iceland he has the same greenwich time ( GMT +00:00 ).