Difference time between Iceland and Greece in hours, minutes, and seconds is [ -3 hours ] with gregorian date today is Wednesday 21st of October 2026 in Icelandic local time, Where the time now in Iceland is 21:05 PM and the time now in Greece is 00:05 AM in Greek local time and the time comparison between Republic of Iceland and Greece in greenwich time ( GMT ) where Iceland advanced about greenwich time ( GMT +00:00 ) while Greece advanced about greenwich time ( GMT +03:00 ).