Difference time between Greece and Vietnam in hours, minutes, and seconds is [ -4 hours ] with gregorian date today is Monday 29th of September 2025 in Greek local time, Where the time now in Greece is 21:41 PM and the time now in Vietnam is 01:41 AM in Vietnamese local time and the time comparison between Hellenic Republic Greece and Vietnam in greenwich time ( GMT ) where Greece advanced about greenwich time ( GMT +03:00 ) while Vietnam advanced about greenwich time ( GMT +07:00 ).