Difference time between United States of America and Vietnam in hours, minutes, and seconds is [ -11 hours ] with gregorian date today is Thursday 20th of August 2026 in American local time, Where the time now in United States of America is 01:21 AM and the time now in Vietnam is 12:21 PM in Vietnamese local time and the time comparison between United States of America and Vietnam in greenwich time ( GMT ) where United States of America late for greenwich time ( GMT -04:00 ) while Vietnam advanced about greenwich time ( GMT +07:00 ).