Difference time between United States of America and Mongolia in hours, minutes, and seconds is [ -12 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 00:29 AM and the time now in Mongolia is 12:29 PM in Mongolian local time and the time comparison between United States of America and Mongolia in greenwich time ( GMT ) where United States of America late for greenwich time ( GMT -04:00 ) while Mongolia advanced about greenwich time ( GMT +08:00 ).