Difference time between Hong Kong and Vietnam in hours, minutes, and seconds is [ +1 hours ] with gregorian date today is Wednesday 29th of October 2025 in Hongkongese local time, Where the time now in Hong Kong is 04:00 AM and the time now in Vietnam is 03:00 AM in Vietnamese local time and the time comparison between Hong Kong Special Administrative Region of China and Vietnam in greenwich time ( GMT ) where Hong Kong advanced about greenwich time ( GMT +08:00 ) while Vietnam advanced about greenwich time ( GMT +07:00 ).