Difference time between Hong Kong and Sao Tome and Principe in hours, minutes, and seconds is [ +8 hours ] with gregorian date today is Friday 11th of September 2026 in Hongkongese local time, Where the time now in Hong Kong is 05:46 AM and the time now in Sao Tome and Principe is 21:46 PM in Sao Tomean local time and the time comparison between Hong Kong Special Administrative Region of China and Sao Tome and Principe in greenwich time ( GMT ) where Hong Kong advanced about greenwich time ( GMT +08:00 ) while Sao Tome and Principe he has the same greenwich time ( GMT +00:00 ).