Difference time between Hong Kong and Sao Tome and Principe in hours, minutes, and seconds is [ +8 hours ] with gregorian date today is Friday 21st of August 2026 in Hongkongese local time, Where the time now in Hong Kong is 17:49 PM and the time now in Sao Tome and Principe is 09:49 AM 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 ).