Difference time between Guinea and Sao Tome and Principe in hours, minutes, and seconds is [ ] with gregorian date today is Tuesday 16th of December 2025 in Guinean local time, Where the time now in Guinea is 06:50 AM and the time now in Sao Tome and Principe is 06:50 AM in Sao Tomean local time and the time comparison between Republic of Guinea and Sao Tome and Principe in greenwich time ( GMT ) where Guinea advanced about greenwich time ( GMT +00:00 ) while Sao Tome and Principe he has the same greenwich time ( GMT +00:00 ).