Difference time between Guinea and Sao Tome and Principe in hours, minutes, and seconds is [ ] with gregorian date today is Tuesday 17th of February 2026 in Guinean local time, Where the time now in Guinea is 15:54 PM and the time now in Sao Tome and Principe is 15:54 PM 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 ).