Difference time between Guinea and Japan in hours, minutes, and seconds is [ -9 hours ] with gregorian date today is Wednesday 10th of June 2026 in Guinean local time, Where the time now in Guinea is 03:38 AM and the time now in Japan is 12:38 PM in Japanese local time and the time comparison between Republic of Guinea and Japan in greenwich time ( GMT ) where Guinea advanced about greenwich time ( GMT +00:00 ) while Japan advanced about greenwich time ( GMT +09:00 ).