Difference time between Guinea and Japan in hours, minutes, and seconds is [ -9 hours ] with gregorian date today is Thursday 22nd of October 2026 in Guinean local time, Where the time now in Guinea is 00:19 AM and the time now in Japan is 09:19 AM 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 ).