Difference time between United kingdom and Japan in hours, minutes, and seconds is [ -8 hours ] with gregorian date today is Monday 6th of October 2025 in British local time, Where the time now in United kingdom is 20:19 PM and the time now in Japan is 04:19 AM in Japanese local time and the time comparison between United Kingdom of Great Britain & Northern Ireland and Japan in greenwich time ( GMT ) where United kingdom advanced about greenwich time ( GMT +01:00 ) while Japan advanced about greenwich time ( GMT +09:00 ).