Difference time between Singapore and Japan in hours, minutes, and seconds is [ -1 hours ] with gregorian date today is Friday 21st of August 2026 in Singaporean local time, Where the time now in Singapore is 14:12 PM and the time now in Japan is 15:12 PM in Japanese local time and the time comparison between Republic of Singapore and Japan in greenwich time ( GMT ) where Singapore advanced about greenwich time ( GMT +08:00 ) while Japan advanced about greenwich time ( GMT +09:00 ).