Difference time between Singapore and Guyana in hours, minutes, and seconds is [ +12 hours ] with gregorian date today is Wednesday 10th of June 2026 in Singaporean local time, Where the time now in Singapore is 09:44 AM and the time now in Guyana is 21:44 PM in Guyanese local time and the time comparison between Republic of Singapore and Guyana in greenwich time ( GMT ) where Singapore advanced about greenwich time ( GMT +08:00 ) while Guyana late for greenwich time ( GMT -04:00 ).