Difference time between Guyana and Brunei Darussalam in hours, minutes, and seconds is [ -12 hours ] with gregorian date today is Thursday 9th of October 2025 in Guyanese local time, Where the time now in Guyana is 06:20 AM and the time now in Brunei Darussalam is 18:20 PM in Bruneian local time and the time comparison between Co-operative Republic of Guyana and Brunei Darussalam in greenwich time ( GMT ) where Guyana late for greenwich time ( GMT -04:00 ) while Brunei Darussalam advanced about greenwich time ( GMT +08:00 ).