Difference time between Guyana and Zambia in hours, minutes, and seconds is [ -6 hours ] with gregorian date today is Wednesday 9th of September 2026 in Guyanese local time, Where the time now in Guyana is 15:18 PM and the time now in Zambia is 21:18 PM in Zambian local time and the time comparison between Co-operative Republic of Guyana and Zambia in greenwich time ( GMT ) where Guyana late for greenwich time ( GMT -04:00 ) while Zambia advanced about greenwich time ( GMT +02:00 ).