Difference time between Guyana and Sri Lanka in hours, minutes, and seconds is [ -9 hours -30 minutes ] with gregorian date today is Thursday 9th of October 2025 in Guyanese local time, Where the time now in Guyana is 06:18 AM and the time now in Sri Lanka is 15:48 PM in Sri Lankian local time and the time comparison between Co-operative Republic of Guyana and Sri Lanka in greenwich time ( GMT ) where Guyana late for greenwich time ( GMT -04:00 ) while Sri Lanka advanced about greenwich time ( GMT +05:30 ).