Difference time between Guyana and San Marino in hours, minutes, and seconds is [ -6 hours ] with gregorian date today is Thursday 9th of October 2025 in Guyanese local time, Where the time now in Guyana is 06:14 AM and the time now in San Marino is 12:14 PM in Sammarinese local time and the time comparison between Co-operative Republic of Guyana and San Marino in greenwich time ( GMT ) where Guyana late for greenwich time ( GMT -04:00 ) while San Marino advanced about greenwich time ( GMT +02:00 ).