Difference time between United kingdom and Antigua and Barbuda in hours, minutes, and seconds is [ +4 hours ] with gregorian date today is Tuesday 16th of December 2025 in British local time, Where the time now in United kingdom is 22:37 PM and the time now in Antigua and Barbuda is 18:37 PM in Antiguan local time and the time comparison between United Kingdom of Great Britain & Northern Ireland and Antigua and Barbuda in greenwich time ( GMT ) where United kingdom advanced about greenwich time ( GMT +01:00 ) while Antigua and Barbuda late for greenwich time ( GMT -04:00 ).