Difference time between Mauritania and Saint Lucia in hours, minutes, and seconds is [ +4 hours ] with gregorian date today is Thursday 10th of September 2026 in Mauritanian local time, Where the time now in Mauritania is 07:24 AM and the time now in Saint Lucia is 03:24 AM in Saint Lucia local time and the time comparison between Islamic Republic of Mauritania and Saint Lucia in greenwich time ( GMT ) where Mauritania advanced about greenwich time ( GMT +00:00 ) while Saint Lucia late for greenwich time ( GMT -04:00 ).