The Cayman Islands remain on United States Eastern Standard Time all year round (we do not adjust our clocks for Daylight Savings Time). All excursion times are shown in Local Island Time. Daylight Saving Time begins for most of the United States on the first Sunday of April at 2:00am. Time reverts back to Standard Time (when ship time is the same as Cayman Islands time) at 2 a.m. on the last Sunday of October.