I haven't cruise Holland America, but I imagine most of the ships are the same. We were told to check the ships time, that would be the time we needed to watch to make sure we were back on board on time. I didn't even pay attention to if the ship time was the same as the islands (caribbean) time, but I think it was. There was a clock at the gangway as we would get off at each port, that's the time of the ship. Somebody aboard the ship will let you know.
Carnival legend November 2009
Carnival Glory October 2007
Carnival Elation November 2006
Parts of the Caribbean, especially the eastern route are in a different time zone than Florida. I think that HAL has you just stay on ship's time, without changing to match the islands, but safest bet is to wear a watch set to whatever time the ship is using. I would never depend on clocks or watches in an island port.
Have a good and accurate time!
i have never sailed HAL when the ship's time was not adjusted when time zones were crossed. an announcement always appears in the daily bulletin which is distributed to each cabin, to wit: 'remember to set your clocks ahead (or back) tonight......"