I used to think they could put a digit clock in the room (built in to avoid theft) but that is not sounding like such a good idea for a couple reasons - Bruce indicates that people are better at stealing them than the cruise line is securing them (don't these people have clocks at home?) Second, I know that you can provide a timing signal to keep clocks synchronized. I realized on our last cruise that even the clocks in public areas of the ship were not synced. We would gain or lose time as we went from deck to deck. It was a little crazy. The same big digital clocks I was used to looking at for very exact world time (working at Cape Canaveral) couldn't agree with each other one deck apart.
All I ask is a tall ship and a star to steer her by; John Masefield
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014, 2016, Royal 2017
Star Clippers: Royal Clipper 2015