OMG, when I read that I was ! I have the BEST story to go with that "never use your cell phone for keeping time on the ship."
A few years ago, we went on a 2 night Cruise to Nowhere on Norwegian Dawn in NYC. We were with a group of 10 adults, and on the first night we were all meeting for dinner at 8:00 at the Italian Restaurant. So, it had been a day that started with us all in a limousine and champagne, followed by more drinks and more drinks, a little nap and then meeting for dinner. Pods & I sat down out side of the restaurant at 8pm to wait for everyone. Did I want a drink? Sure-so Pods & I have a martini at the martini bar right outside of the restaurant. We were STARVING, and we couldn't understand where everyone was! Especially because our friends that we came with are very anal, and ALWAYS EARLY. But we figured maybe they had lost track of time, so we just waited. SO we had ANOTHER martini...OMG, we were sooooooo hungry, and we were sooooooo wasted! Well, we finish the second drink, and we were just so confused as to where our friends were- when they all came walking out of the restaurant. They were like, "Where were YOU???" We were right HERE- waiting for you! Well...we were going by the time on our cell phones- which had changed to maritime time, even though the ship had NOT changed....so our 8:00 was really 9:00- we were an hour LATE for dinner, and now it was really after 10 pm- we went back into the dining room, and they brought us out some really AWFUL pasta for dinner, because it was all they had left....OMG, we were a MESS!!! Too many drinks all day without enough food, it was DISASTROUS!!
So yea- I'm pretty sure I'll never use my cell phone to tell time on the ship AGAIN, LOL!!!