I think it was late yesterday - don't know for sure when it sails, but I'm guessing between 4:30 and 5.
I had meant change to late dining for the cruise. This isn't
RCCL or NCL or any with anytime dining. Those tables are taken up each seating. I have never heard of them doing a one night only change. (Besides, the odds of you being able to be at your assigned table at a different dining time are slim to none.)