It's a good question. It's good that you have it in mind. We've been messed up twice by CS closing earlier than we expected. We have a bad tendency to let the day fly by, without eating properly, until tantrums are being had (by DH and DS), headaches are being experienced (by me), etc.
The one you mention closed far earlier than we expected, on our very first trip there as adults. And French Market did the same, many trips later.
I would *highly* recommend that you find out early in your day, and write it down, so that you know for later on in the day!