To wrap this up: the Princess Alice opening times are a beautiful, frustrating, very English thing. They exist to make you feel fancy, but also to test your patience. For the love of all that is buttery, just check the times before you go.
Now if you’ll excuse me, I’m off to Hastings again this Saturday. And I’ve already Googled the times. I’m bringing a backup biscuit for the waiting period. You should, too.