My surgery was scheduled for 11am and it didn't happen until around 330pm. There seemed to be confusion around why and I was told differing things. It was frustrating. I am also diabetic and not eating that long caused some issues with my blood sugar, which was then was very high after given some glucose in my IV than very low given some insulin, etc. It went to a dangerously low level during the actual surgery as an outcome, which is scary.
LGH DAS