He has been on this schedule basically since he was 1 when him and his brother couldn't be free fed and ate everything and were huge. So vet said to try smaller meals throughout the day, we picked those times back then due to our schedule and they both lost the weight they needed to. He is just so used to the routine that he gets up and waits, plus our other 2 cats follow the same feeding schedule.
We should at least be able to make the majority of that meal the LC Weruva but yea I don't see him adjusting well to not eating around then.