Originally Posted by
atomic sagebrush
Yes, that's fine.
All you're trying to do is extend the amount of hours that you go without eating. There is no set amount of time that's right for everyone, just do what works best for you without making you super miserable. And it is fine if one day this is a certain number of hours and then the next day is more or less than that. There is no benefit to keeping to a certain schedule, it's fine to stay flexible over time.
Just to share what I did, I had coffee (and I cheated and had real sugar in that! naughty!) in the morning at around 5 am and then I'd go till 10-11 (rarely 12) before having my first meal. Then I had 3 meals overall, the one at around 10-11, then dinner sometime between 4-6, and then a bedtime snack since I can't sleep on an empty stomach. Both 2 and 3 meals are equally fine and acceptible.