Wow, that’s serious, good luck!
I got hungry at 24 hours, no real need for fuel per se but it was annoying and as stubborn as my hunger always is so I ate my carnivore meal, I will do ZornFast anyway in a few days so I rather don’t use up all my determination quota too early I used my fasting muscles a bit, 24 hours might be normal for me but not eating until 8pm is extremely rare and typically involves more or less hunger towards the end unlike my normal 24-26 hour fasts.
I feel very well now.