In it's judgement, not in it's scheduling. Scheduling when cases are viewed based on the probability that they will be difficult doesn't break that promise. But if there is a correlation whereby simpler cases tend to be dismissed while more complicated cases tend to stick, that means you end up with a correlation (not causation) between time of day and case outcome, but that doesn't mean it's biased or affected by hunger.

the sooner we admit that 'justice' can never be impartial and blind because humans are not impartial and blind - the sooner we can admit the ways in which this plays out. And ironically, in the end, the closer we come to impartiality.