Despite our proclivity to make either tacit or overt passage of time judgments in daily life, insufficient work has been done to uncover the neurocognitive mechanisms underpinning such determinations. A prima facie promising account of passage of time judgments derives from the predictive processing framework. More precisely, Hohwy et al. (2016) propose that the reported speed of the experienced passage of time is a function of how rapidly the perceptual system "distrusts the present" current perceptual hypothesis in favour of a new one. We will propose that this account suffers from an incapacity to explain the relevant empirical data related to passage of time judgments and also possesses its own internal shortcomings. In its place, we offer a predictive processing theory of passage of time judgments based on "error dynamics", according to which the sense of time moving quickly is grounded in the cognitive system’s subdoxastic detection that it is minimising prediction error at a faster rate than it expected. If, on the other hand, prediction error is being minimised at a slower rate than expected, time will be sensed to be moving slowly, and a more protracted PoTJ will be reported. We will demonstrate the internal consistency of this proposition, as well as its ability to account for the key empirical findings any model of passage of time judgments ought to explain.