The End Of Nightwork by Frank Cottrell Boyce

A sleep-deprived new father begins to experience unsettling slips in time and becomes fixated on a fragment of early-modern prophecy that seems to foretell catastrophe. As the pressures of parenthood, precarious work, and apocalyptic dread mount, his world tilts between tender domesticity and obsessive fatalism, blurring faith and delusion until a reckoning forces him to confront what he believes and what he is willing to risk for his family.