When is the zombie apocalypse most likely to happen?

The concept of a zombie apocalypse is purely fictional and popularized by movies, books, and Video Games, so it is not something that can be predicted to occur in reality. If we consider the idea metaphorically, societal breakdowns or widespread crises could resemble a "zombie apocalypse," but these scenariOS are speculative and depend on various unpredictable factors. Ultimately, there is no scientific basis or timeline for when, or if, such an event could happen.