The phrase "latter day" can be replaced with a number of synonyms that convey the same meaning. It is often used to describe the current era or recent times, and some alternative phrases include "modern day," "contemporary era," "present age," or "recent times." Alternatively, "latter days" can refer specifically to the end times or the apocalypse, and synonyms for this meaning include "the end of days," "the last days," or "the final judgment." Regardless of the context, these synonyms can help clarify and enhance your writing style and convey your message more clearly.