English Dictionary

have seen one's day

verb

(idiomatic, of persons, things, ideas, etc.) To be at the point in a life cycle or career of no longer being useful or effective; to be worn-out.

This old building has seen better days.

意味（1）

(idiomatic, of persons, things, ideas, etc.) To be at the point in a life cycle or career of no longer being useful or effective; to be worn-out.

Now, as you say, and most every other one says, the grooving plan has seen its day. We must try some other plan.