: during one's life I've seen a lot of crazy things in my time.

What is one's time?

adjective [ADJECTIVE noun] One-time is used to describe something such as a job, position, or role which someone used to have, or something which happened in the past. [journalism] The legislative body had voted to oust the country's onetime rulers. Synonyms: former, previous, prior, sometime More Synonyms of one-time.

What does take one's time mean?

: to be leisurely and unhurried about doing something There's no need to hurry.