The quality of being timeful.

from time to time

On or near the same date (in the past or in the future). / On this occasion (as opposed to last time or next time).

plural of timing

Never.

It was once true (that)...; there was a time when...

When (some future event has come to pass).

(idiomatic) On occasion, sometimes.

(informal, arithmetic) To multiply.

(mathematics) multiplied by