time

A nonspatial continuum in which events occur in apparently irreversible succession from the past through the present to the future.

An interval separating two points on this continuum; a duration.

A number, as of years, days, or minutes, representing such an interval.

A similar number representing a specific point on this continuum, reckoned in hours and minutes.

A system by which such intervals are measured or such numbers are reckoned.

An interval, especially a span of years, marked by similar events, conditions, or phenomena; an era.

The present with respect to prevailing conditions and trends.

A suitable or opportune moment or season.