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

People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpiont - its more like a big ball of . . . wibbly wobbly . . . time-y wimey . . . stuff.

The thing that is measured in minutes, hours, days, years etc using clocks.