Time is measured in terms of events which succeed one another from past through present to future; it is the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.
How much Time do We have?
No one knows the number of his days (Ecclesiastes 9:12). One cannot predict what will happen in time. Sometimes we waste time on people, at places, and on things that are not beneficial to us. Understanding that we don't know when our time will expire (Mathew 24:36), let us be mindful to number our days (Psalms 90:12).
A Time for Everything
To everything there is a season, and a time to every purpose under the Heaven (Ecclesiastes 3:1). Nevertheless, 'There is nothing better, than that a man should rejoice in his own works; for that is his portion: for who shall bring him to see what shall be after him (Ecclesiastes 3:22).
Are you Anxious about Time?
Make peace with God and entrust your past, present, and future to Him, then make the best of the present and enjoy what the Lord offers without being anxious about the future.