The truth is that time has no more power to sanctify a man than space has. Indeed, time is only a fiction by which we account for change. It is change, not time, that turns fools into wise men and sinners into saints. Or more accurately, it is Christ who does the whole thing by means of the changes He works in the heart.

Human nature is not fixed, and for this we should thank God day and night. We are still capable of change. We can become something other than what we are. By the power of the gospel the covetous man may become generous, the egotist lowly in his own eyes. The thief may learn to steal no more, the blasphemer to fill his mouth with praises unto God. But it is Christ who does it all. Time has nothing to do with it.
Many a lost man is putting off the day of salvation, vaguely hoping that time is on his side, when actually the
likelihood of his ever becoming a Christian grows less day by day. And why? Because the changes taking place in him are hardening his will and making it more and more difficult for him to repent.
“Seek ye the Lord while he may be found"...

Time can help us only if we know that it cannot help us at all. It is change we need, and only God can change us from worse to better.

(from "That incredible Christian" by A.W. Tozer)