Time is said to be eternal. It is said that it has neither a beginning nor an end. Past, present and future. True, time has a meaning. What was yesterday is not today. What is today will not be tomorrow. Yesterday is gone. Today is and tomorrow is yet to come. Yet time is said to have no holiday. It exists always.
The time was lost, and it cannot be taken back. Even if you are trying to do, as did, but in the end, when it didn't come back is not a substitute for what we have lost.