How To Save Valuable Time?

Often heard and read, time never comes back. Save time! Don't waste your time! Value for time! But, how? Very small question, but little difficult to answer. Don't worry, I won't take much of your time. Bcoz for me, time is actually precious. I always try not to let it go, for something that doesn't deserve.
How can we measure the worth of time? There is no measuring unit for the same. Just that, if you get anything more valuable than time, just leave the discussion here.
I have seen the best and worst of life, all in the same birth. Trust me, it is difficult to digest happiness and tears, equally. But, what about the time which is going useless and could have been used in the better shape ; if thought earlier. Not for me, not for you, but for everyone - time is the same. However, it depends upon the person who's facing the time. How he handles it and chooses something else rather than time.
You must be thinking that, why to stress so much about time? But this is the right moment to think about it. Before we actually lose our precious time in worthless things. I could only realize the value of time, after wasting a lot of duration already. But now, when I have understood the worth of the time. I keep trying to make the best possible use of the time. Irony is that I can't control my situation or the dependency upon other people, who contributes to the wastage of my time.
Like :- waiting for my case to be called in the court for taking another date, as my advocate is not available. Keep waiting for years, so that I can get rid of my better half ; even when he knows that there is nothing left in our relationship. Waiting for my kid's re-admission to the same school, after his name has been struck off. Knowing that I have to clear the dues of the fees, even when his father is liable to make the payment. And he keep on postponing the matter, just to harass me mentally and emotionally.
Waiting for meeting with the Inquiry Officer of my case in the women's cell, even after knowing that she is not going to do anything post the orders of the DCP.  Uncertainly passing the days to achieve the better tomorrow, even when I can do everything today also. Just because I have to wait again for the person to leave my house, whom I can't live with anymore.
Not only with me, but for majority of the people in the world. Time is very important, however they cannot control the situations that lead to drain the precious element of the nature. Is there any way, to at least make the best use of the most valuable asset in life? Can we ever get the real worth of the incomparable wealth of this world? Maybe, it completely depends upon us as an individual who is responsible for running everything in the surroundings.
People waiting for a job interview in the waiting lounge, even if the vacancy is being already provided to someone. However, just for the satisfaction of the industry ; the whole set up is shown. Isn't it possible that everyone can respect another person's time? Can we try to get the things done before time? Can't we leave home early, so that we can reach on time? Can we start working on time, rather than waiting for the last hour of everything?
If we need to change the system, we have to start working in the direction of improvement ; first of all. When we want other people to value our time, we need to value theirs. Since we cannot expect anything from the world, that we can't offer in return. If you can simply make a step for the same, I will feel greatful to you for giving me worth of my time.....