You don't have much time. No one does. Time has never been willing to be had, to be spent, - squandered.
It is and it was and it will fully be. While it is the dance of your heart that is finite. It is your breath that will one day be spent. And you will discover the depth of your squander, the extent of your last deficit, while time will continue on to its appointed complicity with eternity. And in that apt company time will run at the speed of the last light, remaining exempt from any desperate attempt to hold it in check.
But in your allotted splinter of time relish its flight and the oh so magnificent sights that life hands you for simple delights. And rather than raging against the inevitable last night you might find at last it's alright to let the last grains trickle through with a life-long, contented sigh having found time for each gifted timely good-night.