Disneyland

 

Imagine a one day trip to Disneyland.  Knowing that the park is generally open from 8am to 11pm, you would want to make sure you go to all the attractions you're interested in.  As the day progresses, there might be a little anxiety as you try to fit in all the attractions on your list.  You learn the layout and operation, and become more efficient in making your way through the park.  You want to maximize this day.  By 7pm, with four hours left, you think hard about what you want to do in the remaining time.  Disneyland is huge, and you can't possible see everything in one day.  At 11pm you'll  have some regret about the attractions you missed.

If my life was a one day visit to Disneyland, then it's 7:26pm.  Only a few hours left.  Use them well.