It’s one of the ultimate ironies of life–when you’re young, you’re often dying for time to pass so you can get older or summer vacation can finally arrive; when you’re older, time seems to fly, and you’d give nearly anything for the hours you so carelessly rushed through as a child.

Your clock may tell you that time passes at a constant speed, but both subjective reality and psychology prove that’s nonsense. Turns out that time feels slower when you’re learning and experiencing new things, hence that sense of sluggish hours experienced by kids, who are new to everything. Once your life is full of routine and busyness (a period where you could really use a 25th hour), it becomes harder to reclaim that feeling of long days.

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