Time flies when you're an adult. A week disappears before it's begun, a season arrives before you've settled into the one you're in, and every December you wonder where the year went. Yet a six-week school summer used to last roughly… forever.
It's not nostalgia playing tricks. The years really do feel shorter as you get older, and there are a few reasons why.
Your brain judges time by memory, not by the clock
Your brain doesn't have a clock. When you ask yourself how long the last six months felt, it doesn't consult a timer, it looks back through the record and asks: how much happened here?
The psychologist Marc Wittmann, who has spent his career on time perception, explains that how long a stretch of time feels in hindsight comes down to how much of it you remember. A period dense with memories reads as long. A period of repetition gets compressed, because your brain doesn't bother keeping duplicates. A month of identical Tuesdays takes up almost no space at all.
This is why time plays its trick in two directions at once. A dull afternoon goes slow whilst you're in it, and then vanishes from the record entirely. A week packed with new things flies past in the moment, and later reads as enormous. You are, in effect, running two clocks: one for living and one for remembering. Only the second one decides how long your year was.
Why routine makes the years feel shorter
You've probably heard the ratio explanation. A year when you're ten is a tenth of your whole life; a year at thirty is a thirtieth, so of course it feels smaller. It's true, but and it can't be the whole story. If time were just arithmetic, one strange week abroad couldn't outweigh an entire quarter at your desk in memory. But it does.
Adult life is built to be repeatable as we build routines. Same commute, same desk, same lunch, same feed, same evening shape. Repeatable is efficient, but it’s unmemorable, and your brain files unmemorable under nothing happened here. The days look similar, so the years blur.
Why childhood summers felt longer: novelty creates memory
Think about what a summer contained when you were ten. First time swimming out of your depth. First time school trip away from home. New friendships, lessons, classrooms. Almost everything was a first, and firsts get encoded in high detail because your brain treats novelty as worth keeping.
There's proof of this in your own head. When researchers ask people to recall memories from across their lives, the same pattern appears again and again: memories pile up between the ages of about ten and thirty, then thin out. Psychologists call it the reminiscence bump, and it happens because those are the years packed with firsts. Time wasn't moving slower back then - your brain was simply recording more of it. And the more it records, the longer a stretch of life feels when you look back.
Time confetti: how fragmented free time speeds up the year
It's not only that adults have fewer firsts. It's that the free time we do have arrives in short stints. Ten minutes here, six minutes there, wedged between obligations. This has been labelled as ‘time confetti’, and once you've heard the term you can't stop seeing it. Harvard's Ashley Whillans has done the maths on a single free hour and found it’s chopped into chunks of five or six minutes because of on-going to-do lists, notifications and mental load. Sociologists have also explained contaminated time, which is leisure time that’s littered with obligation leaking into it.
Confetti doesn't just feel bad in the moment. Time that arrives in six-minute scraps is too small to do anything memorable with, so it leaves no trace in the record.
How to slow down time: more firsts, fewer fragments
If you’re feeling that time is going too fast and you don’t have much memory of what’s gone by, here are a few tricks.
- Make more firsts. Novelty is the raw material of memory, so try mixing up your routines. Walk a different route. Cook a different meal. Say yes to the invitation you'd normally deflect. When choosing between the reliably good thing and the new thing, pick the first-time thing. And if you want the potent version, go hunting for awe because vastness is very hard to forget.
- Defragment your time. Condense your free time into fewer, bigger pieces. Sweep the confetti into a block: one unbroken Saturday morning will do more for your memory of the month than the same minutes scattered through it. Guard the block the way you'd guard a meeting.
- Be present. When doing both of these things, pay attention while it's happening. Memory needs attention the way film needs light. Your brain can't keep what you never noticed.
Guests tell us so often after three days offline at a cabin that the stay felt far longer than it was. Because nothing was rushed, nothing interrupted, and for once they noticed all of it. Three days, recorded in full, read like a week.
You can't make the year longer. But you can make it denser.