Why Time Feels Faster as You Get Older

Ask a grandparent how the last ten years went and you may hear, “They flew by.” Ask a twelve-year-old how long the summer holidays lasted and the answer may be, “Forever.” Almost everyone has heard the idea that time speeds up as we age. Many adults say they feel it themselves.

But a common feeling is not the same as a measured fact. When psychologists have tried to pin this down, they have found something more specific, and more interesting, than “time gets faster.”

What the studies actually find

One of the first large studies asked 499 subjects, ages 14 to 94 years, a series of questions about how fast time seemed to pass. Both their momentary sense of time and their judgments of past periods were a function of chronological age, but these were small-to-moderate effects accounted for at most 10% of the variance. The authors said the results generally support the widespread perception, while warning that interpretations have to be treated with caution given methodological limitations.

A larger study in 2010 surveyed 1865 adults from two countries, ranging in age from 16 to 80. Its findings were more cautious still. Respondents of all ages reported that time seems to pass quickly, and in contrast to widely held beliefs, age differences in reports of the subjective speed of time were very small, except for the question about how fast the last 10 years had passed.

That exception has turned out to be the most reliable part of the story. A 2026 paper reviewing the research describes the faster-feeling decade in older adults as a widely replicated finding, with similar results reported in Germany, the Netherlands, New Zealand, Japan and Canada. The same paper adds two important limits. The effect is modest, with correlation coefficients typically ranging from 0.2 to 0.3 across studies, and no significant associations are observed for shorter periods, such as the previous week, month, or year.

Days versus decades

If older people felt time racing all the time, you would expect it to show up in daily life. One study tested this directly. Young and older adults received phone alerts 8 alerts per day for 5 days and, each time, rated how fast time was passing right then. The study found no difference between the young and the old participants in the judgment of passage of present time. What did matter, at any age, was mood and focus: the sense of time passing was significantly related to affective states and current activities when they captured attention.

So the best current evidence suggests something narrower than “time speeds up with age.” Older adults do not seem to feel each day or hour rushing by. They tend to feel that long stretches, like the past decade, went by quickly when they look back on them.

How the brain judges time

Scientists distinguish two ways we judge time. In prospective timing you are paying attention to time as it passes, like watching a clock while you wait for a bus. One model proposes that in this case the brain’s timing signals are only registered when attention is directed to time, which may be why a boring wait drags and a gripping film flies by. In retrospective timing you estimate a period after it is over, and the duration has to be reconstructed from memory. According to the same review, the more changing experiences we have during a certain timespan, the longer it feels afterward, and routine activity when compared with novel activity leads to the perception of shorter time intervals.

The decade question is a retrospective judgment. That is one reason many researchers look to memory for an explanation.

Competing explanations

Fewer new memories. One of the oldest ideas, going back to the psychologist William James and others, links the speed-up to a decline during adulthood in the number of memorable events that are experienced. Childhood and adolescence are full of firsts. Adult life can settle into routine, leaving fewer distinct memories to fill a year when we look back.

The 2026 study tested this with one hundred and twenty individuals aged 20–91 years. It confirmed that older participants felt the past decade had passed faster, but no significant association was found between perceived time passage over the past decade and either the number or subjective value of memories. In fact, older adults reported more vivid and meaningful recollections. What did predict a faster-feeling decade was a lower ability to form new memories as assessed through delayed memory recall. The authors suggest it may be less about how many memories we can recall and more about how much new information the brain stores along the way.

Proportion of a life. Another idea, first formulated by Paul Janet in 1877, is that we judge time relative to how long we have lived. A year is a fifth of a five-year-old’s life but a fiftieth of a fifty-year-old’s. The 2026 authors discuss a version of this idea and call it an appealing interpretation that still needs direct testing.

Time pressure and emotion. The 2010 study concluded that its findings support a theory based on the experience of time pressure, the sense of having too much to do. A 2015 survey of n = 423 participants ranging in age between 17 and 81 found that increased emotion regulation and a balanced time perspective are related to a slower passage of the last ten years. This was a correlation in a survey, so it does not show that changing either one would slow time down.

What remains uncertain

These explanations are not mutually exclusive, and none is settled. Most studies compare different people at different ages at a single moment, rather than following the same people as they grow older, so they cannot fully separate the effects of age from those of generation or life circumstances. The 2026 authors also raise a simple possibility: because the belief is so widespread, older individuals may conform to this expectation when answering surveys. And people’s estimates of how fast a decade went are, by their nature, hard to check against anything objective.

The takeaway

Time does not seem to tick faster for older people in the moment. What changes with age, modestly, is the feeling that long stretches of the past went by quickly. The leading explanations involve memory, including how much new information we encode, along with attention, emotion and how busy we feel. One interpretation, consistent with the research on routine and novelty but not tested as advice, is that a life with more new and varied experiences may feel longer when we look back on it.