Why Some People Are Always Late, and What Optimism Has to Do With It

People who are always late are rarely lazy or rude on purpose. One of the most common reasons is a kind of optimism about time: they genuinely believe they can fit one more task into the minutes before leaving, and they underestimate how long everything takes. Psychologists call the general version of this mistake the planning fallacy. Personality, attention, habits and culture add to it, which is why chronic lateness is so hard to shake.

Here is what research and experts say about why some people run late, the different types of latecomers, and practical ways to arrive on time without losing the hopeful outlook that often comes with the habit.

How common chronic lateness is

Most of us are late now and then. Chronic lateness is different: being late for almost everything, good or bad, for years. A 2006 survey reported by Pacific Standard estimated that 15 to 20 percent of Americans are consistently late. A study led by time-management consultant Diana DeLonzor at San Francisco State University found a similar share, around 17 percent of its 225 participants.

DeLonzor knows the problem from the inside. A former chronic latecomer herself, she once said she could get up at six and still be late for work at nine. Her 2003 book, Never Be Late Again: 7 Cures for the Punctually Challenged, grew out of trying to understand why.

The optimism link: the planning fallacy

In 1979 the psychologists Daniel Kahneman and Amos Tversky described the planning fallacy: our tendency to underestimate how long our own tasks will take, even when we know that similar tasks ran over in the past. Interestingly, outside observers tend to make more realistic, even pessimistic, guesses about other people's tasks.

A well-known 1994 study by Roger Buehler and colleagues shows the size of the gap. Psychology students predicted how long they would need to finish their senior theses. On average they guessed about 34 days; even their "worst case" guesses averaged around 49 days. The real average was about 56 days, and only around 30 percent finished within their own forecast.

Chronic latecomers often apply the same thinking to the next half hour. Ten minutes to shower, five to get dressed, fifteen to drive, so there is still time to answer an email. They forget parking, traffic lights, the lift and the search for keys. Therapists sometimes call this habit "one more task syndrome".

Type B personalities and the elastic minute

Personality also seems to shape how we feel time pass. In 2001, Jeff Conte, a psychology professor at San Diego State University, sorted participants into Type A personalities (driven and competitive) and Type B personalities (more relaxed, reflective and exploratory). He then asked them to judge, without a clock, when a minute had passed.

Type A participants called time at around 58 seconds. Type B participants waited until roughly 77 seconds. In other words, for a more laid-back person, a "minute" can quietly stretch by a third. Conte also found that people who like doing several things at once, a trait psychologists call polychronicity, were more likely to arrive late for work.

DeLonzor's seven types of late people

DeLonzor's research linked lateness with procrastination, lower self-control in other areas of life, a taste for thrills and some attention difficulties. She grouped latecomers into seven types, noting that most people are a mix:

The Deadliner enjoys the adrenaline of a last-minute rush and may struggle to get going without it.
The Producer tries to cram too much into each day and underestimates how long things take, the classic optimist.
The Absent-Minded Professor is easily distracted and loses track of time or forgets appointments.
The Rationalizer blames traffic or other people and rarely admits to being late.
The Indulger has trouble with self-control more generally.
The Evader uses lateness, often unconsciously, to manage anxiety or low self-esteem, for example by avoiding awkward waiting time.
The Rebel arrives late to feel in control or to push back against authority.

Other experts add more causes. Therapist Ron Helpman, quoted by Pacific Standard, points to people-pleasing (staying on a call past the time to leave), poor sleep, learned habits from childhood, and the simple fact that getting ready is boring, so attention drifts to anything more interesting. His conclusion: "If you don't know the cause it's tough to come up with a solution." Some people who are always late also have ADHD or another condition that makes time management harder; if lateness is causing real trouble at work or home, it is worth talking to a doctor.

Is being late a sign of optimism? Myths and facts

Myth: late people do not care. Most chronic latecomers feel embarrassed and want to change. Disrespect is sometimes the effect on others, but rarely the motive.
Myth: relaxed people have no anxiety. Being easygoing about the clock does not mean being free of anxiety. DeLonzor's Evader type is late precisely because of anxiety.
Partly true: latecomers are optimists. Optimism about time is a real driver, but it is one cause among several, not a diagnosis.
Partly true: optimism is good for your health. Studies have linked dispositional optimism with better heart health, faster recovery after bypass surgery and longer life. The effects are modest, though, and partly explained by optimists' healthier habits, so optimism is a helpful trait rather than a cure.

So yes, if you are always late, there is a decent chance you are a hopeful person. That is worth keeping. The aim is to keep the hope and drop the miscalculation.

Lateness and culture

What counts as late varies a lot. In many Western settings, five to ten minutes is tolerated for a social event but not for a doctor's appointment or a job interview. Some cultures have an unspoken rule that a party advertised for nine really starts closer to ten, and some countries have run public campaigns to encourage punctuality, such as Peru's 2007 "La Hora sin Demora" campaign.

Context matters as much as country. Business meetings, trains and medical appointments usually run on strict time almost everywhere, while family dinners are more flexible. When in doubt, ask what "seven o'clock" means to your host.

How to be on time without becoming a different person

Measure, do not guess. For two weeks, write down how long you think routine tasks will take and how long they really take. Most latecomers are surprised.
Check your pattern. Organiser Julie Morgenstern suggests asking whether you are late by the same amount every time. A consistent delay hints at a psychological habit; a random one suggests a planning problem.
Aim to be early. Plan to arrive 15 minutes before the start, not exactly on time.
Bring something for the wait. A book or a podcast removes the dread of "wasted" minutes, which is what pushes many people to squeeze in one more task.
Set a leaving time, not an arrival time. Put the departure time in your calendar with an alarm.
Skip the "five minutes away" message. It feels polite but does not buy you time.
If you wait for a latecomer, skip the trick of a fake earlier start time. An honest conversation and an agreed, light-hearted consequence, such as the latecomer buying dessert, works better.