America Got 18% More Productive. Its Working Year Shrank by Just 14 Hours

Fourteen hours. Across 14 years, that was the reduction in the average American working year.

Between 2010 and 2024, US output per hour reportedly rose by approximately 18.1%. Average annual hours actually worked per worker slipped from 1,810 to 1,796, a decline of just 0.8%. An hour of work produced considerably more. The working year barely shortened.

South Korea offers a striking comparison. Its output per hour increased by about 44.7% over the same period, while annual hours per worker fell by 298, or 13.8%. Britain and the Netherlands recorded modest productivity gains alongside slightly longer average working years.

These four cases raise a question that gets lost when economic success is discussed only in money: when an economy becomes more productive, what determines whether people get some time back?

WHAT DOES MORE PRODUCTIVE ACTUALLY MEAN

Here, productivity means real GDP produced per hour worked across the economy. Real means adjusted for price changes. A rise, therefore, describes more economic output from an hour of labour, rather than inflation making the same output look more valuable.

Better machinery, software, skills and organisation can raise that figure. So can a shift towards industries generating more output per hour. It is an economy-wide measure, so an 18% improvement does not mean every American employee personally became 18% faster.

Greater productivity creates room for higher incomes and potentially shorter hours. How that room is used depends on decisions about pay, staffing, production and working schedules. The productivity figure alone cannot tell us which workers benefited, or in what form.

HOW DIFFERENT WERE THE FOUR PATHS

South Korea combined the strongest productivity growth among these four examples with the largest reduction in annual working time. Its average fell from 2,163 hours in 2010 to 1,865 in 2024.

In Britain, output per hour rose by approximately 5.3%, while annual hours per worker increased from 1,507 to 1,538. The Netherlands recorded roughly 4.3% higher productivity, while hours rose from 1,430 to 1,452.

The distinction is between where a country starts and where it is heading. A country can already have widespread shorter schedules and still make little further progress in reducing its average working year. Another can cut hours substantially from its own much higher starting point.

These are selected comparisons, rather than a ranking of all economies. They show that productivity growth and working-time reductions can follow markedly different paths.

WHY DOES HIGHER PRODUCTIVITY NOT AUTOMATICALLY SHORTEN WORK

Because businesses and workers can use the gain in several ways. A firm might produce more with its existing workforce and schedules. Workers might seek higher earnings to meet expenses. Employers and employees might negotiate shorter hours, or additional leave.

Law and bargaining help determine which options are available. South Korea phased in a reduction in the statutory maximum working week from 68 to 52 hours between 2018 and 2021. That provides a concrete example of policy acting directly on long working hours. It does not explain the whole 2010–2024 decline.

In the US, the federal Fair Labor Standards Act does not itself require employers to provide vacation time, paid or unpaid. Other laws and employment agreements can provide entitlements. Rising national productivity does not automatically alter those arrangements.

A shorter working year therefore requires mechanisms that change schedules or leave. Greater productive capacity makes different choices possible; it does not make those choices on anyone's behalf.

DO FEWER WORKING HOURS MEAN MORE LEISURE

They can, but the two measures are different. Annual hours average together full-time, part-time and part-year employment, including employees and the self-employed. Changes in that mix can move the average even when an individual employee's schedule stays the same.

Nor does less time in paid employment necessarily become recreation. It can become childcare, elder care, housework or study. Some people also want more paid hours than they can obtain. A fall in hours needs to be understood alongside earnings, employment opportunities and unpaid responsibilities.

That is why the US's 14-hour decline cannot be described as 14 extra hours of holiday for every worker. Equally, South Korea's 298-hour reduction is a change in the national average, rather than a leave entitlement.

COULD THE PANDEMIC BE DISTORTING THE PICTURE

Using 2024 rather than a lockdown year avoids the sharpest immediate disruption, although it does not remove every subsequent change. The pre-pandemic figures provide a useful check.

Between 2010 and 2019, US annual hours actually increased from 1,810 to 1,823. South Korea's had already fallen from 2,163 to 1,966. The divergence in working-time trends was visible before Covid.

There is also a measurement boundary: these hours data are designed to track changes within countries. Differences in national sources and calculation methods make direct league tables of hours levels unsuitable. Our comparison follows each country's own trajectory.

WHAT SHOULD WE ASK OF THE NEXT PRODUCTIVITY BOOM

Ask how it changes working lives alongside how much output it creates. That requires examining pay and job security as well as schedules, leave and the distribution of unpaid work.

The four-country comparison cannot settle whether workers received a fair share of growth. It establishes something more specific: greater output per hour has coexisted with sharply different changes in annual working time.

America's 18% productivity gain and 14-hour reduction make that distinction tangible. A more productive economy can create the capacity to work less. Turning that capacity into time people can use requires decisions beyond the technology itself.