Americans Work Long and at Strange Times

By Daniel S. Hamermesh, Elena Stancanelli Oct 20, 2014, 4:10 PM 

American employees put in longer workweeks than Europeans. They are also more likely to work at undesirable times, such as nights and weekends. This column argues that the phenomena of long hours and strange hours are related. One possibility for this is cultural – Americans simply enjoy working at strange times. Another, more probable explanation, is the greater inequality of earnings of low-skilled workers in the US, compared to Europeans.

The facts on work hours and timing

The average US workweek is 41 hours, 3 hours longer than Britain’s and even longer than in Germany, France, Spain, or the Netherlands (see the Table below).

  • 32% of American employees work 45 or more hours, compared with 18% in Germany, and 4% in France.
  • Only in the UK does the percentage of employees putting in these long hours approach the US one.

Over a year, the average American employee puts in 1,800 hours, which is more than any other wealthy country, even Japan. What is remarkable is the change during the past three decades. In 1979, Americans looked little different from workers in these other countries, working about the same number of hours per year as the French or the British, and many fewer hours than Japanese. Since then, employees in other countries have begun to take it easier, to enjoy their riches, but Americans have not.

The picture is even bleaker than these numbers suggest. Not only do Americans work longer hours than their European counterparts, but they are much more likely to work at night and on weekends.

  • 27% of US employees perform some work between 10 p.m. and 6 a.m.
  • In France, the Netherlands, Spain, and Germany the comparable fractions are much lower. Even in the UK, only 19 % of workers are on the job at night.

Work on weekends is also more common in the US than in other rich countries, with 29% of American workers doing some work on weekends, far above Germany, France, Spain, and the Netherlands; and even in the UK only 25% of employees do some work on weekends. But despite their greater likelihood of working at these strange times, those Americans who work then put in no more hours per day than the smaller numbers of European workers who are on the job at nights and weekends.

Table 1. Characteristics of work hours in the US and elsewhere: Amounts and timing

Source: Hamermesh and Stancanelli (2014)

Why these facts matter

Weekend and night work is not attractive to most workers. Unsurprisingly, therefore, it generates, on average, higher pay per hour than work at ‘normal’ times—wage differentials that compensate for the undesirability of working at unattractive hours (Kostiuk 1990). Also unsurprisingly, it attracts workers with the least human capital. In the US and Germany, young workers, those with less education, and immigrants are more likely than other employees to work at these times. In the US, minorities are also more likely to perform weekend and night work (Hamermesh 1996). The burden of working at unpleasant times falls disproportionately on those who have the least earning power.

Are the phenomena related?

If Americans’ workweeks were shortened to European levels, would their likelihood of working at these strange times drop to European levels? Do the American labour market, institutions, and culture make night and weekend work more prevalent independent of the length of the workweek?

To answer the titular question of this section, we examine the determinants of the probability of night work using data from various time-diary surveys for the US and France, Germany, the Netherlands, Spain, and the UK. For the US, we relate these probabilities to workers’ weekly work-hours and a large number of their demographic characteristics—age, immigrant and urban status, educational attainment, and others.

  • Compared to those working 40 hours, American employees putting in 65+ hours per week are 44% more likely also to work on weekends, and 37% more likely to work at night. The phenomena of long hours and strange hours are related.

If we simulate what would happen to the probabilities of weekend and night work if the US had the same distributions of weekly work-hours as each of the 5 European countries, not surprisingly, those probabilities would drop — but not very much. Even with France’s short workweeks, 25% of American employees would still be working on weekends, as high as the highest percentage in any of these 5 countries; and 22% would still be working at night, well above even the highest percentage in Europe. Even if no American worked more than 45 hours per week, the percentage performing weekend work would fall only to 24, and the percentage doing night work would fall only to 25.

Even with a reduction in American workweeks that lowered American work-hours down to European hours, Americans would be doing more night and weekend work than Europeans. Looking at time-diary data from the mid-1970s, this result should not be surprising. For example, at that time 26% of American employees worked on weekends, whereas only 14% of Dutch employees did so, both about the same as today, even though the Dutch and American workweeks were then much closer in length than they are today.

Why, and what to do (if anything)?

Why are Americans so much more likely to work at strange times than Europeans? The results here show that it is not because Americans work more than Europeans.

  • One cause might be the greater inequality of earnings in the US that induces low-skilled workers — earning relatively less than low-skilled Europeans — to desire more work at times that pays a wage premium.
  • Another possibility is cultural, so that Americans just enjoy working at these times more than their European counterparts. But citing cultural differences is an easy way to avoid thinking or doing anything about an issue.

Many European countries impose penalties on work at nights and on weekends, with some of the penalties being quite severe (Cardoso et al. 2012). The evidence in Cardoso et al. (2012) suggests that imposing penalties on night and/or weekend work will reduce its incidence. Work at different times of the week is substitutable, and employers are responsive to changing incentives to alter the timing of work. But that evidence also shows that even substantial incentives do not produce huge changes in work timing. If we really want to reduce the amount of work that occurs at times that are viewed as unpleasant, the solution may be to revert to the shop-closing laws (Blue Laws) that prevailed in the US years ago. No free-marketer would like this, but it may well be worth reviving these laws in order to get the US out of what might be a low-level, rat-race equilibrium.


•Cardoso, A R, D Hamermesh and J Varejão (2012), “The Timing of Labor Demand,” Annals of Economics and Statistics, 105/106, 15-34.
•Hamermesh, D (1996), Workdays, Workhours and Work Schedules: Evidence for the United States and Germany, Kalamazoo, MI: The W.E. Upjohn Institute.
•Hamermesh, D and E Stancanelli (2014), “Long Workweeks and Strange Hours,” National Bureau of Economic Research, Working Paper No. 20449.
•Kostiuk, P (1990), “Compensating Differentials for Shift Work,” Journal of Political Economy, 98(3), 1054-75.

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