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The 40 hour workweek
Sophia Lee, author

Sophia Lee

Writer, Culture Amp

A 40-hour work week (or workweek) is the accepted standard in today’s workplace. But where did this concept originate? And is it the most effective model for productivity and employee engagement? Fortunately, a growing amount of information is being made available on this topic.

In this article, we map out the evolution of the 40-hour work week and share key research findings regarding the efficiency of this approach.

The history of the 40-hour work week

Believe it or not, the makings of the 40-hour work week started in the 19th century. Below is a timeline of the key dates that led to the work standards we’re familiar with today.

  • 1817: After the Industrial Revolution, activists, and labor union groups advocated for better working conditions. People were working 80 to 100-hour weeks during this time.
  • 1866: The National Labor Union, comprised of skilled and unskilled workers, farmers, and reformers, asked Congress to pass a law mandating the eight-hour workday. While the law wasn’t passed, it increased public support for the change.
  • 1869: President Ulysses S. Grant issued a proclamation to guarantee eight-hour workdays for government employees. Grant's decision encouraged private-sector workers to push for the same rights.
  • 1886: The Illinois Legislature passed a law mandating eight-hour workdays. Many employers refused to cooperate, which led to a massive worker strike in Chicago, where there was a bomb that killed at least 12 people. The aftermath is known as the Haymarket Riot and is now commemorated on May 1 as a public holiday in many countries.
  • 1926: Henry Ford popularized the 40-hour work week after he discovered through his research that working more yielded only a small increase in productivity that lasted a short period of time. Ford announced he would pay each worker $5 per eight-hour day, which was nearly double what the average auto worker was making that time. Manufacturers and companies soon followed Henry Ford’s lead after seeing how this new policy boosted productivity and fostered loyalty and pride among Ford’s employees.
  • 1938: Congress passed the Fair Labor Standards Act, which required employers to pay overtime to all employees who worked more than 44 hours a week. They amended the act two years later to reduce the work week to 40 hours.
  • 1940: The 40-hour work week became U.S. law.
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Are 40-hour work weeks effective?

Now that we know the origin of 40-hour work weeks, the natural follow-up question is: are they effective? To answer this, it’s important to understand how people use those eight-hour workdays. According to a past survey from AtTask, this is a general breakdown of how employees spend their time at work: 

  • 45% = primary job duties
  • 40% = meetings, administrative tasks, and "interruptions"
  • 14% = email

These numbers show that the general employee population is far from achieving 100% productivity - which isn’t necessarily bad. Research shows that brief diversions can be good for creativity and focus. Let’s look at additional evidence around the pros and cons of the 40-hour work week. 

Pros and cons of the 40-hour work week

The case for 40-hour work weeks

One thing we can say with certainty is that working more than eight hours a day is actively detrimental for both employees and employers alike. Many studies have been conducted on the negative implications of overwork. All show that people who regularly work overtime are less healthy, more likely to make mistakes, and less productive than those who work 40 hours per week. So, we can say that an 8-hour day is better than working a more-than-8-hour day.

The case against 40-hour work weeks

However, there are certainly downsides when it comes to 40-hour work weeks.

The biggest is that many employees work more than 40 hours a week despite the fact their companies (or the law) specify a 40-hour work week. For instance, Americans work an average of seven extra hours a week. Since modern technology has enabled employees to access their work anywhere – whether via their cell phones or laptops – employees can easily stay plugged in even after they leave the office. This struggle to disconnect is precisely why the French government recently passed a law requiring companies with more than 50 employees to establish “off-limits” email hours. However, In some companies, this behavior is encouraged or expected.

On the flip side, we should also consider that 40 hours may be too many hours to begin with. Data from the Organization for Economic Cooperation and Development found that countries with the highest average number of working hours were some of the least productive. Luxembourg, the most productive country, had an average work week of 29 hours.

40-hour work week alternatives

While it’s up in the air whether or not the 40-hour work week is the optimal structure for employees, it’s clear that companies are becoming increasingly open to experimenting with other options. Below are three alternatives to the 40-hour work week to consider and the benefits and drawbacks of each one.


Flextime is all about allowing employees to design their own work schedules. This includes everything from letting people determine the start and end time for their workdays to offering remote work or telecommuting options. A study from SHRM found that 57% of employers currently allow for flextime, and 62% allow for some telecommuting –  so it’s a popular option among companies.


  • Truly customized. Having a one-size-fits-all schedule is very challenging, given that every employee has different priorities, interests, and time commitments. Flextime is great because it can be customized to the needs of the individual – whether that’s allowing early risers to start their day at 7 a.m. or giving parents the peace of mind to head out early to pick up their children from school.
  • Work-life balance. Flextime encourages work-life balance by allowing employees to carve out time to care for themselves outside the office, such as attending doctor’s appointments or fitness classes. The most significant benefit is they can do this without worrying about being away from their desks for too long.


  • Scheduling conflicts. There’s the potential that your team will have difficulty booking meetings with one another if everyone’s schedules are too diverse. However, you can manage this challenge by setting soft boundaries to ensure your employees are in the office simultaneously for at least a few hours daily.
  • Trickier management. Another factor to consider is that it may be more challenging to understand what your employees are working on since your schedules may not allow you to pop over to each other’s desks for quick updates. Also, having employees who are frequently remote requires extra thoughtfulness to make sure they feel included. This can be remedied with strong communication and optimized one-on-one meetings.  

Compressed work week

A compressed work week consists of four 10-hour days. While there hasn’t been as much research conducted on this option compared to flex time, it’s certainly an alternative that has the potential to grow in popularity as employees look for various work structures to choose from. 


  • Three-day weekends. Everyone has probably dreamed of a three-day weekend, and the compressed work week makes this a reality. Employees will be able to take a full day off during each work week while still preserving their full-time income.
  • Less commute time. Going to work only four days a week is also good news for the environment. That’s 20% less of a commute, significantly reducing emissions from employees driving to work.


  • Exhaustion. 10-hour days are long. For some employees, the extra two hours can be mentally and physically exhausting, hindering productivity and lowering the quality of work. This can ultimately be detrimental to both the business and the individual.
  • Difficult schedules. Working from 8:30 am to 6:30 pm can be prohibitive for employees who have after-work obligations, such as caring for children, elder relatives, or pets. It also leaves little time for activities and chores, such as cooking meals, grocery shopping, or exercising.  

32-hour work week

The 32-hour work week also only consists of four days. However, they are the standard 8-hour days instead of 10-hour days. Some companies have already experimented with this format, with some seeing great results and others not so much.


  • Best of both worlds. This alternative contains the best of both worlds since it has the benefit of a three-day weekend without extended days. It’s likely to boost work-life balance and happiness levels for employees.    
  • Improved productivity. One of the arguments for the 32-hour work week is that employees are more likely to manage their time better since they know they don’t have the extra day. This can improve productivity and focused work.


  • Not enough time. For some employees and companies, 32 hours is not enough to complete the necessary work. If this is the case, not being able to work five days a week could cause even more stress and time pressure.
  • Challenging for customer-focused industries. The 32-hour workweek may be difficult to implement for customer-focused industries or roles like real estate, sales, or partnerships. Since 32-hour work weeks aren’t a widely accepted format, taking away a day of customer service may even be a business disadvantage – especially if other competitors aren't adopting the 32-hour work week too.

Put your people and culture first

It’s exciting to live in an era where more and more companies are testing standard workplace structures and offering their employees flexible options. Remember, at the end of the day, your decision should be about what best aligns with your organization's needs and values.

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