Four-Day Work Week: Definition, Models, Schedules, and Results

A four-day work week is a full-time schedule spread across four days instead of five. The phrase covers two different arrangements that get conflated constantly: the compressed workweek, where employees still work about 40 hours in four longer days, and the reduced-hours week, where employees work around 32 hours for the same pay. Which one an employer means changes the cost, the legal questions, and the results.

What Is a Four-Day Work Week?

The simplest definition is a schedule with four working days and three days off every week for a full-time employee. Beyond that, the term splits.

The compressed workweek keeps the hours and removes a day. The standard version is four 10-hour days, the 4/10 schedule. A close cousin is the 9/80 schedule, which produces one extra day off every two weeks. Pay, output, and staffing math are unchanged; each day is simply longer. Compressed weeks have been common in nursing, manufacturing, public safety, and utilities for decades.

The reduced-hours week cuts working time, usually to 32 hours, and holds pay constant. This is the version behind the recent wave of pilots and press coverage. The organizers of the largest trials describe the goal as the 100-80-100 model: 100 percent of pay for 80 percent of the time in exchange for 100 percent of the output (4 Day Week Global). The bet is that the fifth day was already partly absorbed by low-value meetings, context switching, and fatigue, and that a firm can redesign work to recover it.

A third, less discussed variant is the four-day week with reduced pay, which is just part-time work with a different label.

Compressed vs Reduced: A Side-by-Side

Feature	Compressed week (4 x 10)	Reduced-hours week (4 x 8)
Weekly hours	40	32
Pay	Unchanged	Unchanged (in the 100-80-100 model)
Daily hours	10	8
Labor cost per hour	Unchanged	Up 25 percent unless output holds
Coverage effect	Longer daily coverage, one fewer day per person	Fewer hours to cover per person
Daily overtime states	10-hour days trigger daily overtime in California, Alaska, Nevada, and Colorado unless an exception applies	No daily overtime issue
Best evidence	Decades of use in shift-based industries	Multi-company pilots since 2022

The compressed week is a scheduling decision. The reduced week is a productivity bet. Employers evaluating "a four-day week" should decide which one they mean before modeling anything.

What the Pilots Reported

The best-known results come from coordinated trials run by 4 Day Week Global with academic partners, in which participating companies moved to a reduced-hours week for six months and reported metrics before and after. From the organizers' published summaries:

• The UK trial page reports "92% of businesses plan to continue," a "71% decrease in employee burnout," and a "57% decrease in attrition rate" among participants (UK pilot results).
• The long-term follow-up of US and Ireland participants, measured 12 months after launch, reports a 69 percent reduction in burnout, a 32 percent decrease in attrition, a 15 percent revenue increase over the trial, and that 95 percent of employees want to continue (long-term pilot results).

Two cautions apply. The figures are self-reported by companies that chose to join a trial run by an advocacy organization, so the sample is firms that expected it to work. And the participants skew toward small professional services, marketing, software, and nonprofit organizations, where output is hard to measure by the hour and a fifth day of meetings is easy to cut. The evidence for queue-based or production work is far thinner.

Example Four-Day Schedules

Compressed, whole team off Friday. Everyone works Monday to Thursday, 7 a.m. to 5:30 p.m. with a 30-minute lunch. Simple to run; the office is closed Fridays. Customers get no coverage one weekday.

Compressed, staggered. Half the team takes Monday off, half takes Friday. Coverage runs five days at reduced depth on Mondays and Fridays. This is the common pattern for support and operations teams.

Reduced, fixed day off. Everyone works Monday to Thursday, 9 a.m. to 5:30 p.m. Total 32 hours. Requires the productivity redesign to hold.

Reduced, rotating day off. A 20-person support desk keeps five-day coverage by rotating the off day: four groups of five, each with a different weekday off. Each interval has 16 agents instead of 20, so the staffing plan must absorb a 20 percent reduction in available hours through lower shrinkage, better schedule adherence, or more efficient handling.

Group	Mon	Tue	Wed	Thu	Fri
A (5 agents)	Off	Work	Work	Work	Work
B (5 agents)	Work	Off	Work	Work	Work
C (5 agents)	Work	Work	Off	Work	Work
D (5 agents)	Work	Work	Work	Work	Off
Agents available	15	15	15	20	15

The table shows the first problem a queue-based team hits: Thursday is overstaffed and every other day is short unless a fifth rotation covers Thursday.

Legal Points for US Employers

The FLSA sets no maximum on daily hours for adults and requires overtime only after 40 hours in a workweek, so a 4 x 10 schedule creates no federal overtime by itself. State law is where the compressed week gets complicated. California requires daily overtime after 8 hours unless the employer adopts an alternative workweek schedule through a formal employee election; Nevada requires daily overtime after 8 hours for employees earning under a wage threshold unless a 4 x 10 agreement is in place; Alaska and Colorado have daily rules of their own. The state labor law guides cover each one. A reduced 4 x 8 week avoids all of that, since no day exceeds 8 hours.

Salaried exempt employees can move to either model without pay changes. For non-exempt hourly staff, a reduced week at full pay means either raising the hourly rate by 25 percent or paying a fixed weekly salary for a 32-hour schedule, and either choice should be documented.

The Four-Day Week in Contact Centers and Remote Teams

Remote knowledge teams are the natural home of the reduced-hours model. A 14-person distributed marketing agency runs a six-month pilot: Fridays off, 32 hours, full pay, with a rule that internal meetings drop to a maximum of four hours per week and client deadlines are unchanged. The agency tracks billable hours per employee before and after. If billable output per person holds at the prior level, the pilot pays for itself; if it falls 20 percent, the agency has cut its capacity by a fifth. The point is that the answer comes from the timesheet data, not the survey.

Contact centers face the harder version. A 60-seat BPO cannot remove 20 percent of available agent hours without either hiring 15 more agents or accepting worse service level. The realistic contact center options are the staggered compressed week, which keeps hours and adds daily coverage depth, or a reduced week funded by measurable gains in occupancy rate and shrinkage. Some BPOs offer a compressed schedule as a retention tool for tenured agents while new hires stay on five days, which reduces attrition without changing total hours.

How to Track a Four-Day Week

Either model raises the same measurement question: did output per hour change? That requires hours and work in the same dataset. HiveDesk tracks time from desktop, mobile, and browser apps, groups it by project or client, and produces timesheets that show hours per day and per week, which matters for daily overtime under a compressed schedule and for verifying that a 32-hour week is actually 32 hours. Shift schedules show who is on and off each day, attendance reports catch coverage gaps, and optional screenshot-based activity monitoring gives remote managers a view of whether the shorter week is being worked as designed. It costs $5 per user per month with all features included, and the 14-day free trial does not need a credit card.

Related Terms

• Flextime: flexible start and end times without changing days
• Workweek: the seven-day period that overtime is measured on
• Rotating shift: patterns used to keep coverage under a staggered week
• Shrinkage: the planning figure that decides whether a reduced week fits a queue
• Utilization rate: billable hours as a share of available hours, the key pilot metric for agencies
• The 2-2-3 schedule: a 12-hour rotation that averages under four days per week

Frequently Asked Questions

Is a four-day work week 32 or 40 hours?

Both exist. A compressed four-day week is typically four 10-hour days, which is 40 hours. A reduced four-day week, the version used in most recent pilots, is around 32 hours at full pay. Ask which one is being proposed.

Is the US moving to a four-day work week?

No law requires it, and bills to lower the FLSA overtime threshold from 40 to 32 hours have been introduced but not passed as of September 2026. Adoption is happening company by company, mostly in professional services and technology.

Do employees get paid the same on a four-day week?

Under the compressed model, yes, because hours are unchanged. Under the 100-80-100 reduced model, yes by design. Under a reduced-pay four-day week, no, and that arrangement is part-time work under another name.

What are the drawbacks of a four-day week?

For compressed weeks: 10-hour days are tiring, daily overtime rules apply in some states, and childcare often does not fit. For reduced weeks: coverage roles cannot cut hours without replacement staffing, output may not hold, and customers may expect five-day availability.

Which countries have a four-day work week?

None mandates it nationally. Belgium gives employees the right to request a compressed four-day week at full hours. Iceland, the UK, the US, Ireland, Germany, and others have run trials, mostly voluntary and organized by advocacy groups or governments, without changing statutory hours.

Can a call center run a four-day week?

Yes, most easily as a staggered compressed week that keeps 40 hours per agent and lengthens daily coverage. A reduced-hours week in a queue environment needs the lost 20 percent of hours to be recovered through better shrinkage and occupancy or through additional headcount.

Browse more definitions in the HiveDesk glossary.