The 4/10 Work Schedule: A Complete Guide

The 4/10 schedule is a common request from employees, and for good reason: it hands everyone a three-day weekend without cutting a single hour of pay. When I first considered it, the appeal was obvious. What nearly tripped me up was less obvious: in some states a 4/10 schedule quietly generates overtime on every shift unless you take a specific legal step first. This guide covers both the appeal and that trap.

A 4/10 schedule means working four 10-hour days instead of five 8-hour days: same 40 hours, same pay, one extra day off. It is simple in concept, and for many businesses it works beautifully. But the overtime mechanics are where employers get into trouble, especially in California. I wrote this for the small business owner or office manager making the call without an HR team, so those mechanics sit front and center.

Below you will find what a 4/10 schedule is, how it works with sample layouts, an honest look at the pros and cons, the federal and state overtime rules that determine whether it costs you extra, the specific California requirement, how it compares to the 9/80 and 3/12, and a step-by-step way to implement it.

I built FirstHR to keep the written policy and every signed acknowledgment in one place, because a compressed schedule only saves money if the overtime and records behind it are handled correctly. This article is general information, not legal advice, so confirm current state rules with counsel for your situation.

What Is a 4/10 Work Schedule?

A 4/10 work schedule is a compressed work schedule in which an employee works four 10-hour days each week instead of the standard five 8-hour days, for the same total of 40 hours, with three days off. The name comes directly from the structure: four days, ten hours each. It is written various ways, including 4x10, 4-10, and four 10s, but they all mean the identical arrangement.

What defines a compressed schedule like the 4/10 is that it rearranges hours rather than reducing them. This is not a four-day workweek in the sense of working fewer total hours; it is a full 40-hour week packed into four days. Employees earn the same pay for the same hours; they simply work longer days in exchange for a third day off. That distinction matters for pay, overtime, and how you communicate the schedule to your team.

Four-day arrangements are gaining ground, but adoption is still narrow. According to the SHRM 2026 Employee Benefits Survey, 10 percent of US employers offer a four-day workweek, up 2 points on the prior year, against 57 percent offering hybrid work and 45 percent offering flextime during core business hours.

The 4/10 sits next to those options rather than inside them. It delivers the extra day off that a four-day workweek promises without cutting hours or pay, and SHRM tracks compressed workweeks, the family the 4/10 belongs to, as a separate benefit from the four-day week.

How a 4/10 Schedule Works

In its simplest form, a 4/10 schedule has everyone work Monday through Thursday, ten hours a day, with Friday, Saturday, and Sunday off. But the off day does not have to be Friday, and for many businesses it should not be, because coverage needs shape which day makes sense to close or stagger.

The most common layout is the one above: four consecutive days on, then a three-day weekend. This works well for businesses that can simply close on the extra day, or where a Friday or Monday closure does not hurt operations. It is the cleanest version and the easiest to administer, since everyone is on the same schedule.

Where a business needs coverage five or more days a week, the answer is a staggered 4/10. You split the team so different people take different days off, keeping the business covered throughout the week while each individual still works only four days.

In a simple staggered version, half the team works Monday through Thursday and the other half Tuesday through Friday, covering all five weekdays with everyone on a 4/10. Staggering takes more planning but preserves full coverage, and it is how many customer-facing businesses run a compressed schedule.

The Pros and Cons

A 4/10 schedule has real advantages and real drawbacks, and whether it fits depends on your operation and your team. Seeing both sides clearly, split by who they affect, helps you make an honest decision rather than adopting it because it sounds appealing.

On the employee side, the three-day weekend is the headline benefit, and it is a powerful one for morale, rest, and work-life balance. The main cost is the length of the day: ten hours plus a commute is long, and it does not suit everyone, particularly people with young children. A 4/10 therefore works best when it is optional or offered to the roles and people it genuinely fits, rather than imposed on everyone.

On the employer side, the schedule can extend your daily coverage window, help attract and keep staff, and sometimes cut overhead by closing an extra day. The drawbacks are coverage gaps if the whole team is off the same day, which staggering solves, and the overtime complexity in daily-overtime states, which the next sections address. For customer-facing businesses where clients expect five-day availability, a 4/10 requires careful coverage design to avoid frustrating customers.

The Overtime Rules: Federal First

This is the section that matters most for staying compliant, and the good news for most of the country is that a standard 4/10 schedule does not create overtime under federal law. The reason is a simple but crucial fact about how the Fair Labor Standards Act (FLSA) works.

In most states, a 4/10 is clean: your non-exempt employees work four 10-hour days, hit exactly 40 hours, and no overtime is owed. The long days do not matter federally, because federal law only cares about the weekly total.

That weekly-only standard is what makes the 4/10 attractive and practical for the majority of US employers, with no overtime cost. The important exception is the set of states that impose their own daily overtime rules, which is where the picture changes.

State Daily Overtime Rules

While federal law has no daily overtime, several states do, and in those states a 4/10 schedule can generate overtime on every shift unless a specific exception applies. Getting this wrong means owing back overtime, potentially for years. The rules vary by state, so you must check the specific state where your employees work.

The takeaway from the table is that the answer depends heavily on your state. In most states, following the federal weekly standard, a 4/10 creates no overtime. Colorado starts daily overtime only past 12 hours in a single day or 12 consecutive hours under COMPS Order #40 (the Colorado Overtime and Minimum Pay Standards Order), so a 10-hour day is fine there.

Nevada and Alaska both give a 4/10 an explicit route through. Under the Nevada Revised Statutes (NRS 608.018), the state exempts a schedule of 10 hours a day over 4 calendar days in a scheduled week where the employee agrees to it, and its daily overtime rule only reaches employees paid less than 1.5 times the state minimum wage in the first place.

Alaska runs the same idea through a filing. A Voluntary Flexible Work Hour Plan covers up to 10 hours a day without daily overtime, but the employee has to choose it freely rather than as a condition of employment, and the employer has to submit the plan to the state for approval.

California is the biggest exception: a 4/10 there requires a specific formal process to avoid daily overtime, covered next. Because these rules change and have nuances, always confirm the current rule in your state before implementing.

The California Exception: Alternative Workweek Schedules

California deserves its own section because it is where a 4/10 schedule most often goes wrong, and the stakes are high. California requires overtime after 8 hours in a day, so without a specific legal mechanism, a 4/10 schedule generates 2 hours of daily overtime on every single shift, turning a cost-neutral schedule into an expensive one and, if unpaid, a serious liability.

The mechanism that lets a California employer run a 4/10 without that daily overtime is a formal Alternative Workweek Schedule, or AWS, under California Labor Code section 511.

An AWS is not something an employer can simply declare; it requires a specific process, and skipping any step makes the schedule invalid. When valid, an AWS lets employees work a regular schedule of up to 10 hours a day, within a 40-hour week, at straight time.

The employer first puts the proposed schedule in writing and holds at least one informational meeting for affected employees at least 14 days before the vote. Then the affected employees vote by secret ballot, and at least two-thirds must approve for the schedule to be adopted (Labor Code section 511).

Reporting and timing close out the process. Under Labor Code section 511(e), the employer reports the election results to the Division of Labor Standards Enforcement, the office of the California Labor Commissioner, within 30 days after they are final.

California wage orders, the Industrial Welfare Commission (IWC) rules that set pay and hours by industry, also make the filed election report a public document. Affected employees may not be required to work the new hours for at least 30 days after the final results are announced (IWC Wage Order 4), so the schedule does not start the week of the vote.

Pay under a valid AWS follows the same wage orders. On a 4/10, hours 9 and 10 of a scheduled day are straight time. Time and a half covers hours 11 and 12 and hours past 40 in the week.

Unscheduled days, meaning days outside the regular schedule, work differently: the first 8 hours worked are paid at time and a half, and hours past 8 are double time. Double time also covers hours past 12 on any day (California Department of Industrial Relations).

The cost of getting it wrong is steep. If a California employer runs a 4/10 without a valid AWS, the schedule is invalid, and daily overtime applies to all hours worked beyond eight, retroactively: three years back under the Labor Code, and four under the state Unfair Competition Law (Cortez v. Purolator, California Supreme Court, 2000).

Unpaid overtime owed to employees who have since left can also draw waiting-time penalties, and long days carry their own meal and rest period rules either way. Getting the AWS wrong is exactly the kind of expensive, avoidable mistake a small business without an HR team is most likely to make, so a California employer should check this requirement first, before adopting a 4/10.

4/10 vs 9/80 vs 3/12

The 4/10 is one of several compressed schedules, and it helps to see how it compares to the two other common ones: the 9/80 and the 3/12. Each compresses hours differently, with different tradeoffs, and the right choice depends on your operation and your team.

The practical differences come down to day length and rhythm. The 4/10 gives the most consistent benefit, a three-day weekend every single week, at the cost of 10-hour days. The 9/80 schedule keeps days shorter, at nine hours, and gives a day off every other week rather than every week, but it carries a specific overtime trap in how the workweek must be defined.

The 3/12, common in healthcare, uses long 12-hour shifts to cover around-the-clock operations with fewer handoffs. That makes it a fit for continuous operations rather than a typical small business.

For a small business, the 4/10 is often the simplest compressed schedule to adopt and explain, especially if you can close on the extra day or stagger coverage cleanly. The 9/80 suits teams that find 10-hour days too long but still want a recurring day off. Matching the schedule to your actual operation, rather than picking the one that sounds best, is what makes a compressed schedule work.

How to Implement a 4/10 Schedule

Moving to a 4/10 schedule takes six steps, and it is straightforward if you take them in order. The goal is to confirm it fits, get the compliance right before you start, and roll it out in a way you can adjust. Here is a practical sequence for a small business.

The two steps that most distinguish a smooth rollout from a painful one are checking state overtime rules early and running a pilot. Checking the overtime rules, especially the California AWS requirement, prevents the retroactive back-pay disaster that catches unprepared employers. Running a pilot lets you find the coverage and fatigue issues while they are still easy to fix, rather than after you have committed permanently.

Documentation is what holds the schedule together after the pilot ends. Writing the policy down clearly, including in your employee handbook, keeps everyone aligned on the day-length and time-off rules, and onboarding new hires directly onto the schedule keeps it consistent as you grow.

Frequently Asked Questions