9-Day Fortnight and 9/80 Schedules - A Comprehensive Guide

Here are a few examples of how this can be structured:

1. Extended Work Hours: Employees work longer hours over nine days to earn an extra day off. This could mean extending daily work hours by 45 minutes to an hour.

2. Flexible Scheduling: This pattern is adaptable to fit the organization's and the employee's needs. Options include varying the start and end times, like starting at 8 am and finishing at 6 pm with a one-hour break, which is about nine hours worked. Another approach is having a standard first week, such as working 8 hours per day, followed by a more extended second week, like 10 hours per day.

How do you calculate a 9-Day Fortnight?

Calculating a 9-Day Fortnight is relatively straightforward. Here's how you can do it:

• Determine the total full-time work hours for a standard two-week period (e.g., 80 hours for a 40-hour week).

• Divide the total hours by nine days (e.g., 80 / 9 days ≈ , 8.89 hours per day).

• Plan the work schedule over nine days within the fortnight, ensuring each day meets the calculated daily hours.

• Choose a day for the extra day off (e.g., every second Friday).

• Modify daily hours slightly to fit specific workplace requirements or agreements.

This calculation ensures the same total working hours are maintained while providing an extra day off every two weeks.

Benefits of the 9-Day Fortnight

As discussed earlier, the 9-Day Fortnight is an innovative work arrangement that benefits employees and employers, contributing to a more sustainable and productive work environment. Let's explore these benefits in detail:

For Employees

• Better work-life balance: Some employers that trialled a 9-day fortnight reported lower stress and higher life satisfaction (CharlieHR: 24% lower work-related stress, self-reported), although research on compressed schedules is mixed. In a 2019 FlexJobs survey of 7,300 workers, 80% said they would be more loyal to their employer if they had flexible work options.

• More time to rest: A longer break between work blocks leaves time for rest, medical appointments and personal errands. CharlieHR staff reported 24% lower work-related stress on a self-reported scale; research on compressed weeks and health is mixed.

• Reduce Commuting Time: The scheme cuts commuting by one day every fortnight, saving time and lowering expenses. This is significant, as the average American's one-way commute is about 27 minutes (27.2 minutes in 2024, according to the US Census Bureau).

• Focus and productivity: Some teams on a 9-day fortnight report better focus (CharlieHR staff: 11% higher self-reported focus and productivity), but research on compressed weeks is mixed. An Oxford study of British Telecom call-centre sales staff found that a one-point rise in weekly happiness (on a 0 to 10 scale) came with about 12% more sales. It measured happiness, not hours, so it does not show that a 9-day fortnight raises output.

For Employers

• Attract & Retain Talent: Implementing this schedule enhances a company's appeal in a competitive job market and helps retain current employees with its flexible work arrangement. As per the survey, nearly 68% of professionals would consider switching to a different company that offers a 9-day fortnight schedule.

• Absence: Some employers hope an extra day off every fortnight will cut stress and absence, but we found no published absence figures for the 9-day fortnight. A 2025 review of compressed weeks, mostly of shift workers on 12-hour shifts, found mixed results, and some of its studies found higher sickness absence.

• Possible cost savings: A nine-day fortnight could reduce turnover and recruitment costs if it helps keep staff; there are no published figures yet.

• Energy and commuting: If the office or site closes on the shared day off, energy use and commuting fall; if days off are staggered, they do not.

• Employee engagement: A flexible work schedule can show an employer cares about its staff's well-being and may help engagement.

9-Day Fortnight Implementation Strategies

If you are considering a 9-day fortnight (sometimes run as a compressed work week) in your workplace, here are some strategies to ensure a successful transition:

1. Annual Leave Consideration

For employees under the 9-day fortnight scheme, all leave should be recorded as usual in their annual leave documentation. The amount of leave deducted should correspond to the typical hours they would work on that specific day, in line with the established working pattern of the 9-day fortnight.

Suppose an employee working a 9-day Fortnight typically works 8.89 hours per day. If they take a day off, the leave should be recorded as 8.89 hours, reflecting their usual working hours, in line with the agreed work pattern under the 9-Day Fortnight scheme.

2. Sick Leave Policies

Sick days taken on non-working days do not count as absences. Companies need to establish fair guidelines and policies for ill leave requests.

3. Trial Basis Implementation

Implement the 9-day fortnight on a trial basis to allow employees and management to experience the new schedule and make adjustments as necessary.

During the trial, evaluate its effectiveness, address emerging issues, and continuously monitor performance and productivity. Remember that employees may need time to adjust and adapt to the new schedule.

4. Legal Restrictions

While many employees enjoy the option of working longer hours and fewer days, it's critical to ensure that they are staying energized.

Ensuring compliance with the legal restrictions on how many hours is crucial when establishing compressed workweek regulations. Limits on daily hours differ by country: Germany caps the working day at 8 hours (10 with averaging), EU rules require 11 hours' rest in every 24, and the UK and US set no general daily cap for adults. Check local law before moving to 9-hour days.

5. Free Day Allocation

Deciding how employees take their free day requires careful thought to minimize business disruptions. Different options can be considered, like having the company closed every other Friday or dividing employees into groups with alternating Fridays off. Finding a balance between business needs and employees' preferences is essential.

9-Day Fortnight Case Studies

Several organizations have run a 9-day fortnight. Otta and CharlieHR kept the usual working day and gave staff the extra day off with no change in pay; Grant Thornton Australia kept its pay and has not published how its hours work. Neither Otta nor CharlieHR compressed 80 hours into nine days, and the results are self-reported.

These case studies provide valuable insights into the practical implementation and benefits of the 9-day fortnight.

Otta

At Otta (now part of Welcome to the Jungle), the founders wanted to transcend the traditional workweek and embrace innovative well-being strategies. They started a trial of the 9-day fortnight in January 2023, announced as eight months, and made the schedule permanent after six.

Let’s have a look at the results of their employee survey:

• 100% of respondents strongly felt it boosted their life satisfaction.

• 94% were more inclined to recommend Otta as a workplace due to this schedule.

• 90% agreed or strongly agreed that their work quality remained high under this system.

CharlieHR

CharlieHR introduced a trial period for a nine-day fortnight in September 2021, where employees enjoyed every other Friday off without any negative impact on their compensation or working hours.

Charlie's implementation of the 9-day fortnight policy led to the following outcomes:

• 24% decrease in work-related stress.

• 14% increase in the team's ability to relax during their free time.

• 11% improvement in their focus and productivity levels.

• 30% enhancement in their capacity for deep, concentrated work.

• Positive effects on mental health.

Besides flexible working hours and exploration days, Charlie's nine-day fortnight was featured as a top-three reason for candidates to join the company.

FAQ’s

What Sets a 9-day fortnight Apart from a Four-Day Workweek?

The 9-day fortnight differs from a four-day workweek in its structure and impact on working hours. In a compressed 9-day fortnight, employees work their full-time hours over nine days within two weeks, with slightly longer days.

In contrast, a four-day workweek reduces both the days and the total hours, typically to about 32 to 36 a week. The compressed 9-day fortnight keeps full-time hours with an extra day off every two weeks. Some employers run the 9-day fortnight without compressing, which cuts total hours by about 10%.

Does the 9-Day Fortnight Align with Standard Full-Time Hours?

It depends on the version. A compressed 9-day fortnight keeps the standard 80 hours over two weeks (40 a week), but works them over nine days of about 8.89 hours rather than ten days of 8, with the benefit of an extra day off every two weeks. The version that keeps the usual 8-hour day works 72 hours a fortnight, which is below standard full-time hours.

How Do You Calculate 9-Day Fortnight Annual Leave?

To calculate annual leave for a 9-day fortnight, first find the total fortnightly hours (e.g., 8.89 hours/day x 9 days = 80 hours). Convert annual leave into hours (e.g., 20 days leave x 8 hours/day = 160 hours). When leave is taken, deduct the daily hours from the total leave hours: on 8.89-hour days, 160 hours covers about 18 days.

Wrapping Up

Several employers, including Otta, CharlieHR and Grant Thornton Australia, kept a 9-day fortnight after a trial. The results are self-reported and there is little published data on costs. It can work with planning: CharlieHR needed rotas for customer-facing teams, and its managers saw uneven output across the fortnight.

If you are also looking for a career path that respects your work-life balance, you may check out 4dayweek.io. We believe in the harmony of work and life. Explore our curated job listings and enter a world where professional fulfillment and personal well-being go hand in hand.