Definition · HR operations and employee relations
Flexible Work
Definition
Flexible work is any arrangement that changes when, where or how much an employee works compared with a standard fixed schedule. Flexible work arrangements include flextime, compressed workweeks, four-day weeks, part-time hours, job sharing, shift choice and hybrid or remote work. Each has different pay, overtime and operational effects.
Also called: Flexible work arrangements, Flexible working, Flex work, Alternative work schedules
Types of flexible work arrangements
- Flextime: employees choose start and end times within limits, usually around core hours such as 10 am to 3 pm.
- Compressed workweek: full-time hours in fewer days. The 4/10 (four 10-hour days) and the 9/80 (80 hours over nine days in two weeks, with every other Friday off) are the most common.
- Four-day workweek: reduced hours (often 32) at the same pay, usually tied to productivity goals. Different from a compressed week, which keeps 40 hours.
- Part-time and reduced hours: fewer hours with pro-rated pay and sometimes benefits.
- Job sharing: two part-time employees share one full-time role and its responsibilities.
- Shift choice and self-scheduling: hourly employees pick or swap shifts within rules. Common in healthcare, retail and contact centers.
- Location flexibility: hybrid work or fully remote arrangements.
- Phased retirement or return: reduced schedules for people near retirement or returning from leave.
Overtime rules that catch compressed schedules
Under the FLSA, overtime for non-exempt employees is based on hours over 40 in a fixed, recurring workweek of 168 hours. Daily hours do not matter federally, so a 4/10 schedule creates no federal overtime.
The 9/80 is trickier. The two-week cycle has one week of 44 hours and one week of 36. To avoid overtime on the 44-hour week, the employer must define the workweek to start halfway through the alternating Friday, so that four of those hours fall into each workweek. Get the workweek definition wrong and every non-exempt employee on a 9/80 is owed four hours of overtime every two weeks.
State law adds more. California requires daily overtime after 8 hours, so a 4/10 or 9/80 schedule for non-exempt employees needs a valid alternative workweek schedule adopted through a secret-ballot election of affected employees and registered with the state. Alaska and Nevada also have daily overtime rules with exceptions. Rules vary by state, so check before you offer compressed schedules to hourly staff.
Flexible work outside the US
Several countries give employees a legal right to request flexible working. In the UK, employees have had the right to request flexible working from their first day of employment since April 2024, and employers must consult and respond within two months, refusing only for specified business reasons. Australia's Fair Work Act gives certain employees, such as parents and carers, a right to request flexible arrangements. Across the EU, the Work-Life Balance Directive requires member states to give parents and carers a right to request flexible arrangements. Requirements differ by country.
Flexibility for hourly and frontline workers
Flexible work is often discussed as an office perk, but frontline workers value it at least as much, in a different form: predictable schedules, the ability to swap shifts easily, choice of shift length and the option to pick up extra hours. In high-volume hiring, offering shift choice is one of the strongest levers on applicant volume. Part-time evening shifts in a contact center, for example, attract students and parents who would never apply to a fixed 9-to-6 role.
The trade-off is complexity. More shift options mean harder shift scheduling, and self-scheduling can leave unpopular shifts uncovered. Most operations set guardrails: minimum weekend coverage, seniority or performance-based pick order, and a bonus or differential for hard-to-fill shifts.
Setting up a flexible work policy
- Define each arrangement you offer and the roles eligible for it.
- Set a request and approval process with a response time.
- Decide how requests are judged (business needs, coverage, performance) and apply those criteria consistently.
- State how arrangements are reviewed and ended.
- Handle disability or pregnancy-related schedule requests through the reasonable accommodation process, not the flexible work policy.
Inconsistent approvals are the biggest risk. If one manager approves every request and another approves none, employees notice, and patterns along gender, age or caregiving lines can become discrimination claims.
Frequently asked questions
What is a compressed workweek?
A compressed workweek fits full-time hours into fewer days, most often four 10-hour days (4/10) or 80 hours over nine days in a two-week period (9/80). Pay stays the same; the schedule changes.
What is flextime?
Flextime lets employees choose their start and end times within set limits, usually around core hours when everyone must be available. Total hours stay the same.
Is a four-day workweek the same as a compressed workweek?
Not necessarily. A compressed workweek keeps 40 hours in four days. A four-day workweek, as tested in many pilots, usually cuts hours to around 32 while keeping pay the same, with the expectation that output holds.
Do employees have a right to flexible working?
In the US there is no general right to request flexible work, although the ADA and the Pregnant Workers Fairness Act can require schedule changes as an accommodation. In the UK and several other countries, employees have a legal right to request it.
Do flexible schedules affect overtime?
They can. Federal overtime is based on hours over 40 in a workweek, so compressed schedules must be set up carefully, especially the 9/80. States with daily overtime, such as California, have extra rules for alternative workweek schedules.