Time & Shifts Tools

Compressed Workweek Calculator

Model a 4-day week, 9/80 schedule or any compressed arrangement. See your daily hours, pay impact, overtime implications and days off gained — instantly.

Configure Your Schedule

Schedule Type

Current Schedule (Standard)
hrs/day
$
Compressed Schedule
hrs/day
Overtime Settings
Annual Context
50 = standard after 2 weeks vacation
$
Current Schedule
Compressed Schedule
Days Off Gained
—
per year
OT Hours/Week
0
none
Hours/Day
—
compressed day
Pay Change
—
enter rate

Week at a Glance

Current
Compressed

Annual Comparison

Before You Propose This Schedule

Note: Calculations are estimates based on the inputs provided. Actual pay impact depends on your employment agreement, overtime provisions, benefits structure and employer policy. Always consult HR and review your employment contract before requesting a schedule change.
4-Day Week Strategy

How to Actually Make a 4-Day Week Work

Build your case with data first
Before requesting a compressed schedule, document your productivity, client satisfaction and deliverable track record for 3-6 months. The strongest requests come with evidence that the person asking is already a reliable, high-output performer — not a hope that the schedule will make them one.
Address team coverage upfront
The most common objection is coverage: "What happens when clients need you on your day off?" Address this before being asked. Propose a coverage plan, identify a colleague who can handle urgent matters and offer a monthly check-in to review whether coverage is working.
Start with a trial period
Rather than requesting a permanent change immediately, propose a 3-month trial with clear success metrics. This dramatically reduces the risk your employer perceives, makes it easier to say yes, and gives you real data to support making the arrangement permanent.
Protect your long-day boundaries
A compressed schedule only works if the longer days are actually more productive — not if they just become 10 hours of the same density as 8. Protect focus time, be aggressive about eliminating low-value meetings on compressed days and end on time. If 10-hour days regularly become 11-12, the arrangement is failing.
Know your overtime implications
In some provinces, overtime triggers at the daily level (e.g. after 8 hours/day in BC), not just the weekly level. A 4x10 arrangement may legally require overtime pay for the extra 2 hours each day even if your weekly total is the same. Check your Employment Standards Act before agreeing to a compressed schedule without OT pay.
Get everything in writing
A verbal agreement to work a 4-day week has limited enforceability. Get the arrangement documented in an amended employment agreement, letter of understanding or formal schedule change form. This protects you if management changes, and prevents scope creep back toward a standard schedule without discussion.

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Frequently Asked Questions

A true 4-day week (as advocated by organisations like 4 Day Week Global) involves working the same number of hours in 4 days as you previously did in 5 — but at equivalent pay. A compressed workweek typically means working the same total hours (e.g. 40h) in fewer days (e.g. 4 × 10h or a 9/80 arrangement). Both result in more days off, but the true 4-day week implies a productivity improvement rather than simply longer daily hours.

A 9/80 schedule distributes 80 hours of work across 9 days over a 2-week period, resulting in one day off every other week (typically an alternate Friday). In Week 1 you work 9 hours per day Monday-Thursday, and 8 hours on Friday. In Week 2 you work 9 hours per day Monday-Thursday, and take Friday off. Total hours remain 80 over 2 weeks — the same as a standard 2-week schedule.

It depends on your province and your employment agreement. In most Canadian provinces, weekly overtime triggers after 40-44 hours (varies by province). A 4×10 schedule is exactly 40 hours per week so typically does not trigger weekly OT. However, some provinces also have daily overtime thresholds (e.g. BC: OT after 8 hours/day). If your compressed schedule has daily hours exceeding the daily threshold, you may be entitled to daily OT even if your weekly total is within limits. Check your provincial Employment Standards Act.

In most cases, yes — unless a collective agreement or employment contract specifies otherwise, your employer has the right to set your work schedule. However, under certain human rights grounds (e.g. religious observance, disability accommodation), you may have stronger grounds to request flexible scheduling. The most effective path is usually making a strong business case and proposing a trial period rather than asserting a right.

Most benefits (health, dental, pension, vacation) are based on annual salary or insured earnings rather than daily hours worked, so they typically are not affected by a compressed schedule at the same total annual hours. However, some benefits (particularly life insurance or disability insurance based on weekly earnings) may calculate differently. Always confirm with your HR department.

Research on compressed workweeks shows mixed results on health. Some workers report better wellbeing due to the additional day off and reduced commuting. Others experience fatigue from longer daily hours, particularly in physically or cognitively demanding roles. Key factors: adequate sleep between shifts (minimum 11 hours recommended), maintaining exercise and nutrition habits, and not allowing 10-hour days to routinely stretch to 12+ hours.