Kelly Schedule Explained: Firefighter Hours, Pay, and Tips
The Kelly schedule is the most common firefighter shift rotation in the United States. Three 24-hour shifts spread across 9 days, with a built-in 4-day break at the end of every cycle. It gives firefighters something most shift workers never get: a long weekend every week and a half, plus enough time off to maintain a life outside the station.
The name comes from Mayor Edward Kelly of Chicago, who introduced the extra day off for Chicago firefighters in the late 1930s. Before Kelly, firefighters worked a straight 24/48 rotation with no relief. That extra day, now called the “Kelly day,” turned a 2-day break into a 4-day break and changed fire service scheduling permanently.
If you are a firefighter on the Kelly schedule, considering a department that uses it, or just trying to understand how your firefighter spouse’s rotation works, this guide covers everything: how the cycle works, what the hours and pay look like, and practical tips for making it sustainable.
What Is a Kelly Schedule?
The Kelly schedule is a 9-day rotating shift pattern built for fire departments. Three teams rotate through 24-hour shifts, and the defining feature is the extra day off (the “Kelly day”) that turns a standard 2-day break into a 4-day break once every cycle.
Here is the basic rhythm: you work a 24-hour shift, get 24 hours off, work another 24, get 24 off, work a third 24, and then get 4 consecutive days off. That 4-day break is the Kelly day in action. Instead of coming back after 2 days like you would on a straight 24/48, you get 2 extra days to recover.
The Kelly schedule uses 3 teams to provide 24/7 coverage. At any given time, exactly one team is on duty. The other two are off. With only 3 teams needed (compared to 4 for the 2-2-3 or DuPont), it is efficient for departments that run 24-hour shifts.
The 9-day cycle does not align with the 7-day week, so your shift days rotate through the calendar. If you work Monday, Wednesday, and Friday this cycle, your next cycle starts on completely different days. Over time, you work every day of the week equally. This is why a calendar tool is essential for planning.
How the Kelly Schedule Rotation Works
The Kelly schedule cycle for one team over 9 days:
- Day 1: Work a 24-hour shift (7 AM to 7 AM)
- Day 2: Off
- Day 3: Work a 24-hour shift
- Day 4: Off
- Day 5: Work a 24-hour shift
- Days 6-9: Off (4 consecutive days, includes the Kelly day)
That is 3 work days and 6 days off in every 9-day cycle. You spend roughly one-third of your time at the station and two-thirds off duty. The ratio is what makes the Kelly schedule attractive despite the long shifts.
Here is the full 9-day cycle for all 3 teams. W = Working (24 hours), – = Off, K = Kelly day.
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Team A | W | – | W | – | W | – | – | K | – |
| Team B | – | W | – | W | – | – | K | – | W |
| Team C | – | – | – | K | – | W | – | W | – |
Every day, exactly one team is on duty. The “K” marks the Kelly day for each team. The pattern repeats after day 9. Team A is back on shift, and the whole cycle starts over.
To see your personal Kelly schedule mapped to actual calendar dates for the next 12 months, use the shift schedule maker. Select “Kelly,” enter your start date and team, and export to Google Calendar or PDF.
Kelly Schedule Hours Breakdown
On a Kelly schedule, you work 3 shifts per 9-day cycle. At 24 hours each, that is 72 hours every 9 days. Here is what that looks like annualized:
| Metric | Amount |
|---|---|
| Shifts per month | ~9-10 shifts |
| Shifts per year | ~112 shifts |
| Total hours per year | ~2,688 hours |
| Average hours per week | ~53 hours |
| Days off per month | ~21 days |
Compare that to the straight 24/48 schedule at ~56 hours per week. The Kelly schedule saves you roughly 3 hours per week, which adds up to about 150 fewer hours per year. That is 10 fewer shifts annually. Over a 25-year career, that is roughly 3,750 hours you get back.
Also compare to industrial 12-hour rotations: the 2-2-3, DuPont, and 4-on-4-off all average about 42 hours per week. Firefighters on the Kelly schedule work significantly more total hours, but they work fewer individual days (about 112 per year vs 182 for 12-hour workers). The trade-off is longer shifts with more days completely off.
Kelly Schedule Pay and Overtime
Firefighter pay on the Kelly schedule works differently than standard overtime rules. Fire departments fall under the FLSA Section 7(k) exemption, which allows work periods of 7 to 28 days with higher overtime thresholds than the standard 40-hour week.
Most departments using the Kelly schedule apply a 27-day work period with a 204-hour threshold. Since you work about 216 hours in a 27-day period, you typically earn overtime on roughly 12 hours per cycle.
At a $20/hour base rate (common for entry-level firefighters):
| Metric | Amount |
|---|---|
| Base pay (2,688 hrs x $20) | $53,760 |
| FLSA overtime (~12 hrs/cycle) | Varies by department |
| Holiday premium (if applicable) | Varies |
| Paramedic/hazmat differential | $2,000-$8,000/year |
Firefighter compensation varies significantly by department, region, and rank. Many firefighters supplement their income with overtime shifts, side businesses, or second careers during their 4-day breaks. Paramedic certifications, hazmat pay, longevity bonuses, and education incentives can add $5,000 to $15,000 annually on top of base pay.
Use the shift pay calculator to estimate your earnings based on your actual hourly rate. The overtime calculator can help you figure out your FLSA overtime rates.
Pros and Cons of the Kelly Schedule
What Works Well
- 4 consecutive days off every 9 days. This is the headline feature. That 4-day break is long enough for a short trip, a home project, quality family time, or proper recovery. Most shift workers on 12-hour rotations max out at 3 days off. The Kelly gives you 4, and it comes around fast.
- Fewer hours than a straight 24/48. The Kelly schedule averages about 53 hours per week compared to 56 on the 24/48. That is 150 fewer hours per year, about 10 fewer shifts annually.
- Only ~9 work days per month. You are at the station about 9 days out of 30. The other 21 are yours. That ratio gives you real flexibility for side work, education, family, or personal projects.
- Strong crew bonds. You spend 24 hours with the same team, cooking together, training together, running calls together. The fire service culture is built on these shared experiences, and the Kelly schedule’s 24-hour format supports that.
- Time for second careers. Many firefighters on the Kelly schedule run small businesses, work as contractors, teach, or pursue additional certifications during their extended time off. The schedule practically encourages it.
- Predictable and plannable. The 9-day cycle repeats without variation. Once you know your start date, you can map out your Kelly schedule for the entire year.
What Is Challenging
- 24 hours is a long shift. Being on duty for 24 straight hours is demanding regardless of call volume. On busy nights, you might get 1-2 hours of sleep. Research from the CDC’s NIOSH program links extended shifts to increased fatigue, impaired decision-making, and higher injury rates.
- Busy stations are punishing. In high-call-volume stations, three 24-hour shifts in 5 days with minimal sleep on each one adds up fast. The 4-day break helps, but chronic sleep debt is real.
- Rotating days are hard on families. Because the 9-day cycle does not align with the 7-day week, your work days shift constantly. You will miss some holidays, birthdays, and school events. Over time it evens out, but that does not make it easier when you are at the station on Christmas morning.
- 53 hours per week is still a lot. Compared to the 42-hour average of the 2-2-3 or DuPont, firefighters on the Kelly schedule work significantly more hours. The trade-off is fewer but longer work days.
- Physical toll compounds over years. Firefighting is physically demanding. Doing it for 24 hours at a stretch, often after interrupted sleep, increases injury risk. The NFPA reports that overexertion and strain remain leading causes of firefighter injuries.
Who Uses the Kelly Schedule
The Kelly schedule is overwhelmingly a fire service rotation. It was designed for firefighters, and that is where it lives.
Major Fire Departments
Chicago Fire Department is where the Kelly schedule was born. Houston, Phoenix, Dallas, and hundreds of other career departments across the country run the Kelly rotation. If a department uses 24-hour shifts with 3 teams, there is a good chance they are running a Kelly or a close variant.
EMS Agencies
Some ambulance services and paramedic units co-located with fire stations also run the Kelly schedule, especially in departments where fire and EMS are integrated. The 24-hour shift format works well for agencies that need crews available around the clock.
Not Common Outside Fire/EMS
Unlike the DuPont, 2-2-3, or 4-on-4-off, the Kelly schedule is rarely used in manufacturing, healthcare, or law enforcement. Police departments typically use the Pitman or 2-2-3. Factories use the DuPont or Continental. The Kelly schedule is a firefighter rotation through and through.
Kelly Schedule vs Other Firefighter Rotations
Here is how the Kelly schedule compares to the other common fire service patterns.
Kelly Schedule vs 24/48
The 24/48 schedule is the Kelly schedule’s simpler sibling. Both use 24-hour shifts with 3 teams. The only difference is the Kelly day.
| Feature | Kelly Schedule | 24/48 |
|---|---|---|
| Cycle length | 9 days | 3 days |
| Average hours/week | ~53 | ~56 |
| Longest break | 4 days | 2 days |
| Shifts per year | ~112 | ~122 |
| Kelly day included | Yes | No |
The Kelly schedule gives you about 10 fewer shifts per year and a 4-day break instead of a 2-day break. Most firefighters prefer the Kelly over the straight 24/48 if their department offers it. The 24/48 is simpler to administer, which is why some smaller departments stick with it, but the Kelly schedule is the clear winner for quality of life.
Kelly Schedule vs 48/96
The 48/96 schedule is the newer alternative in fire service. Instead of three separate 24-hour shifts, you work 48 consecutive hours and get 96 hours (4 days) off.
| Feature | Kelly Schedule | 48/96 |
|---|---|---|
| Shift length | 24 hours | 48 hours |
| Cycle length | 9 days | 6 days |
| Average hours/week | ~53 | ~56 |
| Longest break | 4 days | 4 days |
| Commutes per month | ~9 | ~5 |
Both schedules give you 4-day breaks, but they get there differently. The 48/96 cuts your commutes nearly in half and gives you a simpler cycle, but you are at the station for 48 straight hours. On a busy shift, that second night can be brutal. The Kelly schedule spreads your duty time across 3 separate shifts with rest days in between, which is easier on your body. The 48/96 also averages about 3 more hours per week.
Kelly Schedule vs DuPont
The DuPont schedule comes from a completely different world (manufacturing), but the comparison is useful for understanding shift work trade-offs.
| Feature | Kelly Schedule | DuPont |
|---|---|---|
| Industry | Fire/EMS | Manufacturing, energy |
| Shift length | 24 hours | 12 hours |
| Average hours/week | ~53 | ~42 |
| Longest break | 4 days | 7 days |
| Day/night rotation | No (24-hr shifts) | Yes |
The DuPont wins on total hours (42 vs 53 per week) and longest break (7 days vs 4). But the Kelly schedule avoids the day-to-night transitions that make the DuPont tough on your circadian rhythm. Different jobs, different needs, different schedules.
Want a side-by-side look at all patterns? Use the schedule finder to compare options, or browse all rotating shift patterns.
Tips for Managing the Kelly Schedule
The Kelly schedule is one of the more livable fire service rotations, but 24-hour shifts still take a toll. Here is what experienced firefighters recommend.
Getting Through the 24-Hour Shifts
- Sleep when you can, not when it is convenient. If there is a lull between calls at 10 PM, do not stay up watching TV. Bank that sleep. You might be running calls from 1 AM to 5 AM.
- Eat well at the station. A solid dinner keeps your energy up through the night. Avoid heavy snacking after midnight since it makes you sluggish when you need to be sharp.
- The 3-5 AM window is your danger zone. Your body’s circadian low point. Reaction times slow, judgment gets fuzzy. If you are on a call during this window, be extra deliberate.
- Hydrate constantly, especially during calls and training. Dehydration compounds fatigue faster than most firefighters realize.
- Do not drive drowsy after your shift. The drive home after a rough 24 is when accidents happen. If you are too tired, sit in your car for 15 minutes or take a short nap before heading home.
Making the Most of Your 4-Day Break
- Day 1 is recovery. Accept it. You just worked a 24-hour shift. Get home, eat, sleep. Do not try to be productive.
- Days 2-3 are your golden days. You are rested, you have no obligations, and your next shift is still 2-3 days away. This is when you handle the big stuff: family time, projects, appointments, side work.
- Day 4, start preparing. Light day. Get your gear ready, meal prep for the station, get to bed at a reasonable hour. Walking into your next shift well-rested makes the whole cycle easier.
- Plan something for every 4-day break. Even something small. A day trip, a project around the house, dinner with friends. Having something on the calendar gives your time off structure.
Staying Healthy Long-Term
- Get annual physicals. The NFPA 1582 standard recommends comprehensive medical evaluations for firefighters. Extended shift work is linked to cardiovascular issues and metabolic problems. Catch things early.
- Exercise on your days off. Walking, swimming, cycling, or yoga all help reset your body between shifts. Consistent movement improves sleep quality and reduces the physical toll of the Kelly schedule over time.
- Invest in sleep quality at home. Blackout curtains, a quality mattress, a cool room. These are not luxuries for firefighters. They are tools for longevity.
- Watch your mental health. The fire service carries unique stressors beyond shift work. If you are struggling, reach out. Your department’s EAP, peer support programs, and organizations like the NVFC Share the Load program exist for a reason.
Share Your Kelly Schedule with Family
The biggest complaint from firefighter families is not knowing when you are working. The 9-day cycle confuses people who are not on it. Share your calendar so your partner, kids, and friends can see your availability. The shift schedule maker generates a shareable link that stays updated. You can also read the full shift scheduling guide for more tips on managing shift work life.
How to Create Your Kelly Schedule Calendar
Setting up your personal Kelly schedule calendar takes about 30 seconds.
Step 1: Select the Kelly Schedule Pattern
Open the shift schedule maker and choose “Kelly” from the pattern dropdown. The tool loads the full 9-day rotation with 24-hour shifts and Kelly days color-coded.
Step 2: Enter Your Start Date and Team
Pick the date your Kelly schedule rotation cycle began (or will begin) and select your team (A, B, or C). The calendar generates up to 12 months of your personal schedule instantly.
Step 3: Export and Share Your Kelly Schedule
Choose how you want to use your calendar:
- Add to Google Calendar, Outlook, or Apple Calendar as recurring events
- Download as a PDF to keep on your fridge, locker, or station
- Print a clean version optimized for readability
- Copy a shareable link so your family and crew can see your schedule
The tool also calculates your monthly hours and shift distribution. Pair it with the shift pay calculator to estimate your monthly and yearly earnings. Check which public holidays overlap with your work days using the holiday calendar.
Frequently Asked Questions About the Kelly Schedule
How many hours do you work on a Kelly schedule?
You work an average of 53 hours per week on a Kelly schedule. Over the 9-day cycle, you work three 24-hour shifts for a total of 72 hours. That is about 2,688 hours per year, or roughly 112 shifts. Compare that to the straight 24/48 at ~56 hours per week (122 shifts per year).
What is a Kelly day?
A Kelly day is the extra day off that separates the Kelly schedule from a straight 24/48 rotation. It extends your 2-day break into a 4-day break once every 9-day cycle. The name comes from Mayor Edward Kelly of Chicago, who introduced the extra day off for Chicago firefighters in the late 1930s to reduce fatigue and improve quality of life.
How is the Kelly schedule different from the 24/48?
Both use 24-hour shifts with 3 teams, but the Kelly schedule adds an extra day off (the Kelly day) that turns a 2-day break into a 4-day break. This gives you about 10 fewer shifts per year and roughly 150 fewer hours annually compared to a straight 24/48 rotation.
Who uses the Kelly schedule?
The Kelly schedule is used almost exclusively by fire departments and EMS agencies. Major departments including Chicago, Houston, Phoenix, and Dallas run the Kelly rotation. It is the most common shift pattern in career fire departments across the United States. It is rarely used outside of fire/EMS.
Can you work a second job on the Kelly schedule?
Yes. The Kelly schedule gives you about 21 days off per month, including a 4-day break every 9 days. Many firefighters use this time for second careers, side businesses, contracting work, or pursuing additional certifications like paramedic or nursing degrees. The schedule practically encourages it, and most departments allow outside employment as long as it does not interfere with your duties.