Tool
Shift Schedule Calculator
Build a clear ON/OFF duty calendar for popular firefighter rotations (24/48, 48/96, Kelly-style) or a custom pattern.
Tip: Pick the date of your next ON duty day.
📅 Firefighter Shift Calendar (Month View + iCal)
Build a 24/48, 48/96, or Kelly calendar in a real month grid.
Export to Google/Apple Calendar with iCal (.ics).
Schedule Settings
Informational tool only. Always follow your department SOPs.
Results
Generate a schedule to see results.
How the firefighter shift schedule calculator works
Firefighter schedules vary by department, but most rotations follow a repeatable pattern of ON duty days and OFF days. This tool generates a clear calendar for common rotations like 24/48, 48/96, and a common Kelly-style cycle—plus a custom pattern option.
1) Pick a preset (or enter a custom pattern)
- 24/48: one 24-hour shift followed by 48 hours off.
- 48/96: two 24-hour shifts back-to-back, then 96 hours off.
- Kelly-style: many departments use a variation—always verify with your agency.
- Custom: enter a comma-separated ON/OFF day pattern (example:
1,2or1,2,1,2,1,4).
2) Choose your start date (ON duty)
- Select the date of your next ON duty shift.
- Pick how far ahead you want the calendar: 30, 60, 90, or 180 days.
- Use the Platoon selector to label your output (A/B/C).
3) Read the calendar output
- ON DUTY days show your duty block (example: “Day 1/2”).
- OFF days show your time off between shifts.
- The summary totals estimate on-duty days, off-duty days, and total duty hours in the selected range.
Important notes
- Schedules can vary by department policy, staffing, trade days, and overtime.
- Kelly schedules are not universal—use this as a planning tool and confirm against your official schedule.
- This calculator is informational only. Always follow your department SOPs.
FAQ
Pick the date of your next shift that starts an ON-duty block. The tool builds the rotation forward from that point.
Yes. Choose “Custom Pattern” and enter the ON/OFF day cycle as comma-separated numbers (example: 1,2).
No. This tool generates the base rotation pattern. Trades, overtime, and special assignments can change your real schedule.
Yes. Use the “Print / Save as PDF” button or “Download PDF” for a clean print-friendly output.