24/48 firefighter schedule calendar and PTO optimizer
One 24-hour duty shift followed by 48 hours off, repeating every three days. Align one known shift below to generate your calendar and find the strongest PTO bridges.
3-day cycle24 hours on · 48 hours off
Preparing your local calendar…
Cycle length3 days
Work shifts1
Hours per cycle24
Average weekly hours56
Longest work block1 days
Longest natural break2 days
Exact preset
How the 24/48 cycle is mapped
Time Off Map treats the date on which a shift begins as its service date. Your selected known work date is matched to one position in the repeating sequence. Dates before and after that anchor are calculated in both directions, including leap days.
124-hour duty24h
2Off—
3Off—
Before relying on the calendar
The duty date is treated as one scheduled 24-hour shift.
Kelly, debit, trade, and training days are not added automatically.
Common questions
24/48 schedule questions
Can one known work date identify my entire calendar?
Only when you also identify where that date sits in the repeating cycle. Schedules with several work positions are ambiguous otherwise, so Time Off Map asks you to choose the matching cycle day instead of silently guessing.
Does a holiday automatically remove my shift?
No. Rotating operations frequently continue through holidays. Holidays are informational unless you deliberately turn on the setting that treats U.S. federal holidays as non-working days.
Why might my employer’s 24/48 schedule differ?
Schedule names are not universal standards. Relief times, fixed versus rotating shifts, Kelly or debit days, crew phases, and local agreements can change the sequence. Compare the visible preset with your roster before using the result.