How this Modified DuPont 4-2-3-3-3-4-4-7 Shift Pattern works
A 30-day modified DuPont rotation: four days, two off, three nights, three off, three days, four off, four nights and seven off.
The full 30-day repeating cycle
14 working shifts and 16 rest days per 30-day cycle. Hours depend on the shift length set by your employer. This is an individual employee's repeating sequence, not a guarantee of full-team 24/7 coverage.
This is the specified 4-2-3-3-3-4-4-7 modification, not standard DuPont. Modified DuPont is not one universally fixed pattern.
The rotation shown is the exact sequence described for this guide. Names and schedules can vary between employers; confirm against your roster.
Frequently asked questions
How many days are in this shift rotation?
The complete repeating sequence has 30 days, with 14 scheduled work shifts and 16 days off.
Can I set up this rotation in ShiftShow?
Yes. Use Smart Shift Builder to enter each day-shift, night-shift and rest-day block, then verify the calendar against your employer's roster and starting date.
Does the pattern specify the number of hours per shift?
No. The diagram shows shift types and rest days. Set the actual start times and shift duration used at your workplace.
How this modified DuPont differs from standard DuPont
The specific modified roster represented by 42333447 is: 4 days, 2 off, 3 nights, 3 off, 3 days, 4 off, 4 nights, 7 off. The eight numbers add up to 30 calendar days, comprising 14 working shifts and 16 rest days. This sequence was supplied as the particular modified DuPont arrangement to illustrate; it is not the universal definition of “modified DuPont”. A standard DuPont schedule follows a distinct 28-day sequence with a one-day rest block. Confirm your crew’s starting point and the actual on-duty times before entering this rotation.
Further reading: Circadian: standard DuPont and possible modifications
Build the rotation in ShiftShow
Open Smart Shift Builder, choose your start date, and enter the sequence of day shifts, night shifts and days off shown above. Check it against your workplace roster before saving.
Once configured, use your colour-coded calendar to plan ahead, track overtime and manage leave.
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