Four crews, 12-hour shifts, and the feature that sells it to the floor: a full seven days off every fourth week. Continuous 24/7 coverage with an average of 42 hours a week.
DuPont is a FOUR-WEEK cycle. The grid below is week 1 (crews A and B working, C and D on their off-rotation); the full pattern per crew is 4 nights, 3 off, 3 days, 1 off, 3 nights, 3 off, 4 days, 7 off. Apply it four times with the crews advanced one step each week.
DuPont shift schedule — weekly shift grid, one row per staffing slot.
Slot
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Shift
Crew AOperator
19:00–07:00+1×5
19:00–07:00+1×5
19:00–07:00+1×5
19:00–07:00+1×5
Off·
Off·
Off·
12h overnight
Crew BOperator
07:00–19:00×5
07:00–19:00×5
07:00–19:00×5
07:00–19:00×5
07:00–19:00×5
07:00–19:00×5
07:00–19:00×5
12h
Crew COperator
Off·
Off·
Off·
Off·
19:00–07:00+1×5
19:00–07:00+1×5
19:00–07:00+1×5
12h overnight
Supervisor DayShift supervisor
07:00–19:00
07:00–19:00
07:00–19:00
07:00–19:00
07:00–19:00
07:00–19:00
07:00–19:00
12h
Supervisor NightShift supervisor
19:00–07:00+1
19:00–07:00+1
19:00–07:00+1
19:00–07:00+1
19:00–07:00+1
19:00–07:00+1
19:00–07:00+1
12h overnight
One row per staffing slot; ×N means that many people on that block. Times are local to the location. +1 marks a shift that ends the following calendar day.
Use this pattern when…
You run a continuous process that cannot stop and you have four crews to put against it.
Your operators value long blocks of time off more than a predictable Monday-Friday.
You want a pattern with decades of industrial track record rather than something invented in a spreadsheet.
What to watch out for
It averages 42 hours a week, not 40. Over a 4-week cycle that is 8 hours of overtime built into the pattern — intentional, and it must be budgeted.
The 4-consecutive-night block is the hardest part of any 12-hour rotation. Fatigue accumulates and the fourth night is measurably the worst.
It only works with four full crews. Run it with three and a bit, and the coverage holes land on whoever is least able to refuse them.
From CSV to a live schedule
Three steps, no data entry.
The download is not a PDF you print and pin up. Its columns are the ones Weekwright's schedule importer reads, so the file you edit in Excel is the file you upload.
1
Swap in your team
Replace the placeholder names in the Employee column with your staff. Leave Day, Start, End, and Position alone — those are what the importer maps.
2
Upload it
Drag the file onto the schedule page. Every row is previewed with its detected columns before anything is created, so a bad cell is a warning, not a surprise.
3
Tell the AI what changed
“Maya is off Thursday, cover it”. The agent repairs the week against your real availability, skills, and compliance rules instead of you re-editing the grid.
A four-crew, 12-hour rotation over a four-week cycle: 4 night shifts, 3 off, 3 days, 1 off, 3 nights, 3 off, 4 days, then 7 consecutive days off. It gives continuous 24/7 coverage at an average of 42 hours per week per operator.
How many hours a week is the DuPont schedule?
42 on average — 168 hours over the 4-week cycle. The overtime is structural, not accidental, so budget for it rather than discovering it. Weekwright's weekly-hours rule can be set above 40 for exactly this case, per org.
Why does the CSV only show one week?
Because a four-week rotation cannot be expressed in a single week grid without lying. Week 1 is here; apply it four times with each crew advanced one step in the cycle. Once it is in Weekwright you can save the applied week as a template and mark it recurring.
Stop rebuilding the same week.
Weekwright drafts it, checks it against your rules, and lets you approve. Free for a single location.