DuPont Rotation Schedule Generator
Per-crew summary
The DuPont schedule packs four crews around a 28-day cycle: four nights, three days off, three days, one day off, three more nights, three days off, four days, and then a seven-day break before the cycle repeats. That closing week off is the pattern's signature — most crews who choose DuPont over the other rotations here choose it for that stretch, not for anything else in the cycle.
The trade-off sits earlier in the cycle. DuPont asks for four consecutive night shifts in a row, the longest unbroken night block of the rotations on this site, and the turnaround from the first day block back into nights is a single day off — not the two or three days most people would want between a day run and a night run. The second night block, three nights, gets three full days off around it, which is more forgiving.
Because the cycle is exactly 28 days — a whole number of weeks — a DuPont crew's schedule lands on the same weekdays every time it repeats. If a crew member is off on a particular Tuesday this cycle, they are off on that same Tuesday four weeks later, every time. That is what "weekday alignment: 28 days" means below: DuPont realigns to the calendar every single cycle, with no drift.
DuPont traces back to DuPont chemical manufacturing plants, where continuous, unattended process lines made a fixed four-crew, round-the-clock rotation a practical necessity. Like every rotation on this site, it covers 24/7 with four 12-hour crews averaging 42 hours a week — see the shared math on the rotations hub page.
Frequently asked questions
Why 42 hours a week and not 40? Twelve-hour shifts mean any single week is either 36 or 48 hours, depending on which days of the cycle fall inside it. 42 hours is the average across the full 28-day cycle, not any one week — it comes from 168 hours of coverage every week split across 4 crews, the same math behind every rotation on this site.
Why is there only one day off before the second night block? That is the point in the cycle where a crew flips from a 3-day day block straight into a 3-night night block. DuPont only gives one day to make that turn, versus three days everywhere else the cycle switches direction.
Why put the long break at the end instead of spreading it out? The 7-day break is the reason most crews rate DuPont highly — it is the trade for accepting the 4-night block and the tight one-day turnaround earlier in the cycle.
Does a DuPont crew's schedule ever land on different weekdays? No. Because 28 days is exactly four weeks, the cycle realigns to the calendar every time it repeats — unlike 4-on-4-off, which drifts through the week.