Practical guide

DuPont Schedule: Reading a 28-Day Work/Rest Cycle

The work/rest version modeled here uses 4 work, 3 rest, 3 work, 1 rest, 3 work, 3 rest, 4 work and 7 rest days.

By Intious · Updated September 7, 2026

Quick answer

The work/rest version modeled here uses 4 work, 3 rest, 3 work, 1 rest, 3 work, 3 rest, 4 work and 7 rest days.

Check the pattern

This cycle contains fourteen workdays and fourteen rest days over twenty-eight days. At twelve hours per workday, that is 168 scheduled hours, averaging 42 per week. The single rest day between three-day work blocks can be easy to overlook.

Confirm your local variant

The label DuPont is not enough to identify a person’s exact roster. Employers may use different team offsets or day/night assignments. Compare the work/rest sequence with your official schedule before using it.

Export with realistic expectations

The downloaded calendar creates all-day work markers. It does not send roster changes to your employer or update itself when the schedule changes. Delete or replace outdated imported calendars to avoid duplicate shift markers.

Try it with your numbers

Generate a dated work/rest rotation and download an all-day calendar.

Rotating Shift Calendar

Next steps

Calculation limitations · Report a correction

Frequently asked questions

Does every DuPont roster start on the same date?

No. Different crews have different offsets. The same named pattern can put one crew at work while another is resting.

Does 168 hours mean every month has 168 scheduled hours?

No. It describes the modeled 28-day cycle at 12 hours per workday. Calendar months have different lengths and can intersect different parts of the rotation.

Does the work/rest calendar assign day and night crews?

No. It shows one person’s work and rest dates. Crew assignments and day/night transitions must come from the actual roster.

Check the assumptions against the Rotating Shift Calendar and keep the inputs alongside your result. For a discrepancy, send an anonymous worked example rather than private employee records.

Explore more in Shift Schedules Calculators and Guides.