A four-team, 12-hour rotating schedule known for its seven-day break in each 28-day cycle. Align one known shift below to generate your calendar and find the strongest PTO bridges.
28-day cycle4 nights · 3 off · 3 days · 1 off · 3 nights · 3 off · 4 days · 7 off
Preparing your local calendar…
Cycle length28 days
Work shifts14
Hours per cycle168
Average weekly hours42
Longest work block4 days
Longest natural break7 days
Exact preset
How the DuPont 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.
1Night shift12h
2Night shift12h
3Night shift12h
4Night shift12h
5Off—
6Off—
7Off—
8Day shift12h
9Day shift12h
10Day shift12h
11Off—
12Night shift12h
13Night shift12h
14Night shift12h
15Off—
16Off—
17Off—
18Day shift12h
19Day shift12h
20Day shift12h
21Day shift12h
22Off—
23Off—
24Off—
25Off—
26Off—
27Off—
28Off—
Before relying on the calendar
The preset uses the common 28-day DuPont sequence shown on this page.
Relief times and employer-specific transition rules vary; confirm the generated preview.
Common questions
DuPont 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 DuPont 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.