28-day rotation

DuPont schedule calendar and PTO optimizer

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

Your rotation

Build your calendar

Start with one shift you know. Your plan updates instantly.

Schedule pattern

Choose a known shift and match it to the correct day or night position in the cycle strip.

A date you know you workThat date’s cycle position

Calendar yearPTO budget

hours

Optimize for

Treat U.S. federal holidays as offLeave this off if your rotation continues through holidays.

Saved only on this device. No account required.

Best PTO opportunity

2 PTO shifts unlock 9 days off

Jan 4, 2026–Jan 12, 2026 · 24 PTO hours · 4.5 days away per PTO shift

9days
away

The bridge

Request these dates

Back Jan 13

Jan 4Jan 5

2 PTO shifts+7 natural days off=9 consecutive days

Day Night Duty Off PTO

Sun

Mon

Tue

Wed

Thu

Fri

Sat

26O

27O

28N

29N

30N

31N

10N

11O

12O

13O

14D

15D

16D

17D

18O

19O

20O

21O

22O

23O

24O

25N

26N

27N

28N

29O

30O

31O

More possibilities

Your best breaks in 2026

Choose a plan to highlight it on your calendar.

Quick answer

Do I work on this date?

Check any date against your current rotation.

Date to check

YOU WORKAug 25, 2026Night shift · 12 scheduled hours

Year at a glance

DuPont in 2026

Scheduled shifts: 182
Scheduled hours: 2,184
Weekend shifts: 52
Holiday shifts: 6

Take it with you

Export or share your calendar

Your schedule stays private unless you choose to share it.

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.