Rotating shift generator

DDNNOO Shift Schedule — Free Calendar Generator

The DDNNOO rotation — also written 2-2-2, or 2 days 2 nights 2 off — is a fast 6-day cycle covered by three crews.

Cycle6 days
Crews3
Shift length12 hours
Best for24/7 operations that prefer fast rotation and only three crews — security, manufacturing, dispatch
Day 7a–7pNight 7p–7aOff
108 work days52 days off54 day54 night1296 hours

October 2026

MonTueWedThuFriSatSun
1234
567891011
12131415161718
1920212223Day24Day25Night
26Night272829Day30Day31Night

November 2026

MonTueWedThuFriSatSun
1Night
234Day5Day6Night7Night8
910Day11Day12Night13Night1415
16Day17Day18Night19Night202122Day
23Day24Night25Night262728Day29Day
30Night

December 2026

MonTueWedThuFriSatSun
1Night234Day5Day6Night
7Night8910Day11Day12Night13Night
141516Day17Day18Night19Night20
2122Day23Day24Night25Night2627
28Day29Day30Night31Night

January 2027

MonTueWedThuFriSatSun
123Day
4Day5Night6Night789Day10Day
11Night12Night131415Day16Day17Night
18Night192021Day22Day23Night24Night
252627Day28Day29Night30Night31

February 2027

MonTueWedThuFriSatSun
12Day3Day4Night5Night67
8Day9Day10Night11Night121314Day
15Day16Night17Night181920Day21Day
22Night23Night242526Day27Day28Night

March 2027

MonTueWedThuFriSatSun
1Night234Day5Day6Night7Night
8910Day11Day12Night13Night14
1516Day17Day18Night19Night2021
22Day23Day24Night25Night262728Day
29Day30Night31Night

DDNNOO schedule: a complete 6-day example

This is the preset used by the generator above, with every crew shown side by side. Day 1 is the cycle reference date you enter, not necessarily the first working day for every crew. Day and night labels refer to the date a shift starts.

DDNNOO: all crews across one repeating cycle
Cycle dayCrew ACrew BCrew C
Day 1 DayNightOff
Day 2 DayNightOff
Day 3 NightOffDay
Day 4 NightOffDay
Day 5 OffDayNight
Day 6 OffDayNight

Hours and days off in this preset

Each crew has 4 work days and 2 off days per cycle. Scheduled hours are 48 ÷ 6 × 7 = 56 hours per week on average. This cycle average is not an individual workweek total or a payroll calculation.

Match this example to your real roster

  1. Compare a known work date with the day, night, and off assignments in the table.
  2. Set the matching cycle reference date and choose your crew in the generator.
  3. Check one full cycle against your existing roster before printing or sharing. Record leave, swaps, and additional cover separately.

A crew is a group following the same rotation, not a single employee. The calendar does not calculate how many qualified people each shift needs.

How the DDNNOO schedule works

DDNNOO runs a 6-day cycle: two 12-hour day shifts, two 12-hour night shifts, then two days off. Unlike 2-2-3, each crew rotates through both day and night within the same short cycle. Three crews offset by two days keep one crew on days and one on nights every single day, so the site is covered 24/7 with just three teams.

Pros

  • Only three crews needed for 24/7
  • Never more than two shifts of one type in a row
  • Regular two-day breaks
  • Short, predictable cycle

Cons

  • Fast day-to-night flips are hard on sleep
  • Days off drift across the week
  • Less recovery than slower rotations

Who uses the DDNNOO pattern

Security firms, smaller manufacturing lines, dispatch and control rooms, and any 24/7 team that must cover the clock with only three crews.

Plan DDNNOO around the day-to-night change

This pattern’s defining feature is the move from two day shifts to two night shifts before the off block. Make that transition clear in the published calendar and ensure the crew knows which date begins the cycle. A wrong reference date produces a schedule that looks plausible but puts the day/night change in the wrong place.

Review the required roles across both shift types. A team may have enough people on each block but still miss a qualified lead, equipment operator, or escalation contact at night. Build that capability check into the planning process rather than relying on a headcount alone.

Use the two off days to preserve the base pattern, not as a place to hide ordinary staffing gaps. If training, leave, or overtime creates an exception, identify who approved it and update one current calendar so employees see the same information.

Pattern comparison

If you are deciding between nearby options, compare the weekly hours, longest work run, and biggest off block before you standardise the rota.

Pattern Avg hours / week Longest work run Longest off block Day/night arrangement
DDNNOO 56 4 days 2 days Rotates days and nights
4 On 2 Off 46.7 4 days 2 days Fixed shift per crew
Continental 42 7 days 3 days Rotates days and nights
Southern Swing 42 7 days 3 days Rotates days and nights

Figures describe the presets on this site, including runs across the cycle boundary. Weekly hours are cycle averages; actual workweek totals vary with the reference date. Compare the shift sequence and required coverage, not just the length of the break.

Frequently asked questions

What does DDNNOO stand for?

Day, Day, Night, Night, Off, Off — the six days of the cycle. Each crew works two days, two nights, then takes two days off.

How is DDNNOO different from 2-2-3?

DDNNOO rotates each crew through both day and night within one 6-day cycle and needs only three crews, whereas 2-2-3 usually keeps crews fixed on days or nights and uses four crews.