Compare the 14-day fixed version with the 28-day rotating version implemented by this generator. Both use four crew phases and continuous 12-hour Day/Night coverage.
Internal review Aug 6, 2026 · No external review
Pattern 2-2-3-fixed@1
2-2-3 fixed · version 1
A 14-day fixed day/night pattern with two-on, two-off, three-on blocks.
Cycle length
14 days
Required crew phases
4
Average planned hours per crew per week
42 planned hours
Longest consecutive shift stretch
3 shifts
Longest break in the cycle
3 days
Day
7 shifts
Night
0 shifts
Implemented crew-phase matrix
Exact version 2-2-3-fixed@1 cycle. D is Day, N is Night, and O is Off.
Crew
Day 11
Day 22
Day 33
Day 44
Day 55
Day 66
Day 77
Day 88
Day 99
Day 1010
Day 1111
Day 1212
Day 1313
Day 1414
Phase 1
D
D
O
O
D
D
D
O
O
D
D
O
O
O
Phase 2
O
O
D
D
O
O
O
D
D
O
O
D
D
D
Phase 3
N
N
O
O
N
N
N
O
O
N
N
O
O
O
Phase 4
O
O
N
N
O
O
O
N
N
O
O
N
N
N
Pattern 2-2-3-rotating@1
2-2-3 rotating · version 1
A 28-day version that rotates each crew between day and night blocks.
Cycle length
28 days
Required crew phases
4
Average planned hours per crew per week
42 planned hours
Longest consecutive shift stretch
3 shifts
Longest break in the cycle
3 days
Day
7 shifts
Night
7 shifts
Implemented crew-phase matrix
Exact version 2-2-3-rotating@1 cycle. D is Day, N is Night, and O is Off.
Crew
Day 11
Day 22
Day 33
Day 44
Day 55
Day 66
Day 77
Day 88
Day 99
Day 1010
Day 1111
Day 1212
Day 1313
Day 1414
Day 1515
Day 1616
Day 1717
Day 1818
Day 1919
Day 2020
Day 2121
Day 2222
Day 2323
Day 2424
Day 2525
Day 2626
Day 2727
Day 2828
Phase 1
D
D
O
O
D
D
D
O
O
D
D
O
O
O
N
N
O
O
N
N
N
O
O
N
N
O
O
O
Phase 2
O
O
D
D
O
O
O
D
D
O
O
D
D
D
O
O
N
N
O
O
O
N
N
O
O
N
N
N
Phase 3
N
N
O
O
N
N
N
O
O
N
N
O
O
O
D
D
O
O
D
D
D
O
O
D
D
O
O
O
Phase 4
O
O
N
N
O
O
O
N
N
O
O
N
N
N
O
O
D
D
O
O
O
D
D
O
O
D
D
D
How this implementation behaves
In the fixed variant, two crews remain on Day and two remain on Night. In the rotating variant, the second half of the 28-day cycle exchanges those day/night roles.
Fixed and rotating 2-2-3 are different schedules
The 14-day fixed implementation keeps two phases on Day and two on Night. The 28-day rotating implementation uses the same first-half rhythm, then exchanges those Day and Night roles for the second 14 days before repeating.
Anchor the two-day block to a known roster date
In phase 1, cycle day 1 starts a two-day Day block. The fixed version repeats after 14 days; the rotating version starts the corresponding Night block on day 15. Use a date and crew assignment that you can confirm in an approved roster before treating the generated dates as aligned.
Common 2-2-3 setup errors
Treating the 2-2-3 or Panama name as a complete specification instead of checking the displayed D/N/O sequence.
Choosing the 14-day fixed version while expecting each crew to rotate between Day and Night.
Assigning local Crew A–D labels by display order without confirming which phase each crew follows on the anchor date.
Verify these items before operational use
Align cycle day 1 with a known date from an approved source schedule; a wrong anchor shifts every assignment.
Confirm that each real crew maps to the intended phase instead of assuming the displayed phase order matches local labels.
Confirm the local Day and Night endpoints. Changing them can create real gaps, overlaps, or daylight-saving duration warnings.
Review member exceptions, minimum rest, staffing targets, qualifications, leave, agreements, and local rules outside this template.
Implementation status and source boundary
Implemented versions
2-2-3-fixed@1, 2-2-3-rotating@1 in the site template registry
Internal content review
Aug 6, 2026
External review
Not completed
These matrices are the site's versioned 2-2-3 implementations. Automated checks verify cycle length, four crew phases, and one Day plus one Night crew per service date. They have not been approved as an external industry standard or validated against your workplace roster.
