Rotating day and night shifts
What Is a 12-Hour Shift Schedule?
A 12-hour shift schedule splits the day into two shifts of 12 hours so two crews cover a full 24 hours.
How a 12-hour shift schedule works
Instead of three 8-hour shifts, a 12-hour schedule runs two shifts per day: a day shift and a night shift. Because each shift is longer, employees work fewer days, usually 3 or 4 a week, and get longer stretches of time off.
Most teams use a rotating pattern so the day and night sides stay fair. The four most common 12-hour patterns are 2-2-3, 2-3-2, Pitman, and DuPont. Each rotates day and night work across crews on a fixed cycle so the workplace stays staffed around the clock.
| Pattern | Cycle | Crews | Note |
|---|---|---|---|
| 2-2-3 | 14 days | 4 | Most popular rotating pattern |
| 2-3-2 | 14 days | 4 | Grouped work blocks, alternate weekends off |
| Pitman | 14 days | 2 | Fixed day and night crews |
| DuPont | 28 days | 4 | 7-day break every month |
| Crew | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | D | D | O | O | D | D | D | O | O | D | D | O | O | O |
| B | O | O | N | N | O | O | O | D | D | O | O | D | D | D |
| C | N | N | O | O | N | N | N | O | O | N | N | O | O | O |
| D | O | O | D | D | O | O | O | N | N | O | O | N | N | N |
12-hour shift schedule: pros and cons
Pros
- ·Only three or four work days a week
- ·More full days off
- ·Two shifts cover a full 24 hours
- ·Fewer shift handoffs each day
Cons
- ·12-hour shifts are physically tiring
- ·Rotating between day and night disrupts sleep
- ·Longer shifts leave less margin if someone calls out
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Frequently asked questions
What is a 12 hour shift schedule?
A 12-hour shift schedule runs two shifts per day of 12 hours each, so two crews cover a full 24 hours. Employees typically work 3 to 4 days a week.
What is a 12 hour rotating shift schedule?
In a rotating schedule, crews alternate between day and night shifts on a fixed cycle like 2-2-3 or DuPont, so no one is permanently stuck on nights.
How many days do you work on a 12 hour shift schedule?
Most 12-hour patterns average about 14 work days per 28, or 7 days out of every 14, with longer blocks of time off between them.
What is a 12 hour shift roster?
A 12-hour shift roster lists which crew is on day shift, night shift, or off for each date. You can generate one above and export it as CSV or PDF.
Is a 12 hour shift schedule hard on employees?
The long shifts are tiring, but employees get more full days off. The trade-off works well in manufacturing, healthcare, and security.