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Guide · Nursing

Nurse shift patterns, explained

E · L · N and the post-nights day off: here is what they really mean, and the three patterns hospitals use most (rotating, 12-hour and the 2-2-3 schedule), drawn as they look on a real rota. No fluff.

Updated: August 2026

What each rota code means

Most nursing rotas use the same shorthand. Exact times vary by hospital; the colours below are the ones Kuadri uses:

  • E
    Early. Usually 7am to 3pm.
  • L
    Late. 1pm to 9pm, give or take.
  • N
    Night. 9pm to 7:30am; it crosses midnight.
  • S
    Post-nights day off. The day you come off a night shift in the morning. Not a real day off: you worked until breakfast and spend the day catching up on sleep.
  • O
    Day off. A real day off, no shift and no sleep debt.
The post-nights day off is the classic trap when counting rest: on paper you are not working, but your body has. If your unit counts it as leave, your real rest is less than the rota suggests.

The rotating E-L-N pattern

The ward classic: you rotate through earlies, lates and nights, with a post-nights day after each run of nights. One week can look like this:

MTWTFSS
E
E
L
L
N
N
S

And the following Monday is off. The wheel starts again wherever it left you.

≈37.5 haverage per week
5–7nights a month
1–2free weekends a month
  • Shares the good and the bad across the team
  • Nobody carries all the nights
  • Your body never settles into a sleep routine
  • Planning life beyond next week is hard
  • Post-nights days eat into what looks like rest

12-hour shifts

Two blocks, day (8am–8pm) and night (8pm–8am), typical of ICU and A&E. You concentrate the hours into fewer days:

MTWTFSS
D12 h
D12 h
·
·
N12 h
N12 h
S

Four shifts and you have done 48 hours. The rest of the week is yours (and the sofa's).

12 hper shift
3–4working days a week
6–7nights a month if you rotate
  • Many more days off per month
  • Fewer commutes to the hospital
  • Hour 11 is nothing like hour 2
  • On working days you disappear for your family

The 2-2-3 (Panama) schedule

The 2-2-3 repeats a two-week cycle: work 2, off 2, work 3; the next week inverts. Look at the whole cycle, because its selling point is visible:

MTWTFSS
D12 h
D12 h
·
·
D12 h
D12 h
D12 h
·
·
D12 h
D12 h
O
O
O

Week 1 you work the weekend; week 2 you get it off in full, Friday to Sunday. And so on every two weeks, forever: you can plan life months ahead.

3consecutive days at most
2fixed free weekends a month
14 daysand the cycle repeats
  • Never more than 3 days in a row
  • You know your free weekends months ahead
  • Usually paired with 12-hour shifts
  • Half your weekends are still working weekends

The three patterns, side by side

One row per pattern, so you can compare what each trades off:

PatternShift lengthMax days in a rowFree weekendsTypical of
Rotating E-L-N7–10 h5–61–2 a monthGeneral wards
12-hour shifts12 h3–4Varies by rotaICU, A&E
2-2-3 (Panama)12 h32 a month, fixedContinuous cover units

What your rota must respect

Whatever the pattern, minimum rest rules apply. In the UK these come from the Working Time Regulations; most of Europe transposes the same EU directive:

11 hof rest between the end of one shift and the start of the next (UK WTR / EU Working Time Directive).
24 hof uninterrupted weekly rest (or 48 h per fortnight), on top of the daily 11.
Your contractsets the rest: how post-nights days count, maximum runs of nights, and compensation. It is the one that rules.

The problem is never the pattern

Any of the three can work. What burns people out is not knowing next month's rota, last-minute swaps with colleagues, and counting nights by hand to check the night differential on your payslip.

How Kuadri handles it

Kuadri ships these rotations built in. Pick your pattern (rotating E-L-N, 12-hour, 2-2-3, DuPont, Pitman, 4-4…) and the months fill themselves in. Swaps with colleagues are logged with a who-owes-whom balance, pay is worked out minute by minute with night, weekend and holiday differentials, and your family can see when you are off, never what you earn.

The app is free, works without an account and offline, and has no ads.

Kuadri screen with rotation presets: pick a pattern and the months fill themselves in

Quick questions

What do E, L and N mean on a rota?

The three classic shifts: E is early (usually 7am–3pm), L is late (1pm–9pm) and N is night (9pm–7:30am). Exact times vary by hospital; the codes are near-universal.

What is a post-nights day off?

The day you come off a night shift in the morning. Not a real day off: you worked until the morning and spend the day recovering sleep, which is why good rotas count it separately from leave.

What is the 2-2-3 or Panama schedule?

A two-week cycle: work 2, off 2, work 3, then it inverts. Never more than 3 days in a row, and every other weekend off.

How do 12-hour nursing shifts work?

Two blocks, day (8am–8pm) and night (8pm–8am). More days off in exchange for much longer shifts. Common in ICU and A&E.

How do I keep my rota on my phone?

Pick your pattern once in Kuadri and the months fill themselves in. Swaps stay logged, pay is calculated with your differentials, and your family can see when you are off. Free, no account.

Note: exact times, how post-nights days are counted and rest rules come from your hospital and your contract; this guide is general information to orient you.

Your rota, filled in for you.

Pick the pattern once and Kuadri does the rest. Free, already on the App Store.

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