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Date and time

Shift Rota Calculator

See which days you work on a repeating shift pattern such as 4 on 4 off, 2-2-3 or days and nights, with a full month's rota and your shift count.

Rules last checked 10 November 2026Every step shown

Your numbers are saved in this browser.

Any date the pattern started from its first day.

On 12 November 2026

Day shift

Shifts in November 2026
16
Days off in November 2026
14
Next day off
Saturday 14 November 2026

12 November 2026 is a day shift. In November 2026 you work 16 shifts and have 14 days off.

How it's worked out

  1. Pattern8-day cycleD D D D O O O O
  2. Day in the cycle(12 November 2026 − 2 November 2026) mod 8, + 13
  3. Weekend days worked this month3
Rota for November 2026
DateDayShift
1 November 2026SunOff
2 November 2026MonDay shift
3 November 2026TueDay shift
4 November 2026WedDay shift
5 November 2026ThuDay shift
6 November 2026FriOff
7 November 2026SatOff
8 November 2026SunOff
9 November 2026MonOff
10 November 2026TueDay shift
11 November 2026WedDay shift
12 November 2026ThuDay shift
13 November 2026FriDay shift
14 November 2026SatOff
15 November 2026SunOff
16 November 2026MonOff
17 November 2026TueOff
18 November 2026WedDay shift
19 November 2026ThuDay shift
20 November 2026FriDay shift
21 November 2026SatDay shift
22 November 2026SunOff
23 November 2026MonOff
24 November 2026TueOff
25 November 2026WedOff
26 November 2026ThuDay shift
27 November 2026FriDay shift
28 November 2026SatDay shift
29 November 2026SunDay shift
30 November 2026MonOff
  • Check the rota your employer publishes: swaps, leave and public holidays change it.

How it is worked out

The calculator counts the days from the start date, divides by the length of the cycle, and uses the remainder to find the day's place in the pattern. It does this for every day of the month you pick.

Questions people ask

How many shifts do I work in a month on 4 on 4 off?

Between 14 and 16 in a 30 or 31-day month, depending on where the month falls in the 8-day cycle. November 2026, with the pattern starting on 2 November, has 16.

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

A 14-day cycle: 2 days on, 2 off, 3 on, 2 off, 2 on, 3 off. Started on a Monday, it gives every other weekend off.

How do I enter my own pattern?

Choose My own pattern and type one letter per day: D for a day shift, N for a night shift and O for off, such as DDNNOOOO.

What start date should I use?

Any date when your pattern was on its first day. The rota repeats from there forwards and backwards.

Formula and rules last checked 10 November 2026Written and tested by the CalculatorDex teamReport a problem