Skip to the content
LetRelay
Try LetRelay
Back to shift pattern calendar generator

4 weeks on 4 weeks off schedule calendar (28/28)

Twenty-eight days working, then twenty-eight days off, repeated. Two crews alternate, so one is always on site. That is about 183 shifts and 2,192 hours a year at 12 hours a shift, an average of 42 hours a week. Put your start date in below for your own 2027 calendar.

  • Free, no sign-up
  • Runs in your browser
  • Nothing uploaded or kept

How to use it

  1. Set your start date

    Enter a date from your roster that is the first day of a block, and say which block it is.

  2. Check the year

    Every shift and day off is drawn, with the hours a year, the days off and the weekends you have free.

  3. Print it or add it to your phone

    Download the calendar file, print the year, or copy the link to share it.

Pick a date you know from your roster; the whole year lines up with it.

Shift times and hours

56-day cycle: 28W 28O

Next 14 days

Shifts in 2027

196

Days off

169

of 365

Hours in 2027

2,352

12 h a shift

Average a week

42 h

Weekends fully off

24 of 52

Longest run

28 on

28 off at most

January 2027
MoTuWeThFrSaSu
Friday 1 January: shiftSaturday 2 January: shiftSunday 3 January: shift
Monday 4 January: shiftTuesday 5 January: shiftWednesday 6 January: shiftThursday 7 January: shiftFriday 8 January: shiftSaturday 9 January: shiftSunday 10 January: shift
Monday 11 January: shiftTuesday 12 January: shiftWednesday 13 January: shiftThursday 14 January: shiftFriday 15 January: shiftSaturday 16 January: shiftSunday 17 January: shift
Monday 18 January: shiftTuesday 19 January: shiftWednesday 20 January: shiftThursday 21 January: shiftFriday 22 January: shiftSaturday 23 January: shiftSunday 24 January: shift
Monday 25 January: shiftTuesday 26 January: shiftWednesday 27 January: shiftThursday 28 January: shiftFriday 29 January: day offSaturday 30 January: day offSunday 31 January: day off
February 2027
MoTuWeThFrSaSu
Monday 1 February: day offTuesday 2 February: day offWednesday 3 February: day offThursday 4 February: day offFriday 5 February: day offSaturday 6 February: day offSunday 7 February: day off
Monday 8 February: day offTuesday 9 February: day offWednesday 10 February: day offThursday 11 February: day offFriday 12 February: day offSaturday 13 February: day offSunday 14 February: day off
Monday 15 February: day offTuesday 16 February: day offWednesday 17 February: day offThursday 18 February: day offFriday 19 February: day offSaturday 20 February: day offSunday 21 February: day off
Monday 22 February: day offTuesday 23 February: day offWednesday 24 February: day offThursday 25 February: day offFriday 26 February: shiftSaturday 27 February: shiftSunday 28 February: shift
March 2027
MoTuWeThFrSaSu
Monday 1 March: shiftTuesday 2 March: shiftWednesday 3 March: shiftThursday 4 March: shiftFriday 5 March: shiftSaturday 6 March: shiftSunday 7 March: shift
Monday 8 March: shiftTuesday 9 March: shiftWednesday 10 March: shiftThursday 11 March: shiftFriday 12 March: shiftSaturday 13 March: shiftSunday 14 March: shift
Monday 15 March: shiftTuesday 16 March: shiftWednesday 17 March: shiftThursday 18 March: shiftFriday 19 March: shiftSaturday 20 March: shiftSunday 21 March: shift
Monday 22 March: shiftTuesday 23 March: shiftWednesday 24 March: shiftThursday 25 March: shiftFriday 26 March: day offSaturday 27 March: day offSunday 28 March: day off
Monday 29 March: day offTuesday 30 March: day offWednesday 31 March: day off
April 2027
MoTuWeThFrSaSu
Thursday 1 April: day offFriday 2 April: day offSaturday 3 April: day offSunday 4 April: day off
Monday 5 April: day offTuesday 6 April: day offWednesday 7 April: day offThursday 8 April: day offFriday 9 April: day offSaturday 10 April: day offSunday 11 April: day off
Monday 12 April: day offTuesday 13 April: day offWednesday 14 April: day offThursday 15 April: day offFriday 16 April: day offSaturday 17 April: day offSunday 18 April: day off
Monday 19 April: day offTuesday 20 April: day offWednesday 21 April: day offThursday 22 April: day offFriday 23 April: shiftSaturday 24 April: shiftSunday 25 April: shift
Monday 26 April: shiftTuesday 27 April: shiftWednesday 28 April: shiftThursday 29 April: shiftFriday 30 April: shift
May 2027
MoTuWeThFrSaSu
Saturday 1 May: shiftSunday 2 May: shift
Monday 3 May: shiftTuesday 4 May: shiftWednesday 5 May: shiftThursday 6 May: shiftFriday 7 May: shiftSaturday 8 May: shiftSunday 9 May: shift
Monday 10 May: shiftTuesday 11 May: shiftWednesday 12 May: shiftThursday 13 May: shiftFriday 14 May: shiftSaturday 15 May: shiftSunday 16 May: shift
Monday 17 May: shiftTuesday 18 May: shiftWednesday 19 May: shiftThursday 20 May: shiftFriday 21 May: day offSaturday 22 May: day offSunday 23 May: day off
Monday 24 May: day offTuesday 25 May: day offWednesday 26 May: day offThursday 27 May: day offFriday 28 May: day offSaturday 29 May: day offSunday 30 May: day off
Monday 31 May: day off
June 2027
MoTuWeThFrSaSu
Tuesday 1 June: day offWednesday 2 June: day offThursday 3 June: day offFriday 4 June: day offSaturday 5 June: day offSunday 6 June: day off
Monday 7 June: day offTuesday 8 June: day offWednesday 9 June: day offThursday 10 June: day offFriday 11 June: day offSaturday 12 June: day offSunday 13 June: day off
Monday 14 June: day offTuesday 15 June: day offWednesday 16 June: day offThursday 17 June: day offFriday 18 June: shiftSaturday 19 June: shiftSunday 20 June: shift
Monday 21 June: shiftTuesday 22 June: shiftWednesday 23 June: shiftThursday 24 June: shiftFriday 25 June: shiftSaturday 26 June: shiftSunday 27 June: shift
Monday 28 June: shiftTuesday 29 June: shiftWednesday 30 June: shift
July 2027
MoTuWeThFrSaSu
Thursday 1 July: shiftFriday 2 July: shiftSaturday 3 July: shiftSunday 4 July: shift
Monday 5 July: shiftTuesday 6 July: shiftWednesday 7 July: shiftThursday 8 July: shiftFriday 9 July: shiftSaturday 10 July: shiftSunday 11 July: shift
Monday 12 July: shiftTuesday 13 July: shiftWednesday 14 July: shiftThursday 15 July: shiftFriday 16 July: day offSaturday 17 July: day offSunday 18 July: day off
Monday 19 July: day offTuesday 20 July: day offWednesday 21 July: day offThursday 22 July: day offFriday 23 July: day offSaturday 24 July: day offSunday 25 July: day off
Monday 26 July: day offTuesday 27 July: day offWednesday 28 July: day offThursday 29 July: day offFriday 30 July: day offSaturday 31 July: day off
August 2027
MoTuWeThFrSaSu
Sunday 1 August: day off
Monday 2 August: day offTuesday 3 August: day offWednesday 4 August: day offThursday 5 August: day offFriday 6 August: day offSaturday 7 August: day offSunday 8 August: day off
Monday 9 August: day offTuesday 10 August: day offWednesday 11 August: day offThursday 12 August: day offFriday 13 August: shiftSaturday 14 August: shiftSunday 15 August: shift
Monday 16 August: shiftTuesday 17 August: shiftWednesday 18 August: shiftThursday 19 August: shiftFriday 20 August: shiftSaturday 21 August: shiftSunday 22 August: shift
Monday 23 August: shiftTuesday 24 August: shiftWednesday 25 August: shiftThursday 26 August: shiftFriday 27 August: shiftSaturday 28 August: shiftSunday 29 August: shift
Monday 30 August: shiftTuesday 31 August: shift
September 2027
MoTuWeThFrSaSu
Wednesday 1 September: shiftThursday 2 September: shiftFriday 3 September: shiftSaturday 4 September: shiftSunday 5 September: shift
Monday 6 September: shiftTuesday 7 September: shiftWednesday 8 September: shiftThursday 9 September: shiftFriday 10 September: day offSaturday 11 September: day offSunday 12 September: day off
Monday 13 September: day offTuesday 14 September: day offWednesday 15 September: day offThursday 16 September: day offFriday 17 September: day offSaturday 18 September: day offSunday 19 September: day off
Monday 20 September: day offTuesday 21 September: day offWednesday 22 September: day offThursday 23 September: day offFriday 24 September: day offSaturday 25 September: day offSunday 26 September: day off
Monday 27 September: day offTuesday 28 September: day offWednesday 29 September: day offThursday 30 September: day off
October 2027
MoTuWeThFrSaSu
Friday 1 October: day offSaturday 2 October: day offSunday 3 October: day off
Monday 4 October: day offTuesday 5 October: day offWednesday 6 October: day offThursday 7 October: day offFriday 8 October: shiftSaturday 9 October: shiftSunday 10 October: shift
Monday 11 October: shiftTuesday 12 October: shiftWednesday 13 October: shiftThursday 14 October: shiftFriday 15 October: shiftSaturday 16 October: shiftSunday 17 October: shift
Monday 18 October: shiftTuesday 19 October: shiftWednesday 20 October: shiftThursday 21 October: shiftFriday 22 October: shiftSaturday 23 October: shiftSunday 24 October: shift
Monday 25 October: shiftTuesday 26 October: shiftWednesday 27 October: shiftThursday 28 October: shiftFriday 29 October: shiftSaturday 30 October: shiftSunday 31 October: shift
November 2027
MoTuWeThFrSaSu
Monday 1 November: shiftTuesday 2 November: shiftWednesday 3 November: shiftThursday 4 November: shiftFriday 5 November: day offSaturday 6 November: day offSunday 7 November: day off
Monday 8 November: day offTuesday 9 November: day offWednesday 10 November: day offThursday 11 November: day offFriday 12 November: day offSaturday 13 November: day offSunday 14 November: day off
Monday 15 November: day offTuesday 16 November: day offWednesday 17 November: day offThursday 18 November: day offFriday 19 November: day offSaturday 20 November: day offSunday 21 November: day off
Monday 22 November: day offTuesday 23 November: day offWednesday 24 November: day offThursday 25 November: day offFriday 26 November: day offSaturday 27 November: day offSunday 28 November: day off
Monday 29 November: day offTuesday 30 November: day off
December 2027
MoTuWeThFrSaSu
Wednesday 1 December: day offThursday 2 December: day offFriday 3 December: shiftSaturday 4 December: shiftSunday 5 December: shift
Monday 6 December: shiftTuesday 7 December: shiftWednesday 8 December: shiftThursday 9 December: shiftFriday 10 December: shiftSaturday 11 December: shiftSunday 12 December: shift
Monday 13 December: shiftTuesday 14 December: shiftWednesday 15 December: shiftThursday 16 December: shiftFriday 17 December: shiftSaturday 18 December: shiftSunday 19 December: shift
Monday 20 December: shiftTuesday 21 December: shiftWednesday 22 December: shiftThursday 23 December: shiftFriday 24 December: shiftSaturday 25 December: shiftSunday 26 December: shift
Monday 27 December: shiftTuesday 28 December: shiftWednesday 29 December: shiftThursday 30 December: shiftFriday 31 December: day off
  • W shift
  • · day off
See every crew side by side

With all the crews working this pattern, exactly one crew is on every day. One cycle of 56 days, then it repeats.

Day1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556
Your crewWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshift·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off
Other crew·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day off·day offWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshiftWshift

Check the result against your roster: employers run these patterns in slightly different ways.

How the 4 weeks on 4 weeks off pattern works

The 56-day cycle gives six or seven long trips a year. It is one of the longest rotations in regular use, so the hours and the weeks away matter more than the days of the week.

Also searched for as: 28 on 28 off, 28/28 rotation, 28 days on 28 days off.

The cycle is 56 days long: 28 shifts, 28 days off, and then it starts again.

The blocks of the cycle

BlockWhatDays of the cycle
128 shiftsDays 1 to 28
228 days offDays 29 to 56

The numbers

Cycle length56 days
Shifts in a cycle28 of 56 days
Shifts a yearabout 183
Days off a yearabout 183
Hours a year (at 12 h a shift)about 2,192
Average hours a week42
Longest run of shifts28
Longest break28 days

A year is 365.25 days on average, so the yearly figures are averages; the calendar above counts the exact days of the year you pick.

Good and bad about 4 weeks on 4 weeks off

In its favour

  • Very few trips
  • A full month at home each cycle
  • Half the year free

Against it

  • A month away at a time
  • Little flexibility for family events
  • Rest and fatigue need planning inside the hitch

Who uses 4 weeks on 4 weeks off

Used for remote mining, polar and island stations, ships and similar sites where reaching the workplace is slow or costly.

Employers run these patterns in slightly different ways, and a union contract or roster can differ from the version here. The grid above is exact for the cycle shown: if your roster differs, choose “My own cycle” in the calendar and type it in.

Other shift patterns

All shift patterns and the cycle builder

Frequently asked questions

How many hours a week is 4 weeks on 4 weeks off?

On average 42 hours a week, at 12 hours a shift: 28 shifts in every 56-day cycle. The weeks are not all alike, so a single week can hold more or fewer hours than the average. Change the shift length in the calendar and every number follows.

How many days off a year do I get on 4 weeks on 4 weeks off?

About 183 days off in a 365-day year and about 183 shifts, with a longest run of 28 shifts and a longest break of 28 days. Put your real start date in the calendar for the exact count in your year, including how many weekends are fully off.

How many weeks on and off is 28 days on 28 days off?

Four weeks on, four weeks off. Over a year it is about 26 weeks of work: half the year.

Can I put the 4 weeks on 4 weeks off pattern in Google Calendar or on my phone?

Yes. Pick your start date, press Add to my calendar, and open the .ics file in Google Calendar, Apple Calendar or Outlook. Each shift has a fixed ID, so importing the file again later replaces your shifts instead of adding a second set.

More free tools

  • AoE deadline converter

    Turn an Anywhere on Earth deadline into your time zone, with a live countdown and a calendar file.

    Open the tool

  • PhD and research proposal Gantt chart maker

    Start from a PhD, master's or proposal timeline, edit the tasks and download the chart as an image.

    Open the tool

  • Dissertation word count breakdown

    Words per chapter for any word limit, and how many words a day to finish by your deadline.

    Open the tool

  • Person-months and percent effort calculator

    Convert percent effort to person-months and back, for 12, 9 and 3-month appointments or an EU-style FTE.

    Open the tool

  • Grant burn rate calculator

    Burn ratio, runway and run-out date for a grant, with commitments counted.

    Open the tool

  • Custody schedule calendar generator

    2-2-3, 2-2-5-5, 3-4-4-3, week on week off: see the year, the split and the handovers, then print it.

    Open the tool

  • Free PDF tools

    Merge, split, reorder, rotate and compress PDFs to a size you choose, and turn pictures into PDFs and back. In your browser: no upload, no limits.

    Open the tool