The repeating eight-day cycle
The base sequence is simple: work four days, rest four days, repeat. What often causes confusion is the calendar movement. If the first block begins on Monday, the next begins on Tuesday, then Wednesday, because each full cycle is one day longer than a seven-day week.
Work block
Record the actual start and end time for each shift.
Rest block
Four scheduled rest days before the next cycle.
Moves by one weekday
The next work block starts one weekday later.
Days and nights may follow another rule
The work/rest pattern does not say whether a block is made of day shifts or night shifts. Some employees stay on one shift time. Others rotate after a set number of cycles. Record the time assignment explicitly and avoid using color as the only distinction.
Confirm the first workday
- Choose the first date in a confirmed four-shift block.
- Verify that four rest days follow it.
- Check the next work block and its day/night assignment.
- Review exceptions such as overtime, swaps, training, or leave separately.
What to review across a month
Look at consecutive shifts, weekend frequency, cross-midnight work, total hours, travel between workplaces, and changes between day and night blocks. Weekly totals can look uneven because a payroll week may split a four-day block.
A correct repeating sequence can still be wrong for your team if the anchor date or shift-time assignment is different. Verify generated dates before setting reminders or planning around them.
Generate a calendar preview
The free generator maps the work/rest cycle over four, six, or eight weeks. It runs locally and does not upload your selected date.
Generate a 4-on/4-off schedule
Start from one confirmed workday and review the repeating blocks before adding details.