4 on 4 off calendar
Work 4 days, then 4 days off. a 8-day cycle, 181 to 184 work days in 2027 depending on your start date.
Pick the first day of your cycle below to see every shift for the year.
Today: Day shift
Next shift: Wed 4 Nov, Day shift (in 12 days)
Next days off: 4 days from Wed 4 Nov (in 12 days)
Pick the first day of your first work block
Optional. Nothing after it shows or exports
Your calendar app checks the calendar link for changes. It follows this roster only. If you change your pattern, dates or swaps later, add the new link.
4 on 4 off in numbers
| Cycle length | 8 days (4 on, 4 off) |
|---|---|
| Longest run of work days | 4 |
| Cycles in a year | 45.6 |
| Work days in 2027 | 181 to 184 |
| Weekend days worked in 2027 | 49 to 55 |
| Same weekday comes round again | every 56 days |
The cycle is 8 days and a week is 7, so your weekdays shift every cycle and the same weekday only repeats every 56 days. That is why weekends seem to wander through the year.
Figures are worked out from the pattern for 2027 and cover every possible start date. They count dates only, so check your official roster before booking anything. Updated 2026-11-04.