Mine might be the most confusing. 2 seven day shift, followed by a 5, followed by a 4, it goes like this
Start my rotation:
1st week Night shift
Wednesday night to the next Wednesday morning 3rd shift
2245-0645 Wednesday and Thursday nights
2245-0900 Friday night
2045-0900 Saturday night
2045-0645 Sunday night
2245-0645 Monday and Tuesday nights
Off Wednesday and Thursday
2nd Week Evening shift
1500-2300 Friday
0845-2100 Saturday
0845-2100 Sunday
1500-2300 Monday thru Thursday
Off Friday, Saturday and Sunday
3rd Week
0630-1515 Monday thru Friday
Off Saturday and Sunday
4th week
I can work whatever I want
I usually work
0630-1630 Monday thru Thursday
Off Friday thru Wednesday and start the rotation over the next Wednesday.
I sometimes get sick of working the weekends but days off thru the week come in handy and it's especially nice to take a week of vacation in the 4th week and be off for 13 days and even better to take off the 2 day shifts, use 80 hours vacation, and be off for 20 days.
We use to work 3 weekends in a row (all 8 hour shifts) and about 15 years ago, I came up with this rotation to give us an extra weekend off, everyone liked it and we still use it today