I work 17 in 28. 6/5, 6/3, 5/3. Only one weekend off a month.
There's OT there by the bucketful if you want it. Its not mandatory!
Days start between 0545 and 0630, finish between 1400 and 1530.
Swing shift is either 1130-2000 or 1300-2130.
Evenings start between 1400 and 1515, finish between 2200 and 0015.
Midnights are 0000 to 0700.
We have the 0545-1400 followed by 0000-0700 too. I do maybe 1 or 2 cycles of midnights in a 56 day period. The rest are all evenings by choice. Patterns can vary but most do days then eves.
At least 10 hours between shifts, maximum of 9 work days permitted, but as I said, OT is voluntary to a max of 96 hours in 56 days, paid at double time.
Shift Logic is "optimised" to have people there at the times when they are needed, allegedly.