For 24x7 production operations, 12 hour shifts make a lot of sense. You work 12 hours, hand off your role to the next incoming shift, and 12 hours later they ha

For 24x7 production operations, 12 hour shifts make a lot of sense. You work 12 hours, hand off your role to the next incoming shift, and 12 hours later they hand off back to you. You do this for 3 days one week, 4 days the next. 4 hours of OT every day. I did this for 2 years at an LSI fab in Colorado Springs and it was great.