I work 1st shift and some times 2nd shift.
B shift in manufacturing usually is a 12 hour night shift
2nd shift. i had to work from 4pm to 12am or 4am
Answered - Forklift Operator (Current Employee) - Dalton, GA
Answered - Machine operator (Current Employee) - Roanoke, AL
A 12 hour crew
Answered - Supervisor I (Former Employee) - Danville, VA
Usually a typical "B" shift is 3pm to 11pm at most companies; However, some companies use A, B, & C shift designations when referencing shift rotation for days work/days off & then sub-designation with time shift schedule to work e.g. 7-3, 3-11, 11-7 "shift work". But not to say it may mean something entirely unique with the specific company.