Its either work Monday – Thursday 2pm-10pm
(8 hour shift)
or
a shift which would be one week work Monday and Tuesday 6am-2pm (8 hour shift) and Friday Saturday Sunday 6am-6pm (12 hour shift) and the other week only work 6am-2pm (8 hour shift) Wednesday and Thursday and keep switching every other week.
1st option – works 16 days in a month for a total of 128 hours
2nd option – works 14 days for 136 hours.