biweekly. 6am-2pm, 7a-3pm, 3pm-11pm, 10pm-6am, 11pm-7am, 12mid- 8 am.. Sun, Mon... nights means ur off from saturday morning to monday night, Fri Sat.....nights means ur off thurs morning to satuday night... sat/sun for day crew, and other days off as well, On nights tracks calender day is actually the date after.. so if u come in on monday july 3 at 10pm..., ur acutally day of duty is tues july 4... 40 HR WEEK, 8hrs and day.