service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date sat,0,0,0,0,0,1,0,20160601,20180301 sun,0,0,0,0,0,0,1,20160601,20180301 mtwtf,1,1,1,1,1,0,0,20160601,20180301 wtf,0,0,1,1,1,0,0,20160601,20180301 mt,1,1,0,0,0,0,0,20160601,20180301