service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
cal1-fri,0,0,0,0,1,0,0,20260102,20260227
cal2-thu-sat,0,0,0,1,0,1,0,20260103,20260228
cal3-mon-tue-wed,1,1,1,0,0,0,0,20260105,20260225
cal4-mon-tue,1,1,0,0,0,0,0,20260105,20260224
cal5-wed,0,0,1,0,0,0,0,20260107,20260225
cal6-sat,0,0,0,0,0,1,0,20260103,20260228