timeframe_group_id,service_id,start_time,end_time
fare-free,S2312-Satco-Saturday-02,,
fare-free,S2312-Satco-Sunday-02,,
fare-free,N2312-VATCo-Saturday-99,,
fare-free,N2312-VATCo-Sunday-99,,
fare-free,H2312-Hulmes-Saturday-01,,
