calendar.txt: Dates for service IDs using a weekly schedule. Specify when service starts and ends, as well as days of the week where service is available.
| Column |
|---|
| service_id |
| monday |
| tuesday |
| wednesday |
| thursday |
| friday |
| saturday |
| sunday |
| start_date |
| end_date |
"service_id","monday","tuesday","wednesday","thursday","friday","saturday","sunday","start_date","end_date" "18 Parikka talvi","0","0","0","0","0","0","0","20190808","20200530" "19 Parikka Laajakoski talvi","0","0","0","0","0","0","0","20190808","20200530" "Aamuyön lisävuorot","0","0","0","0","0","0","0","20180603","20200531" "ErikoisPV","0","0","0","0","0","0","0","20180603","20200531"