calendar_dates.txt: Exceptions for the service IDs defined in the calendar.txt file. If calendar_dates.txt includes ALL dates of service, this file may be specified instead of calendar.txt.
| Column |
|---|
| service_id |
| date |
| exception_type |
service_id,date,exception_type 66001,20231123,2 66001,20231225,2 66002,20231123,2 66002,20231225,2