CALENDAR_DATES.TXT

http://data.foli.fi/gtfs/calendar_dates
{
    "A:F\u00d6LI_Kes\u00e4_2015_ver3": [
        {
            "date": "20150601",
            "exception_type": 0
        },
/* ...(snip)... */
        {
            "date": "20150626",
            "exception_type": 0
        }
    ],
    "S:F\u00d6LI_Kes\u00e4_2015_ver3": [
        {
            "date": "20150607",
            "exception_type": 0
        },
        {
            "date": "20150614",
            "exception_type": 0
        },
        {
            "date": "20150621",
            "exception_type": 0
        },
        {
            "date": "20150628",
            "exception_type": 0
        }
    ]
}