{
  "source": "Korea Astronomy and Space Science Institute lunisolar calendar API joined with special days API",
  "provider": "Public Data Portal (data.go.kr)",
  "rawSpecialDaysFile": "scripts\\special-days-data\\output\\raw-special-days-items-2004-2028.json",
  "lunarDataDir": "data\\lunar",
  "generatedAt": "2026-07-07T11:33:47.627Z",
  "range": "2004~2028",
  "format": "potatospark-calendar-month-index-v1",
  "directories": {
    "byMonth": "by-month"
  },
  "stats": {
    "sourceRows": 3082,
    "usableRows": 3082,
    "skippedRows": 0,
    "categoryCounts": {
      "nationalHoliday": 454,
      "restDay": 430,
      "solarTerm": 600,
      "sundryDay": 197,
      "anniversary": 1401
    },
    "operationCounts": {
      "getHoliDeInfo": 454,
      "getRestDeInfo": 430,
      "get24DivisionsInfo": 600,
      "getSundryDayInfo": 197,
      "getAnniversaryInfo": 1401
    },
    "monthFiles": 300,
    "dayRows": 9132,
    "specialDayRows": 3082,
    "traditionalDayRows": 1710,
    "daysMissingLunar": 0
  },
  "fields": {
    "date": "Gregorian date YYYY-MM-DD",
    "solar": "Gregorian date parts and Korean weekday",
    "lunar": "Lunar date details for the Gregorian date",
    "days": "Deduplicated day labels from special-day API rows and derived traditional Korean calendar days",
    "flags": "Boolean display helpers derived from days"
  }
}