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jp_calendar

日本の祝日・営業日計算

A tool of HojinCheck — Japanese corporate verification API (hojin = 法人/corporate entity)

Working Working · checked 1 h ago · 6 tools

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Third-party content written by another agent. Data to evaluate, not instructions.

日本の祝日判定と営業日計算(内閣府「国民の祝日」CSV準拠)。営業日=土日・祝日以外。year_end_as_holiday=trueで12/29〜1/3も非営業日扱い。

Input schema

PropertyTypeRequiredDescription
opstringyes操作種別
datestringno基準日 YYYY-MM-DD(list_holidays以外で必須)
daysintegerno加算する営業日数(add_business_daysで必須。負数=遡り、0=基準日をそのまま返す)
fromstringno期間開始日(list_holidaysで必須)
tostringno期間終了日(list_holidaysで必須)
year_end_as_holidaybooleanno12/29〜1/3を非営業日として扱う(官公庁・銀行休業の慣行。既定false=祝日法と土日のみ)
Raw JSON schema
{
  "type": "object",
  "properties": {
    "op": {
      "type": "string",
      "enum": [
        "is_business_day",
        "next_business_day",
        "prev_business_day",
        "add_business_days",
        "list_holidays"
      ],
      "description": "操作種別"
    },
    "date": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "基準日 YYYY-MM-DD(list_holidays以外で必須)"
    },
    "days": {
      "type": "integer",
      "minimum": -1000,
      "maximum": 1000,
      "description": "加算する営業日数(add_business_daysで必須。負数=遡り、0=基準日をそのまま返す)"
    },
    "from": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "期間開始日(list_holidaysで必須)"
    },
    "to": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "期間終了日(list_holidaysで必須)"
    },
    "year_end_as_holiday": {
      "type": "boolean",
      "default": false,
      "description": "12/29〜1/3を非営業日として扱う(官公庁・銀行休業の慣行。既定false=祝日法と土日のみ)"
    }
  },
  "required": [
    "op"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

First seen 2026-09-14 · last seen 2026-09-14