You can access the Japan Business Day & Holiday Calculator (営業日・祝日・和暦) programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1from apify_client import ApifyClient
2
3# Initialize the ApifyClient with your Apify API token
4# Replace '<YOUR_API_TOKEN>' with your token.
5client = ApifyClient("<YOUR_API_TOKEN>")
6
7# Prepare the Actor input
8run_input = { "tasks": [
9        {
10            "type": "addBusinessDays",
11            "date": "2026-10-30",
12            "days": 3,
13        },
14        {
15            "type": "isBusinessDay",
16            "date": "2026-11-03",
17        },
18        {
19            "type": "businessDaysBetween",
20            "from": "2026-10-01",
21            "to": "2026-11-01",
22        },
23        {
24            "type": "holidays",
25            "year": 2027,
26        },
27        {
28            "type": "toWareki",
29            "date": "2026-10-14",
30        },
31        {
32            "type": "fromWareki",
33            "text": "令和元年5月1日",
34        },
35        {
36            "type": "info",
37            "date": "2026-12-31",
38        },
39    ] }
40
41# Run the Actor and wait for it to finish
42run = client.actor("fontom.ai.plus/japan-business-calendar").call(run_input=run_input)
43
44# Fetch and print Actor results from the run's dataset (if there are any)
45print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
46for item in client.dataset(run.default_dataset_id).iterate_items():
47    print(item)
48
49# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

Japan Business Days & Holidays API (営業日・祝日) API in Python

The Apify API client for Python is the official library that allows you to use Japan Business Day & Holiday Calculator (営業日・祝日・和暦) API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

Other API clients include:

Japan Business Day & Holiday Calculator (営業日・祝日・和暦) API in JavaScript

Japan Business Day & Holiday Calculator (営業日・祝日・和暦) API through CLI

Japan Business Day & Holiday Calculator (営業日・祝日・和暦) OpenAPI definition

Japan Business Day & Holiday Calculator (営業日・祝日・和暦) API

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