Japanese business-day calculator
Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
359 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://kaisha-api.hp-vladic.workers.dev/calendar/business-days
| Category | Everything else |
|---|---|
| Provider host | kaisha-api.hp-vladic.workers.dev |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 359 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"add": 5,
"from": "2026-07-17"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"add": {
"description": "Add N business days (mode A)",
"type": "number"
},
"from": {
"description": "Start date YYYY-MM-DD",
"type": "string"
},
"new_year_break": {
"type": "boolean"
},
"saturday_off": {
"type": "boolean"
},
"to": {
"description": "End date YYYY-MM-DD (mode B: count)",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}