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Workday Calendar API – Business Day Count
x402
Workday Calendar API – Business Day Count is a paid API for AI agents from workday-calendar.regnotes.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Returns the number of business days between two dates (inclusive) for a given country, along with any public holidays that fell on weekdays in that range.
Price / call$0.002
Success—
StatusUnknown
How this service works
Number of business days in [start, end] inclusive (max 3 years), with the holidays that fell on weekdays.
Output
A JSON object containing the start date, end date, country code, the count of business days in the range (inclusive), the total calendar days, and an array of holiday objects (each with a date and name) that fell on weekdays within the range.
Example use cases
Contract SLA deadline calculation
“I need to know how many business days there are between June 1 and June 30, 2025 in the UK so I can verify whether a 20-business-day SLA window fits within the month.”
Payroll period working day count
“Can you tell me how many working days are in the Canadian pay period from October 1 to October 31, 2025, and which statutory holidays land on weekdays?”
Project timeline estimation
“How many business days do we have between March 15 and April 30, 2025 in Germany? I'm planning a sprint and need to know the actual working days, accounting for German public holidays.”
Technical details
Endpoint
GEThttps://workday-calendar.regnotes.workers.dev/v1/business-days/count?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a precise count of business days between two dates for a specific country, including awareness of that country's national public holidays. It supports over 50 countries and handles up to a 3-year window. Prefer this over generic date-math libraries when holiday-awareness and multi-country support are required.
Side effects
- Invalid date format (must be YYYY-MM-DD) returns a validation error
- Date range exceeds 3 years returns an error
- Unsupported country code returns a validation error
- start date after end date may return zero or an error
- Missing required query parameters (country, start, end) returns a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"end": "2026-12-31",
"start": "2026-12-01",
"country": "GB",
"business_days": 21,
"calendar_days": 31,
"holidays_on_weekdays": [
{
"date": "2026-12-25",
"name": "Christmas Day"
},
{
"date": "2026-12-28",
"name": "Boxing Day (observed)"
}
]
}
}Tags
x402
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