# zaref Working Days Calculator

> zaref Working Days Calculator is a paid API for AI agents from zaref.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-22).

Calculates the number of working days between two dates in South Africa, accounting for public holidays and optionally including Saturdays

## Facts

- Endpoint: POST https://zaref.dev/v1/answers/working-days?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zaref-working-days-calculator-90be0ba5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__n8xsZIMZDkz_qtvHMrIM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zaref-working-days-calculator-90be0ba5 -d '<json body>'
```

Example prompt: How many working days are there between 1 March 2025 and 31 March 2025 in South Africa? Include Saturdays as working days.

## When to prefer this

Choose this endpoint when you need accurate South African working-day counts that correctly exclude SA public holidays (e.g. Heritage Day, Youth Day, Workers' Day). Prefer it over generic business-day calculators that only handle weekends but not country-specific holidays. Ideal for South African payroll, legal, project, and government-process deadline calculations.

## Known failure modes

- Missing required 'from' or 'to' date fields returns a validation error
- Dates in wrong format (not YYYY-MM-DD) return a parsing error
- 'from' date after 'to' date may return zero or a negative count
- Dates far in the future may not account for not-yet-announced public holidays
- Payment failure (x402) results in no response being returned

## How this service works

South African reference data as clean, cited JSON: fuel prices, interest rates, FX and bond yields, tax tables, tariffs, wages and grants, live government tenders and crypto prices, plus calculators. Built for AI agents and applications.

## Output

A JSON object containing the count of working days between the two specified dates, excluding South African public holidays and weekends (Sundays always excluded; Saturdays excluded by default unless include_saturdays is set to true).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "to",
  "from"
 ],
 "properties": {
  "to": {
   "type": "string",
   "description": "date YYYY-MM-DD, required"
  },
  "from": {
   "type": "string",
   "description": "date YYYY-MM-DD, required"
  },
  "include_saturdays": {
   "type": "boolean",
   "description": "boolean, default false: count Saturdays as working days"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zaref-working-days-calculator-90be0ba5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from zaref.dev](https://www.zero.xyz/host/zaref.dev/llms.txt)