# Add France Working Days

> Adds or subtracts France authority-scope working days in exact coverage.

- Calculator id: `france-add-working-days` · Category: Everyday Life (`everyday`) · Tool name: `add_fr_working_days`
- Canonical page: https://tttkmbb.com/everyday/france-add-working-days · This document: https://tttkmbb.com/everyday/france-add-working-days.md · JSON definition: https://tttkmbb.com/everyday/france-add-working-days.json

## Purpose

Adds or subtracts France authority-scope working days in exact coverage.

**Use when:** You need a deterministic France working-day offset.

**Do not use when:** Alsace-Moselle, overseas territories, employer, sector, school, bank, exchange and regional calendars are not inferred.

## Example user requests

- Add or subtract France working days around Bastille Day.


## Input

| Parameter | Type | Unit | Required | Description |
| --- | --- | --- | --- | --- |
| `start_date` | date |  | required | Gregorian start date in 2026-2027. |
| `working_days` | integer |  | required | Signed offset; start date excluded for non-zero offsets. (min -1000, max 1000) |

## Output

| Field | Type | Unit | Description |
| --- | --- | --- | --- |
| `start_date` | date |  | Input date. |
| `result_date` | date |  | Date reached. |
| `working_days_added` | integer |  | Signed requested offset. |
| `calendar_days_elapsed` | integer |  | Signed Gregorian difference. |
| `public_holidays_skipped` | list |  | Exact events crossed. |
| `territory` | string |  | FR (France). |
| `territory_name` | string |  | France |
| `day_type` | string |  | Deterministic classification: official_weekend, regular_workday, or the first published authority event kind. |
| `holiday_names` | string_list |  | Events applying on the date. |
| `holiday_kinds` | string_list |  | Authority event classifications. |
| `holiday_details` | list |  | Structured event details, including partial-day notes where published. |
| `calendar_scope` | string |  | France national legal public holidays |
| `holiday_policy` | string |  | Article L3133-1 national legal list; May 1 has special mandatory-rest protection while other holidays can be worked under applicable collective/employer rules |
| `substitute_day_policy` | string |  | No national substitute-day closure is inferred; Alsace-Moselle and local/sector rules require separate authority evidence |
| `calendar_profile` | string |  | france-public-holidays |
| `dataset_version` | string |  | fr-legifrance-public-holidays-2026-09-29.1 |
| `sources` | list |  | Authority and legislation sources. |

## Formula

`move one day at a time; decrement only on status.is_working_day=true`

Skip Saturday/Sunday and exact pinned authority events; do not add unverified substitute days.

## Data Sources

- Légifrance Code du travail Article L3133-1 — https://www.legifrance.gouv.fr/codes/id/LEGIARTI000006902613/2026-01-03 (government_legislation)
- Légifrance Code du travail public-holiday section — https://www.legifrance.gouv.fr/codes/id/LEGISCTA000006178007 (government_legislation)

Data freshness: `static`. Pinned fr-legifrance-public-holidays-2026-09-29.1 package.

## API

- `GET https://tttkmbb.com/api/v1/calculate/france-add-working-days?start_date=…&working_days=…`
- `POST https://tttkmbb.com/api/v1/calculate/france-add-working-days` with JSON body `{"inputs": {…}}`
- Response: unified envelope (`success`, `request`, `result.values`, `result.units`, `sources`, `freshness`, `timestamp`, `next_actions`, `links`); see https://tttkmbb.com/docs/response-format.md
- Schema: https://tttkmbb.com/api/v1/calculators/france-add-working-days · OpenAPI operationId `add_fr_working_days` in https://tttkmbb.com/openapi.json
- Authentication: none. Rate limit: fair use, see https://tttkmbb.com/docs/rate-limits.md.

## MCP

- Server: `https://tttkmbb.com/mcp` (Streamable HTTP, JSON-RPC 2.0, no auth)
- Tool:  `run_calculator` with `{"calculator_id": "france-add-working-days", "inputs": {…}}`

## Example

- Zero offset is identity: inputs `{"start_date":"2026-01-01","working_days":0}` → `{"result_date":"2026-01-01","working_days_added":0}`

```
GET https://tttkmbb.com/api/v1/calculate/france-add-working-days?start_date=2026-01-01&working_days=0
```

## Limitations

Alsace-Moselle, overseas territories, employer, sector, school, bank, exchange and regional calendars are not inferred. Skip Saturday/Sunday and exact pinned authority events; do not add unverified substitute days. All values are computed from the formula above; no measurement or live data is involved.

## FAQ

**Does every French public holiday guarantee a day off?**

No. This package records the national legal list; closure and work rules can depend on collective agreements and employer/sector rules. May 1 has special statutory protection.

## Related

- [France Working Day](https://tttkmbb.com/everyday/france-working-day.md) — Inspect a date and source evidence.