# Canada Federal General-Holiday Working Day

> Checks a date against the 10 Canada Labour Code general holidays and the Canada Saturday/Sunday baseline; substitute days are not inferred.

- Calculator id: `canada-federal-working-day` · Category: Everyday Life (`everyday`) · Tool name: `check_canada_federal_working_day`
- Canonical page: https://tttkmbb.com/everyday/canada-federal-working-day · This document: https://tttkmbb.com/everyday/canada-federal-working-day.md · JSON definition: https://tttkmbb.com/everyday/canada-federal-working-day.json

## Purpose

Checks a date against the 10 Canada Labour Code general holidays and the Canada Saturday/Sunday baseline; substitute days are not inferred.

**Use when:** You need a federally regulated-employer general-holiday result for 2026-2027.

**Do not use when:** You need a province/territory, municipal, private-employer, exchange or schedule-specific substitute-day calendar.

## Example user requests

- Is 2026-09-30 a Canada federal working day?


## Input

| Parameter | Type | Unit | Required | Description |
| --- | --- | --- | --- | --- |
| `date` | date |  | required | Gregorian date in the pinned Canada 2026-2027 coverage. |

## Output

| Field | Type | Unit | Description |
| --- | --- | --- | --- |
| `territory` | string |  | CA. |
| `territory_name` | string |  | Canada. |
| `weekday` | string |  | Gregorian weekday. |
| `is_working_day` | boolean |  | True when the Canada Saturday/Sunday baseline has no listed federal general holiday. |
| `day_type` | string |  | Regular weekday, regular weekend or Canada federal general holiday. |
| `holiday_names` | string_list |  | Canada Labour Code general holidays applying on the date. |
| `holiday_observed` | boolean |  | False because substitute dates depend on schedule and agreement and are not inferred. |
| `holiday_actual_dates` | string_list |  | Actual general-holiday dates. |
| `weekend_days` | string_list |  | CLDR Saturday/Sunday baseline. |
| `rest_day_policy` | string |  | Scheduled-workday and employer substitution rules are not inferred. |
| `substitute_day_policy` | string |  | Canada.ca rule summary with schedule-dependent boundary. |
| `calendar_scope` | string |  | Federally regulated employers only. |
| `calendar_profile` | string |  | canada-federal-general-holidays. |
| `dataset_version` | string |  | Pinned Canada.ca evidence package. |
| `sources` | list |  | Official Canada.ca and Canada Labour Code sources. |

## Formula

`is_working_day = Canada weekday baseline and no Canada Labour Code general holiday`

Apply the pinned Canada.ca general-holiday dates on top of the CLDR CA weekend baseline; preserve substitution uncertainty.

## Data Sources

- Government of Canada annual vacations and general holidays — https://www.canada.ca/en/services/jobs/workplace/federal-labour-standards/vacations-holidays.html (government, published 2025-12-12)
- Canada Labour Code Part III, Division V — https://laws-lois.justice.gc.ca/eng/acts/l-2/page-31.html (legislation)

Data freshness: `static`. Pinned Canada.ca 2026-2027 package.

## API

- `GET https://tttkmbb.com/api/v1/calculate/canada-federal-working-day?date=…`
- `POST https://tttkmbb.com/api/v1/calculate/canada-federal-working-day` 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/canada-federal-working-day · OpenAPI operationId `check_canada_federal_working_day` 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: `check_canada_federal_working_day` (dedicated) or `run_calculator` with `{"calculator_id": "canada-federal-working-day", "inputs": {…}}`

## Example

- Truth and Reconciliation Day: inputs `{"date":"2026-09-30"}` → `{"is_working_day":false}`

```
GET https://tttkmbb.com/api/v1/calculate/canada-federal-working-day?date=2026-09-30
```

## Limitations

You need a province/territory, municipal, private-employer, exchange or schedule-specific substitute-day calendar. Apply the pinned Canada.ca general-holiday dates on top of the CLDR CA weekend baseline; preserve substitution uncertainty. All values are computed from the formula above; no measurement or live data is involved.

## FAQ

**Does this choose a Canadian substitute day?**

No. Canada.ca makes some substitute days depend on the employee's scheduled workday and employer or collective agreement.

## Related

- [Add Canada Federal Working Days](https://tttkmbb.com/everyday/canada-federal-add-working-days.md) — Offset using the same Canada federal general-holiday dates.