# Colombia Working Day

> Checks a date against the Saturday-Sunday weekend baseline and exact 2026-2026 authority events.

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

## Purpose

Checks a date against the Saturday-Sunday weekend baseline and exact 2026-2026 authority events.

**Use when:** You need a deterministic Colombia Colombia nationwide statutory paid-rest public holidays for 2026 result.

**Do not use when:** This package covers Colombia's nationwide statutory paid-rest holiday layer over a Saturday-Sunday baseline. Municipal, departmental, school, bank, employer, sector and local patron-saint schedules are not inferred. Future annual calendars require refreshed official evidence.

## Example user requests

- Colombia: Colombia transferred Three Kings holiday.
- Colombia: Colombia Good Friday.
- Colombia: Ordinary Colombia working day.


## Input

| Parameter | Type | Unit | Required | Description |
| --- | --- | --- | --- | --- |
| `date` | date |  | required | Gregorian date in Colombia's pinned 2026 nationwide statutory paid-rest holiday coverage. |

## Output

| Field | Type | Unit | Description |
| --- | --- | --- | --- |
| `territory` | string |  | CO (Colombia). |
| `territory_name` | string |  | Colombia |
| `weekday` | string |  | Gregorian weekday. |
| `is_working_day` | boolean |  | Monday-Friday with no event in this pinned authority scope. |
| `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 |  | Colombia nationwide statutory paid-rest public holidays for 2026 |
| `holiday_policy` | string |  | Colombia_Ley_51_1983_plus_Ministry_of_Finance_2026_calendar |
| `substitute_day_policy` | string |  | Published_2026_Ley_51_Monday_transfers_are_included; future_or_local_transfers_are_not_inferred |
| `calendar_profile` | string |  | colombia-public-holidays |
| `dataset_version` | string |  | co-government-public-2026.1 |
| `sources` | list |  | Authority and legislation sources. |

## Formula

`is_working_day = not an official Saturday/Sunday weekend date and no exact authority event`

Apply the pinned authority event table over the declared weekday baseline; do not infer uncovered employer or regional schedules.

## Data Sources

- Colombia Ministry of Finance – 2026 holiday calendar — https://sedeelectronica.minhacienda.gov.co/SedeElectronica/info/inicio.do?formAction=btDiasInhabiles&target=print (government_official_annual_schedule)
- Colombia Function Public – Ley 51 de 1983 — https://www1.funcionpublica.gov.co/eva/gestornormativo/norma.php?i=4954 (government_official_legislation)
- Colombia Function Public – official interpretation of Ley 51 — https://www1.funcionpublica.gov.co/eva/gestornormativo/norma.php?i=204664 (government_agency_interpretation)

Data freshness: `static`. Refresh after the Colombia authority publishes a new schedule.

## API

- `GET https://tttkmbb.com/api/v1/calculate/colombia-public-working-day?date=…`
- `POST https://tttkmbb.com/api/v1/calculate/colombia-public-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/colombia-public-working-day · OpenAPI operationId `check_co_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:  `run_calculator` with `{"calculator_id": "colombia-public-working-day", "inputs": {…}}`

## Example

- Colombia transferred Three Kings holiday: inputs `{"date":"2026-01-12"}` → `{"is_working_day":false,"day_type":"substituted_public_holiday"}`
- Colombia Good Friday: inputs `{"date":"2026-04-03"}` → `{"is_working_day":false,"day_type":"national_public_holiday"}`
- Ordinary Colombia working day: inputs `{"date":"2026-09-14"}` → `{"is_working_day":true,"day_type":"regular_workday"}`

```
GET https://tttkmbb.com/api/v1/calculate/colombia-public-working-day?date=2026-01-12
```

## Limitations

This package covers Colombia's nationwide statutory paid-rest holiday layer over a Saturday-Sunday baseline. Municipal, departmental, school, bank, employer, sector and local patron-saint schedules are not inferred. Future annual calendars require refreshed official evidence. Apply the pinned authority event table over the declared weekday baseline; do not infer uncovered employer or regional schedules. All values are computed from the formula above; no measurement or live data is involved.

## FAQ

**Why is 12 January a holiday?**

Ley 51 de 1983 moves the paid rest day for 6 January to the following Monday when it does not fall on Monday.

**Does this cover every Colombian municipality and employer?**

No. This is the nationwide statutory paid-rest layer; municipal, departmental, bank, school, employer and sector calendars require separate evidence.

**Are future years included?**

No. The package pins 2026 only and must be refreshed from the next official calendar.

## Related

- [Add Colombia Working Days](https://tttkmbb.com/everyday/colombia-public-add-working-days.md) — Offset through the same authority package.