# Count Türkiye Statutory Working Days

> Counts Türkiye statutory-baseline working and non-working dates over a pinned 2026-2027 range.

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

## Purpose

Counts Türkiye statutory-baseline working and non-working dates over a pinned 2026-2027 range.

**Use when:** You need an auditable Türkiye statutory working-day count.

**Do not use when:** You need a private employer, school, bank, exchange, local or collective-agreement calendar.

## Example user requests

- Count Türkiye working days from 2027-03-01 to 2027-03-31.


## Input

| Parameter | Type | Unit | Required | Description |
| --- | --- | --- | --- | --- |
| `start_date` | date |  | required | First date in 2026-2027. |
| `end_date` | date |  | required | Last date in 2026-2027. |
| `include_start_date` | boolean |  | optional, default true | Whether start_date participates. |
| `include_end_date` | boolean |  | optional, default true | Whether end_date participates. |

## Output

| Field | Type | Unit | Description |
| --- | --- | --- | --- |
| `normalized_start_date` | date |  | Earlier endpoint. |
| `normalized_end_date` | date |  | Later endpoint. |
| `working_days` | integer |  | Türkiye statutory-baseline working dates. |
| `non_working_days` | integer |  | Weekend, full-day and half-day dates. |
| `general_holidays_counted` | list |  | Official events in the range, including half-day fraction. |
| `territory` | string |  | TR. |
| `territory_name` | string |  | Türkiye. |
| `day_type` | string |  | Regular weekday, regular weekend, general holiday or half-day general holiday. |
| `holiday_names` | string_list |  | Turkish statutory holiday events applying on the date. |
| `holiday_kinds` | string_list |  | full_day or half_day. |
| `half_day_start_time` | string |  | 13:00 when an official half-day applies; empty string otherwise. |
| `non_working_fraction` | number |  | 1 for a full-day holiday, 0.5 for a published half-day, and 0 for a regular day. |
| `weekend_days` | string_list |  | CLDR Saturday/Sunday baseline. |
| `calendar_scope` | string |  | Türkiye statutory national public holidays only. |
| `half_day_policy` | string |  | Official 13:00 half-day semantics. |
| `rest_day_policy` | string |  | Private and sector-specific closures are not inferred. |
| `calendar_profile` | string |  | tr-statutory-public-holidays. |
| `dataset_version` | string |  | Pinned Turkish official evidence package. |
| `sources` | list |  | Official Diyanet and statutory sources. |

## Formula

`for each included date: working_days += Turkey status.is_working_day`

Normalize endpoints, apply endpoint flags and count the pinned Türkiye package over the CLDR weekend baseline.

## Data Sources

- T.C. Diyanet İşleri Başkanlığı 2026 dini günler listesi — https://vakithesaplama.diyanet.gov.tr/icerik.php?icerik=153 (government, published 2026)
- T.C. Diyanet İşleri Başkanlığı 2027 dini günler listesi — https://vakithesaplama.diyanet.gov.tr/icerik.php?icerik=154 (government, published 2026)
- Ulusal Bayram ve Genel Tatiller Hakkında Kanun No. 2429 — https://vakithesaplama.diyanet.gov.tr/2429_kanun.php (legislation)
- TÜİK calendar-effects holiday table — https://www.tuik.gov.tr/indir/mt/takvim_etkileri_yontem_dokumani_ciro.pdf (government_reference, published 2022)

Data freshness: `static`. Refresh only after reviewing the current Law No. 2429 text and official Diyanet holiday tables.

## API

- `GET https://tttkmbb.com/api/v1/calculate/turkey-working-days-between?start_date=…&end_date=…`
- `POST https://tttkmbb.com/api/v1/calculate/turkey-working-days-between` 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/turkey-working-days-between · OpenAPI operationId `count_turkey_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: `count_turkey_working_days` (dedicated) or `run_calculator` with `{"calculator_id": "turkey-working-days-between", "inputs": {…}}`

## Example

- March 2027: inputs `{"start_date":"2027-03-01","end_date":"2027-03-31","include_start_date":true,"include_end_date":true}` → `{"working_days":19}`

```
GET https://tttkmbb.com/api/v1/calculate/turkey-working-days-between?start_date=2027-03-01&end_date=2027-03-31&include_start_date=true&include_end_date=true
```

## Limitations

You need a private employer, school, bank, exchange, local or collective-agreement calendar. Normalize endpoints, apply endpoint flags and count the pinned Türkiye package over the CLDR weekend baseline. All values are computed from the formula above; no measurement or live data is involved.

## FAQ

**Does this count half-days as working days?**

No; the range count is conservative and returns the half-day event and fraction separately.

## Related

- [Türkiye Statutory Public-Holiday Working Day](https://tttkmbb.com/everyday/turkey-working-day.md) — Inspect a date and its official holiday classification.