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Türkiye Statutory Public-Holiday Working Day

Checks a date against Türkiye's statutory public holidays and explicit 13:00 half-day events for 2026-2027.

When to use

You need Türkiye national statutory public-holiday status.

Do not use when: You need a company, school, bank, exchange, collective-agreement or local closure calendar.

is_working_day = Türkiye Saturday/Sunday baseline and no published full-day or half-day statutory holiday

Apply Law No. 2429 fixed dates and the official Diyanet religious-holiday dates; preserve half-day eves as separate structured events.

Parameter	Type	Unit	Required	Description
`date`	date		yes	Gregorian date in the pinned Türkiye 2026-2027 coverage.

Output	Type	Description
`territory`	string	TR.
`territory_name`	string	Türkiye.
`weekday`	string	Gregorian weekday.
`is_working_day`	boolean	False for the Saturday/Sunday baseline, a full statutory holiday, or a published half-day holiday; half-day details are returned separately.
`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.

Ramazan Bayramı eve: {"date":"2027-03-08"} → {"is_working_day":false,"day_type":"half_day_general_holiday","half_day_start_time":"13:00"}

GET https://tttkmbb.com/api/v1/calculate/turkey-working-day?date=2027-03-08

API: GET https://tttkmbb.com/api/v1/calculate/turkey-working-day (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/turkey-working-day · Markdown: https://tttkmbb.com/everyday/turkey-working-day.md · JSON definition: https://tttkmbb.com/everyday/turkey-working-day.json
MCP: server https://tttkmbb.com/mcp, tool check_turkey_working_day
OpenAPI operationId: check_turkey_working_day
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

The boolean result is conservative and false; use non_working_fraction and half_day_start_time for the partial-day detail.

No. Company, bank, school, exchange and collective-agreement schedules are outside scope.