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Nigeria Working Day

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

When to use

You need a deterministic Nigeria Nigeria 2026 nationwide federal public-holiday calendar over a Saturday-Sunday weekend result.

Do not use when: This is the nationwide federal public-holiday layer, not a universal private-employer, state, local-government, school, banking, market, diplomatic-mission or sector calendar. Ministry of Interior announcements take precedence over conflicting secondary or diplomatic snapshots for federal dates. Eid dates are lunar and can be amended by later official notice. The Public Holidays Act permits special or substituted dates and explicitly does not create an automatic extra day for a holiday falling on Saturday or Sunday; no replacement day is invented here.

Example user requests

Nigeria: Federal Democracy Day.
Nigeria: Ordinary federal working day.

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.

Inputs

Parameter	Type	Unit	Required	Description
`date`	date		yes	Gregorian date in Nigeria's pinned 2026 federal public-holiday coverage over a Saturday-Sunday weekend.

Outputs

Output	Type	Description
`territory`	string	NG (Nigeria).
`territory_name`	string	Nigeria
`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	Nigeria 2026 nationwide federal public-holiday calendar over a Saturday-Sunday weekend
`holiday_policy`	string	Nigeria_Public_Holidays_Act_and_2026_Federal_Government_Announcements
`substitute_day_policy`	string	published_official_dates_only; no automatic weekend_lieu_day; later federal public notice overrides
`calendar_profile`	string	nigeria-public-holidays
`dataset_version`	string	ng-federal-public-2026.1
`sources`	list	Authority and legislation sources.

Example

Federal Democracy Day: {"date":"2026-06-12"} → {"is_working_day":false,"day_type":"federal_public_holiday"}

Ordinary federal working day: {"date":"2026-06-16"} → {"is_working_day":true,"day_type":"regular_workday"}

GET https://tttkmbb.com/api/v1/calculate/nigeria-public-working-day?date=2026-06-12

Machine access

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

Sources

Nigeria Ministry of Interior – Public Holiday announcements (government_official_public_holiday_index)
Nigeria Ministry of Interior – Eid-ul-Fitr 2026 announcement (government_official_news_release)
Nigeria Ministry of Interior – Easter 2026 announcement (government_official_news_release)
Nigeria Ministry of Interior – Workers' Day 2026 announcement (government_official_news_release)
Nigeria Federal Ministry of Information – Democracy Day 2026 announcement (government_official_news_release)
Nigeria High Commission in Ottawa – 2026 public holidays (official_diplomatic_calendar_cross_check)
Nigeria Public Holidays Act (legal_reference)
Punch Nigeria – public-holiday reporting (reputable_news_cross_check)

FAQ

Does this answer every Nigerian employer's calendar?

No. It is the nationwide federal public-holiday layer. State, local, school, bank, market, diplomatic, sector and private-employer calendars need their own authority and are not inferred.

Why does the package use March 19–20 for Eid-ul-Fitr?

Those are the dates in the Nigeria Ministry of Interior's federal announcement. A diplomatic snapshot lists different dates, so the federal announcement is retained as the authoritative scope and the conflict is disclosed.

Related calculators

Add Nigeria Working Days — Offset through the same authority package.