Holiday Data Sources & Review Dates

DeadlineDays holiday-aware calculators load country and year holiday data in the browser from the Nager.Date Public Holiday API. This page lists the reference official source, last review date, coverage, and known limitations for each supported country.

• Nager.Date Public Holiday API

Data API: Nager.Date Public Holiday API. Official reference source: U.S. Office of Personnel Management Federal Holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Federal holidays differ from state, local, employer, and bank holidays. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• U.S. Office of Personnel Management Federal Holidays

Data API: Nager.Date Public Holiday API. Official reference source: GOV.UK Bank holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Bank holidays differ between England and Wales, Scotland, and Northern Ireland. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• GOV.UK Bank holidays

Data API: Nager.Date Public Holiday API. Official reference source: Canada Revenue Agency Public holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Federal, provincial, and Quebec-specific holidays can differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Canada Revenue Agency Public holidays

Data API: Nager.Date Public Holiday API. Official reference source: Fair Work Ombudsman Public holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Public holidays can differ by state or territory. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Fair Work Ombudsman Public holidays

Data API: Nager.Date Public Holiday API. Official reference source: Department of Personnel and Training holiday list. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: National, state, bank, and organization holidays can differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Department of Personnel and Training holiday list

Data API: Nager.Date Public Holiday API. Official reference source: Singapore Ministry of Manpower Public holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Gazetted public holidays are published by the Ministry of Manpower. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Singapore Ministry of Manpower Public holidays

Data API: Nager.Date Public Holiday API. Official reference source: Official Gazette nationwide holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Regular, special, and local holidays may differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Official Gazette nationwide holidays

Data API: Nager.Date Public Holiday API. Official reference source: Cabinet Office Japan National Holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: National holidays and substitute holidays are published by the Cabinet Office. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Cabinet Office Japan National Holidays

Data API: Nager.Date Public Holiday API. Official reference source: Korea Customs Service Korean National Holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Substitute and temporary holidays should be verified with official Korean sources. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Korea Customs Service Korean National Holidays

Data API: Nager.Date Public Holiday API. Official reference source: Gesetze im Internet legal texts. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Public holidays in Germany can differ by federal state. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Gesetze im Internet legal texts

Data API: Nager.Date Public Holiday API. Official reference source: Service-Public.fr jours feries. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: Some French holidays and local observances can differ by region or local rule. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Service-Public.fr jours feries

Data API: Nager.Date Public Holiday API. Official reference source: Punto de Acceso General - Calendarios laborales. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: National, autonomous community, and local holidays can differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Punto de Acceso General - Calendarios laborales

Data API: Nager.Date Public Holiday API. Official reference source: Camara de Diputados Federal Labor Law. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: National and local observances can differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Camara de Diputados Federal Labor Law

Data API: Nager.Date Public Holiday API. Official reference source: Governo Federal feriados e pontos facultativos. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: State and municipal holidays can differ. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Governo Federal feriados e pontos facultativos

Data API: Nager.Date Public Holiday API. Official reference source: Kemenko PMK 2026 national holidays. Last reviewed: 2026-06-13. Coverage: National public holidays are used as the default, and regional or special holiday types may be shown when the data source provides them. Known limitations: National leave and joint leave rules may change by government announcement. Company closures, bank holidays, school holidays, temporary closures, and contract-specific non-working days can differ from calculator results.

• Kemenko PMK 2026 national holidays