definitions/mc.yaml at master · holidays/definitions · GitHub

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# Monaco holiday definitions for the Ruby Holiday gem.
#
# Sources:
# - https://monservicepublic.gouv.mc/thematiques/emploi/activite-salariee/conges-et-don-de-conges/jours-feries
#
# Note:
# When New Year's Day, May 1st, Assumption, All Saints' Day, Prince's Day, or Christmas
# fall on a Sunday, the following Monday is a holiday.
---
region_names:
  mc: "Monaco"
months:
  0:
  - name: Lundi de Pâques
    regions: [mc]
    function: easter(year)
    function_modifier: 1
  - name: Ascension
    regions: [mc]
    function: easter(year)
    function_modifier: 39
  - name: Lundi de Pentecôte
    regions: [mc]
    function: easter(year)
    function_modifier: 50
  - name: Fête Dieu
    regions: [mc]
    function: easter(year)
    function_modifier: 60
  1:
  - name: Jour de l'an
    regions: [mc]
    mday: 1
  - name: Sainte Dévote
    regions: [mc]
    mday: 27
  5:
  - name: Fête du Travail
    regions: [mc]
    mday: 1
  8:
  - name: Assomption
    regions: [mc]
    mday: 15
  11:
  - name: Toussaint
    regions: [mc]
    mday: 1
    observed: to_monday_if_sunday(date)
  - name: Fête du Prince
    regions: [mc]
    mday: 19
  12:
  - name: Immaculée Conception
    regions: [mc]
    mday: 8
    observed: to_monday_if_sunday(date)
  - name: Noël
    regions: [mc]
    mday: 25

tests:
  - given:
      date: '2026-01-01'
      regions: ["mc"]
    expect:
      name: "Jour de l'an"
  - given:
      date: '2026-01-27'
      regions: ["mc"]
    expect:
      name: "Sainte Dévote"
  - given:
      date: '2026-04-06'
      regions: ["mc"]
    expect:
      name: "Lundi de Pâques"
  - given:
      date: '2026-05-01'
      regions: ["mc"]
    expect:
      name: "Fête du Travail"
  - given:
      date: '2026-05-14'
      regions: ["mc"]
    expect:
      name: "Ascension"
  - given:
      date: '2026-05-25'
      regions: ["mc"]
    expect:
      name: "Lundi de Pentecôte"
  - given:
      date: '2026-06-04'
      regions: ["mc"]
    expect:
      name: "Fête Dieu"
  - given:
      date: '2026-08-15'
      regions: ["mc"]
    expect:
      name: "Assomption"
  - given:
      date: '2026-11-01'
      regions: ["mc"]
    expect:
      name: "Toussaint"
  - given:
      date: '2026-11-19'
      regions: ["mc"]
    expect:
      name: "Fête du Prince"
  - given:
      date: '2026-12-08'
      regions: ["mc"]
    expect:
      name: "Immaculée Conception"
  - given:
      date: '2026-12-25'
      regions: ["mc"]
    expect:
      name: "Noël"
  # Testing observed (Sunday -> Monday logic)
  # In 2024, Nov 1st was Friday. Nov 19th was Tuesday. Dec 8 was Sunday.
  - given:
      date: '2024-12-08'
      regions: ["mc"]
    expect:
      name: "Immaculée Conception"
  - given:
      date: '2024-12-09'
      regions: ["mc"]
      options: ["observed"]
    expect:
      name: "Immaculée Conception"
  # 2025: Nov 1 is Saturday.
  # 2026: Nov 1 is Sunday.
  - given:
      date: '2026-11-01'
      regions: ["mc"]
    expect:
      name: "Toussaint"
  - given:
      date: '2026-11-02'
      regions: ["mc"]
      options: ["observed"]
    expect:
      name: "Toussaint"