| Country | Local name | 2026 | 2027 |
|---|---|---|---|
| Andorra | Immaculada Concepció | Tue 8 Dec | Wed 8 Dec |
| Argentina | Inmaculada Concepción de María | Tue 8 Dec | Wed 8 Dec |
| Austria | Mariä Empfängnis | Tue 8 Dec | Wed 8 Dec |
| Chile | La Inmaculada Concepción | Tue 8 Dec | Wed 8 Dec |
| Colombia | La Inmaculada Concepción | Tue 8 Dec | Wed 8 Dec |
| Equatorial Guinea | Festividad de la Inmaculada Concepción de María | Tue 8 Dec | Wed 8 Dec |
| Italy | Immacolata Concezione | Tue 8 Dec | Wed 8 Dec |
| Liechtenstein | Mariä Empfängnis | Tue 8 Dec | Wed 8 Dec |
| Monaco | Le jour de l'Immaculée Conception | Tue 8 Dec | Wed 8 Dec |
| Nicaragua | Concepción de María | Tue 8 Dec | Wed 8 Dec |
| Peru | Inmaculada Concepción | Tue 8 Dec | Wed 8 Dec |
| Philippines | Feast of the Immaculate Conception of Mary | Tue 8 Dec | Wed 8 Dec |
| Portugal | Imaculada Conceição | Tue 8 Dec | Wed 8 Dec |
| San Marino | Immacolata Concezione | Tue 8 Dec | Wed 8 Dec |
| Seychelles | The Feast of the Immaculate Conception | Tue 8 Dec | Wed 8 Dec |
| Spain | Inmaculada Concepción | Tue 8 Dec | Wed 8 Dec |
| Vatican City | Immacolata Concezione | Tue 8 Dec | Wed 8 Dec |