Public holidays
1905, Brasil, Piauí
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1905 | Confraternização Universal |
| 2 | Tuesday, 7 March 1905 | Terça-feira de Carnaval |
| 3 | Friday, 21 April 1905 | Sexta Feira Santa ou Paixão de Cristo |
| 4 | Monday, 1 May 1905 | Dia do Trabalho |
| 5 | Thursday, 22 June 1905 | Corpus Christi |
| 6 | Thursday, 7 September 1905 | Independência do Brasil |
| 7 | Thursday, 12 October 1905 | Nossa Senhora Aparecida |
| 8 | Thursday, 19 October 1905 | Dia do Piauí |
| 9 | Thursday, 2 November 1905 | Finados |
| 10 | Wednesday, 15 November 1905 | Proclamação da República Brasileira |
| 11 | Friday, 8 December 1905 | Dia de Nossa Senhora da Conceição |
| 12 | Monday, 25 December 1905 | Natal |