Public holidays
1647, Brasil, Piauí
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1647 | Confraternização Universal |
| 2 | Tuesday, 5 March 1647 | Terça-feira de Carnaval |
| 3 | Friday, 19 April 1647 | Sexta Feira Santa ou Paixão de Cristo |
| 4 | Sunday, 21 April 1647 | Tiradentes |
| 5 | Wednesday, 1 May 1647 | Dia do Trabalho |
| 6 | Thursday, 20 June 1647 | Corpus Christi |
| 7 | Saturday, 7 September 1647 | Independência do Brasil |
| 8 | Saturday, 12 October 1647 | Nossa Senhora Aparecida |
| 9 | Saturday, 19 October 1647 | Dia do Piauí |
| 10 | Saturday, 2 November 1647 | Finados |
| 11 | Friday, 15 November 1647 | Proclamação da República Brasileira |
| 12 | Wednesday, 25 December 1647 | Natal |