Public holidays
2171, Brasil, Piauí
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 2171 | New Year's Day |
| 2 | Tuesday, 5 March 2171 | Carnival Tuesday |
| 3 | Friday, 19 April 2171 | Good Friday |
| 4 | Sunday, 21 April 2171 | Tiradentes Day |
| 5 | Wednesday, 1 May 2171 | Labour Day |
| 6 | Thursday, 20 June 2171 | Corpus Christi |
| 7 | Saturday, 7 September 2171 | Independence Day |
| 8 | Saturday, 12 October 2171 | Our Lady of Aparecida |
| 9 | Saturday, 19 October 2171 | Piauí Day |
| 10 | Saturday, 2 November 2171 | All Souls' Day |
| 11 | Friday, 15 November 2171 | Republic Proclamation Day |
| 12 | Wednesday, 20 November 2171 | Black Consciousness Day |
| 13 | Sunday, 8 December 2171 | Immaculate Conception |
| 14 | Wednesday, 25 December 2171 | Christmas Day |