Public holidays
1664, Brasil, Rio Grande do Sul
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1664 | New Year's Day |
| 2 | Tuesday, 26 February 1664 | Carnival Tuesday |
| 3 | Friday, 11 April 1664 | Good Friday |
| 4 | Monday, 21 April 1664 | Tiradentes Day |
| 5 | Thursday, 1 May 1664 | Labour Day |
| 6 | Thursday, 12 June 1664 | Corpus Christi |
| 7 | Sunday, 7 September 1664 | Independence Day |
| 8 | Saturday, 20 September 1664 | Proclamation of the Rio-Grandense Republic |
| 9 | Sunday, 12 October 1664 | Our Lady of Aparecida |
| 10 | Sunday, 2 November 1664 | All Souls' Day |
| 11 | Saturday, 15 November 1664 | Republic Proclamation Day |
| 12 | Thursday, 25 December 1664 | Christmas Day |