Public holidays
1646, Portugal, Porto
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1646 | Ano Novo |
| 2 | Friday, 30 March 1646 | Sexta-Feira Santa |
| 3 | Wednesday, 25 April 1646 | Dia da Liberdade |
| 4 | Tuesday, 1 May 1646 | Dia do Trabalhador |
| 5 | Thursday, 31 May 1646 | Corpo de Deus |
| 6 | Sunday, 10 June 1646 | Dia de Portugal |
| 7 | Sunday, 24 June 1646 | Dia de São João |
| 8 | Wednesday, 15 August 1646 | Assunção |
| 9 | Friday, 5 October 1646 | Implantação República |
| 10 | Thursday, 1 November 1646 | Todos os Santos |
| 11 | Saturday, 1 December 1646 | Independência |
| 12 | Saturday, 8 December 1646 | Imaculada Conceição |
| 13 | Tuesday, 25 December 1646 | Natal |