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How many working days in year 2067?
Here is the detail of the calculation:
Because 2067 is not a leap year, it has 365 days.
Let's remove 53 saturdays and 52 sundays. It remains 260 days.
Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 249 working days in 2067.
 Here is the list of these 11 public holidays: 
 
 1. Sexta-Feira Santa : Friday, 1 April, 2067 
2. Dia da Liberdade : Monday, 25 April, 2067 
3. Corpo de Deus : Thursday, 2 June, 2067 
4. Dia de Portugal, de Camões e das Comunidades Portuguesas : Friday, 10 June, 2067 
5. Dia da Madeira : Friday, 1 July, 2067 
6. Assunção de Nossa Senhora : Monday, 15 August, 2067 
7. Implantação da República : Wednesday, 5 October, 2067 
8. Todos os Santos : Tuesday, 1 November, 2067 
9. Restauração da Independência : Thursday, 1 December, 2067 
10. Dia da Imaculada Conceição : Thursday, 8 December, 2067 
11. Primeira Oitava : Monday, 26 December, 2067 
And here are the 5 public holidays falling on a weekend:
1. Solenidade da Santa Mãe de Deus : Saturday, 1 January, 2067 
2. Dia da Autonomia : Saturday, 2 April, 2067 
3. Páscoa : Sunday, 3 April, 2067 
4. Dia do Trabalhador : Sunday, 1 May, 2067 
5. Natal : Sunday, 25 December, 2067