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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 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2067.
 Here is the list of these 9 public holidays: 
 
 1. Aniversário de São Paulo : вівторок, 25 січень, 2067 
2. Terça-feira de Carnaval : вівторок, 15 лютий, 2067 
3. Sexta Feira Santa ou Paixão de Cristo  : п'ятниця, 1 квітень, 2067 
4. Tiradentes : четвер, 21 квітень, 2067 
5. Corpus Christi : четвер, 2 червень, 2067 
6. Independência do Brasil : середа, 7 вересень, 2067 
7. Nossa Senhora Aparecida : середа, 12 жовтень, 2067 
8. Finados : середа, 2 листопад, 2067 
9. Proclamação da República Brasileira : вівторок, 15 листопад, 2067 
And here are the 5 public holidays falling on a weekend:
1. Confraternização Universal : субота, 1 січень, 2067 
2. Dia do Trabalho : неділя, 1 травень, 2067 
3. Revolução constitucionalista : субота, 9 липень, 2067 
4. Dia Nacional de Zumbi e da Consciência Negra : неділя, 20 листопад, 2067 
5. Natal : неділя, 25 грудень, 2067