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How many working days in year 2065?
Here is the detail of the calculation:
Because 2065 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 52 sundays. It remains 261 days.
Now, let's remove 13 public holidays that do not fall during a weekend and we obtain 248 working days in 2065.
 Here is the list of these 13 public holidays: 
 
 1. Confraternização Universal : четвер, 1 січень, 2065 
2. Terça-feira de Carnaval : вівторок, 10 лютий, 2065 
3. Sexta Feira Santa ou Paixão de Cristo  : п'ятниця, 27 березень, 2065 
4. Tiradentes : вівторок, 21 квітень, 2065 
5. Dia do Trabalho : п'ятниця, 1 травень, 2065 
6. Corpus Christi : четвер, 28 травень, 2065 
7. Dia de Santa Catarina : вівторок, 11 серпень, 2065 
8. Independência do Brasil : понеділок, 7 вересень, 2065 
9. Nossa Senhora Aparecida : понеділок, 12 жовтень, 2065 
10. Finados : понеділок, 2 листопад, 2065 
11. Dia Nacional de Zumbi e da Consciência Negra : п'ятниця, 20 листопад, 2065 
12. Dia de Santa Catarina de Alexandria : середа, 25 листопад, 2065 
13. Natal : п'ятниця, 25 грудень, 2065 
And here is the public holiday falling on a weekend:
1. Proclamação da República Brasileira : неділя, 15 листопад, 2065