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How many working days in year 2023?
Here is the detail of the calculation:
Because 2023 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 53 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 2023.
 Here is the list of these 11 public holidays: 
 
 1. Terça-feira de Carnaval : вівторок, 21 лютий, 2023 
2. Sexta Feira Santa ou Paixão de Cristo  : п'ятниця, 7 квітень, 2023 
3. Tiradentes : п'ятниця, 21 квітень, 2023 
4. Dia do Trabalho : понеділок, 1 травень, 2023 
5. Corpus Christi : четвер, 8 червень, 2023 
6. Independência do Brasil : четвер, 7 вересень, 2023 
7. Nossa Senhora Aparecida : четвер, 12 жовтень, 2023 
8. Finados : четвер, 2 листопад, 2023 
9. Proclamação da República Brasileira : середа, 15 листопад, 2023 
10. Dia Nacional de Zumbi e da Consciência Negra : понеділок, 20 листопад, 2023 
11. Natal : понеділок, 25 грудень, 2023 
And here is the public holiday falling on a weekend:
1. Confraternização Universal : неділя, 1 січень, 2023