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How many working days in year 2024?
Here is the detail of the calculation:
Because 2024 is a leap year, it has 366 days.
Let's remove 52 saturdays and 52 sundays. It remains 262 days.
Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 254 working days in 2024.
 Here is the list of these 8 public holidays: 
 
 1. Confraternização Universal : Monday, 1 January, 2024 
2. Terça-feira de Carnaval : Tuesday, 13 February, 2024 
3. Sexta Feira Santa ou Paixão de Cristo  : Friday, 29 March, 2024 
4. Dia do Trabalho : Wednesday, 1 May, 2024 
5. Corpus Christi : Thursday, 30 May, 2024 
6. Proclamação da República Brasileira : Friday, 15 November, 2024 
7. Dia Nacional de Zumbi e da Consciência Negra : Wednesday, 20 November, 2024 
8. Natal : Wednesday, 25 December, 2024 
And here are the 6 public holidays falling on a weekend:
1. Tiradentes : Sunday, 21 April, 2024 
2. Adesão do Maranhão à independência do Brasil : Sunday, 28 July, 2024 
3. Independência do Brasil : Saturday, 7 September, 2024 
4. Nossa Senhora Aparecida : Saturday, 12 October, 2024 
5. Finados : Saturday, 2 November, 2024 
6. Dia de Nossa Senhora da Conceição : Sunday, 8 December, 2024