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How many working days in year 2027?
Here is the detail of the calculation:
Because 2027 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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 2027.
 Here is the list of these 10 public holidays: 
 
 1. Solenidade da Santa Mãe de Deus : п'ятниця, 1 січень, 2027 
2. Sexta-Feira Santa : п'ятниця, 26 березень, 2027 
3. Dia da Autonomia : п'ятниця, 2 квітень, 2027 
4. Corpo de Deus : четвер, 27 травень, 2027 
5. Dia de Portugal, de Camões e das Comunidades Portuguesas : четвер, 10 червень, 2027 
6. Dia da Madeira : четвер, 1 липень, 2027 
7. Implantação da República : вівторок, 5 жовтень, 2027 
8. Todos os Santos : понеділок, 1 листопад, 2027 
9. Restauração da Independência : середа, 1 грудень, 2027 
10. Dia da Imaculada Conceição : середа, 8 грудень, 2027 
And here are the 6 public holidays falling on a weekend:
1. Páscoa : неділя, 28 березень, 2027 
2. Dia da Liberdade : неділя, 25 квітень, 2027 
3. Dia do Trabalhador : субота, 1 травень, 2027 
4. Assunção de Nossa Senhora : неділя, 15 серпень, 2027 
5. Natal : субота, 25 грудень, 2027 
6. Primeira Oitava : неділя, 26 грудень, 2027