How many working days in year 1987?
Here is the detail of the calculation:
Because 1987 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 1987.
Here is the list of these 10 public holidays:
1. Solenidade da Santa Mãe de Deus : Thursday, 1 January, 1987
2. Sexta-Feira Santa : Friday, 17 April, 1987
3. Dia do Trabalhador : Friday, 1 May, 1987
4. Dia de Portugal : Wednesday, 10 June, 1987
5. Corpo de Deus : Thursday, 18 June, 1987
6. Dia da Madeira : Wednesday, 1 July, 1987
7. Implantação da República : Monday, 5 October, 1987
8. Restauração da Independência : Tuesday, 1 December, 1987
9. Dia da Imaculada Conceição : Tuesday, 8 December, 1987
10. Natal : Friday, 25 December, 1987
And here are the 5 public holidays falling on a weekend:
1. Páscoa : Sunday, 19 April, 1987
2. Dia da Liberdade : Saturday, 25 April, 1987
3. Assunção de Nossa Senhora : Saturday, 15 August, 1987
4. Todos os Santos : Sunday, 1 November, 1987
5. Primeira Oitava : Saturday, 26 December, 1987