Define a period

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How many working days in year 2000?

Here is the detail of the calculation:

Because 2000 is a leap year, it has 366 days.

Let's remove 53 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 2000.

Here is the list of these 11 public holidays:

1. Sexta-Feira Santa : Friday, 21 April, 2000
2. Dia da Liberdade : Tuesday, 25 April, 2000
3. Dia do Trabalhador : Monday, 1 May, 2000
4. Corpo de Deus : Thursday, 22 June, 2000
5. Dia de São Pedro : Thursday, 29 June, 2000
6. Assunção de Nossa Senhora : Tuesday, 15 August, 2000
7. Implantação da República : Thursday, 5 October, 2000
8. Todos os Santos : Wednesday, 1 November, 2000
9. Restauração da Independência : Friday, 1 December, 2000
10. Dia da Imaculada Conceição : Friday, 8 December, 2000
11. Natal : Monday, 25 December, 2000

And here are the 3 public holidays falling on a weekend:

1. Solenidade da Santa Mãe de Deus : Saturday, 1 January, 2000
2. Páscoa : Sunday, 23 April, 2000
3. Dia de Portugal : Saturday, 10 June, 2000