Определить период

...

How many working days in year 2016?

Here is the detail of the calculation:

Because 2016 is a leap year, it has 366 days.

Let's remove 53 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 2016.

Here is the list of these 10 public holidays:

1. Solenidade da Santa Mãe de Deus : пятница, 1 январь, 2016
2. Sexta-Feira Santa : пятница, 25 март, 2016
3. Dia da Liberdade : понедельник, 25 апрель, 2016
4. Corpo de Deus : четверг, 26 май, 2016
5. Dia de Portugal : пятница, 10 июнь, 2016
6. Assunção de Nossa Senhora : понедельник, 15 август, 2016
7. Implantação da República : среда, 5 октябрь, 2016
8. Todos os Santos : вторник, 1 ноябрь, 2016
9. Restauração da Independência : четверг, 1 декабрь, 2016
10. Dia da Imaculada Conceição : четверг, 8 декабрь, 2016

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

1. Páscoa : воскресенье, 27 март, 2016
2. Dia do Trabalhador : воскресенье, 1 май, 2016
3. Natal : воскресенье, 25 декабрь, 2016