Определить период

...

How many working days in year 1928?

Here is the detail of the calculation:

Because 1928 is a leap year, it has 366 days.

Let's remove 52 saturdays and 53 sundays. It remains 261 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1928.

Here is the list of these 8 public holidays:

1. Sexta-Feira Santa : пятница, 6 апрель, 1928
2. Dia da Liberdade : среда, 25 апрель, 1928
3. Dia do Trabalhador : вторник, 1 май, 1928
4. Corpo de Deus : четверг, 7 июнь, 1928
5. Assunção de Nossa Senhora : среда, 15 август, 1928
6. Implantação da República : пятница, 5 октябрь, 1928
7. Todos os Santos : четверг, 1 ноябрь, 1928
8. Natal : вторник, 25 декабрь, 1928

And here are the 5 public holidays falling on a weekend:

1. Solenidade da Santa Mãe de Deus : воскресенье, 1 январь, 1928
2. Páscoa : воскресенье, 8 апрель, 1928
3. Dia de Portugal : воскресенье, 10 июнь, 1928
4. Restauração da Independência : суббота, 1 декабрь, 1928
5. Dia da Imaculada Conceição : суббота, 8 декабрь, 1928