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How many working days in year 1992?

Here is the detail of the calculation:

Because 1992 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 1992.

Here is the list of these 9 public holidays:

1. Solenidade da Santa Mãe de Deus : среда, 1 январь, 1992
2. Sexta-Feira Santa : пятница, 17 апрель, 1992
3. Dia do Trabalhador : пятница, 1 май, 1992
4. Dia de Portugal : среда, 10 июнь, 1992
5. Corpo de Deus : четверг, 18 июнь, 1992
6. Implantação da República : понедельник, 5 октябрь, 1992
7. Restauração da Independência : вторник, 1 декабрь, 1992
8. Dia da Imaculada Conceição : вторник, 8 декабрь, 1992
9. Natal : пятница, 25 декабрь, 1992

And here are the 4 public holidays falling on a weekend:

1. Páscoa : воскресенье, 19 апрель, 1992
2. Dia da Liberdade : суббота, 25 апрель, 1992
3. Assunção de Nossa Senhora : суббота, 15 август, 1992
4. Todos os Santos : воскресенье, 1 ноябрь, 1992