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How many working days in year 1996?

Here is the detail of the calculation:

Because 1996 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 1996.

Here is the list of these 9 public holidays:

1. Confraternização Universal : понедельник, 1 январь, 1996
2. Aniversário de São Paulo : четверг, 25 январь, 1996
3. Terça-feira de Carnaval : вторник, 20 февраль, 1996
4. Sexta Feira Santa ou Paixão de Cristo : пятница, 5 апрель, 1996
5. Dia do Trabalho : среда, 1 май, 1996
6. Corpus Christi : четверг, 6 июнь, 1996
7. Revolução constitucionalista : вторник, 9 июль, 1996
8. Proclamação da República Brasileira : пятница, 15 ноябрь, 1996
9. Natal : среда, 25 декабрь, 1996

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

1. Tiradentes : воскресенье, 21 апрель, 1996
2. Independência do Brasil : суббота, 7 сентябрь, 1996
3. Nossa Senhora Aparecida : суббота, 12 октябрь, 1996
4. Finados : суббота, 2 ноябрь, 1996