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How many working days in year 1965?

Here is the detail of the calculation:

Because 1965 is not a leap year, it has 365 days.

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

Now, let's remove 13 public holidays that do not fall during a weekend and we obtain 248 working days in 1965.

Here is the list of these 13 public holidays:

1. Confraternização Universal : пятница, 1 январь, 1965
2. Terça-feira de Carnaval : вторник, 2 март, 1965
3. Aniversário de Aracaju : среда, 17 март, 1965
4. Sexta Feira Santa ou Paixão de Cristo : пятница, 16 апрель, 1965
5. Tiradentes : среда, 21 апрель, 1965
6. Corpus Christi : четверг, 17 июнь, 1965
7. São João : четверг, 24 июнь, 1965
8. Autonomia política de Sergipe : четверг, 8 июль, 1965
9. Independência do Brasil : вторник, 7 сентябрь, 1965
10. Nossa Senhora Aparecida : вторник, 12 октябрь, 1965
11. Finados : вторник, 2 ноябрь, 1965
12. Proclamação da República Brasileira : понедельник, 15 ноябрь, 1965
13. Dia de Nossa Senhora da Conceição : среда, 8 декабрь, 1965

And here are the 2 public holidays falling on a weekend:

1. Dia do Trabalho : суббота, 1 май, 1965
2. Natal : суббота, 25 декабрь, 1965