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How many working days in year 1943?

Here is the detail of the calculation:

Because 1943 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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1943.

Here is the list of these 10 public holidays:

1. Confraternização Universal : пятница, 1 январь, 1943
2. Terça-feira de Carnaval : вторник, 9 март, 1943
3. Tiradentes : среда, 21 апрель, 1943
4. Sexta Feira Santa ou Paixão de Cristo : пятница, 23 апрель, 1943
5. Corpus Christi : четверг, 24 июнь, 1943
6. Independência da Bahia : пятница, 2 июль, 1943
7. Independência do Brasil : вторник, 7 сентябрь, 1943
8. Nossa Senhora Aparecida : вторник, 12 октябрь, 1943
9. Finados : вторник, 2 ноябрь, 1943
10. Proclamação da República Brasileira : понедельник, 15 ноябрь, 1943

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

1. Dia do Trabalho : суббота, 1 май, 1943
2. Natal : суббота, 25 декабрь, 1943