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How many working days in year 1957?

Here is the detail of the calculation:

Because 1957 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1957.

Here is the list of these 11 public holidays:

1. New Year's Day : вторник, 1 январь, 1957
2. Human Rights Day : четверг, 21 март, 1957
3. Good Friday : пятница, 19 апрель, 1957
4. Family Day : понедельник, 22 апрель, 1957
5. Workers' Day : среда, 1 май, 1957
6. Youth Day observance : понедельник, 17 июнь, 1957
7. National Women's Day : пятница, 9 август, 1957
8. Heritage Day : вторник, 24 сентябрь, 1957
9. Day of Reconciliation : понедельник, 16 декабрь, 1957
10. Christmas Day : среда, 25 декабрь, 1957
11. Day of Goodwill : четверг, 26 декабрь, 1957

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

1. Freedom Day : суббота, 27 апрель, 1957
2. Youth Day : воскресенье, 16 июнь, 1957