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How many working days in year 1971?

Here is the detail of the calculation:

Because 1971 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 1971.

Here is the list of these 10 public holidays:

1. New Year's Day : пятница, 1 январь, 1971
2. Human Rights Day observance : понедельник, 22 март, 1971
3. Good Friday : пятница, 9 апрель, 1971
4. Family Day : понедельник, 12 апрель, 1971
5. Freedom Day : вторник, 27 апрель, 1971
6. Youth Day : среда, 16 июнь, 1971
7. National Women's Day : понедельник, 9 август, 1971
8. Heritage Day : пятница, 24 сентябрь, 1971
9. Day of Reconciliation : четверг, 16 декабрь, 1971
10. Day of Goodwill observance : понедельник, 27 декабрь, 1971

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

1. Human Rights Day : воскресенье, 21 март, 1971
2. Workers' Day : суббота, 1 май, 1971
3. Christmas Day : суббота, 25 декабрь, 1971
4. Day of Goodwill : воскресенье, 26 декабрь, 1971