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How many working days in year 1972?

Here is the detail of the calculation:

Because 1972 is a leap year, it has 366 days.

Let's remove 53 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 1972.

Here is the list of these 10 public holidays:

1. Human Rights Day : вторник, 21 март, 1972
2. Good Friday : пятница, 31 март, 1972
3. Family Day : понедельник, 3 апрель, 1972
4. Freedom Day : четверг, 27 апрель, 1972
5. Workers' Day : понедельник, 1 май, 1972
6. Youth Day : пятница, 16 июнь, 1972
7. National Women's Day : среда, 9 август, 1972
8. Heritage Day observance : понедельник, 25 сентябрь, 1972
9. Christmas Day : понедельник, 25 декабрь, 1972
10. Day of Goodwill : вторник, 26 декабрь, 1972

And here are the 3 public holidays falling on a weekend:

1. New Year's Day : суббота, 1 январь, 1972
2. Heritage Day : воскресенье, 24 сентябрь, 1972
3. Day of Reconciliation : суббота, 16 декабрь, 1972