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How many working days in year 1978?

Here is the detail of the calculation:

Because 1978 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 249 working days in 1978.

Here is the list of these 11 public holidays:

1. New Year's Day observance : понедельник, 2 январь, 1978
2. Human Rights Day : вторник, 21 март, 1978
3. Good Friday : пятница, 24 март, 1978
4. Family Day : понедельник, 27 март, 1978
5. Freedom Day : четверг, 27 апрель, 1978
6. Workers' Day : понедельник, 1 май, 1978
7. Youth Day : пятница, 16 июнь, 1978
8. National Women's Day : среда, 9 август, 1978
9. Heritage Day observance : понедельник, 25 сентябрь, 1978
10. Christmas Day : понедельник, 25 декабрь, 1978
11. Day of Goodwill : вторник, 26 декабрь, 1978

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

1. New Year's Day : воскресенье, 1 январь, 1978
2. Heritage Day : воскресенье, 24 сентябрь, 1978
3. Day of Reconciliation : суббота, 16 декабрь, 1978