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How many working days in year 1979?

Here is the detail of the calculation:

Because 1979 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 5 public holidays that do not fall during a weekend and we obtain 256 working days in 1979.

Here is the list of these 5 public holidays:

1. New Year's Day : понедельник, 1 январь, 1979
2. National Sovereignty and Children's Day : понедельник, 23 апрель, 1979
3. Labour and Solidarity Day : вторник, 1 май, 1979
4. Victory Day : четверг, 30 август, 1979
5. Republic Day : понедельник, 29 октябрь, 1979

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

1. Commemoration of Atatürk, Youth and Sports Day : суббота, 19 май, 1979
2. Republic Day Eve : воскресенье, 28 октябрь, 1979