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How many working days in year 2039?

Here is the detail of the calculation:

Because 2039 is not a leap year, it has 365 days.

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

Now, let's remove 4 public holidays that do not fall during a weekend and we obtain 256 working days in 2039.

Here is the list of these 4 public holidays:

1. Good Friday : пятница, 8 апрель, 2039
2. Labour Day : понедельник, 2 май, 2039
3. National Day : вторник, 9 август, 2039
4. Christmas Day : понедельник, 26 декабрь, 2039

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

1. New Year's Day : суббота, 1 январь, 2039
2. Labour Day : воскресенье, 1 май, 2039
3. Christmas Day : воскресенье, 25 декабрь, 2039