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How many working days in year 1944?

Here is the detail of the calculation:

Because 1944 is a leap year, it has 366 days.

Let's remove 53 saturdays and 53 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 1944.

Here is the list of these 4 public holidays:

1. Good Friday : пятница, 7 апрель, 1944
2. Labour Day : понедельник, 1 май, 1944
3. National Day : среда, 9 август, 1944
4. Christmas Day : понедельник, 25 декабрь, 1944

And here is the public holiday falling on a weekend:

1. New Year's Day : суббота, 1 январь, 1944