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How many working days in year 1976?

Here is the detail of the calculation:

Because 1976 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 6 public holidays that do not fall during a weekend and we obtain 256 working days in 1976.

Here is the list of these 6 public holidays:

1. New Year's Day : четверг, 1 январь, 1976
2. Good Friday : пятница, 16 апрель, 1976
3. Easter Monday : понедельник, 19 апрель, 1976
4. Queen's Day : пятница, 30 апрель, 1976
5. Ascension Day : четверг, 27 май, 1976
6. Pentecost Monday : понедельник, 7 июнь, 1976

And here are the 4 public holidays falling on a weekend:

1. Easter Sunday : воскресенье, 18 апрель, 1976
2. Pentecost Sunday : воскресенье, 6 июнь, 1976
3. Christmas Day : суббота, 25 декабрь, 1976
4. Boxing Day : воскресенье, 26 декабрь, 1976