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How many working days in year 1993?

Here is the detail of the calculation:

Because 1993 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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 1993.

Here is the list of these 6 public holidays:

1. New Year's Day : пятница, 1 январь, 1993
2. Good Friday : пятница, 9 апрель, 1993
3. Easter Monday : понедельник, 12 апрель, 1993
4. Queen's Day : пятница, 30 апрель, 1993
5. Ascension Day : четверг, 20 май, 1993
6. Pentecost Monday : понедельник, 31 май, 1993

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

1. Easter Sunday : воскресенье, 11 апрель, 1993
2. Pentecost Sunday : воскресенье, 30 май, 1993
3. Christmas Day : суббота, 25 декабрь, 1993
4. Boxing Day : воскресенье, 26 декабрь, 1993